Process Design Criteria for Sulphide Concentrator & Infrastructure (Phaso 0)

Compañía Minera Doña Inés De Collahuasi _______________________________ ___________________________________ ____ COLLAHUASI COPPER PROJEC

PROCESS DESI!" CRIERIA #OR SULPHIDE CO"CE"RAOR $ I"#RASRUCURE

%

Re&ise' E(uipmen) Desi*n #a+)or

!!

!!

JJA

,JO

CL

-

%./Jun/.0

Issue' 1or Cons)ru+)ion

!!

!!

JJA

,JO

S

2

33/Ma4/ .0

Issue' 1or Appro&al

!!

!!

JJA

,JO

S

A

%5/Apr/.0

Issue' 1or Coor'ina)ion

!!

RE6

DAE

E!S

PE

EM

CLIE"

REASO" #OR RE6ISIO"

27

2ECHEL/DA67 JO2 "8 39%93

Davy

DESI!" CRIERIA "8 39%93/D2/%--%

% Shee) % o1 ;.

Collahuasi\Docs\Engin\gral\Process\des-cri\db1001r1.doc

Re&:

Design Criteria for Sulphide Concentrator & Infrastructure 23132-DB-1001 Rev.1

A2LE O# CO"E"S Pa*e %:-

!E"ERAL 1.1 Introduction 1.2 Source Codes 1.3 Defini inition of of De Design a alue lue !er"s 1.# $ro%ect Scope 1. Ite" $rovided '( C)DIC 1.* $ro%ect +reas

<

3:-

PROCESS SUMMAR7 2.1 Description 2.2 Bloc, lo Diagra"

%3

9:-

MEASUREME" U"IS A"D S7M2OLS

33

<:-

SIE DAA #.1 /ocation #.2 Site !opograph( an and So Soil Data #.3 )eteorological Da Data #.# eotechnical and Seis"ic #. ther Site Data

30

;:-

E"6IRO"ME"AL CRIERIA .1 +pp +pplica lica'l 'le e Regul egula ation tions s and and Stand tanda ards rds .2 the ther Spe Speci cifi fied ed and $er"it r"it Reui uire"e re"ent nts s .3 Su" Su""ar( "ar( of In Interp terpre reta tattion ion to to $ro $roce cess ss Design sign

35

0:-

ECO"OMIC CRIERIA *.1 valuation of +lternatives *.3 Cost-Benefit +n +nal(sis

3=

5:-

DESI!" CRIERIA RE#ERE"CE LIS

3=

=:-

PRODUCIO" SUMMAR7 4.1 +nnual $r $roduction $a $ara"eters 4.2 verall Balance 4.3 perating Schedule

3.

.:-

CHARACERISICS O# PROCESS #EED MAERIALS A"D CO"SUMA2LES

9%

Pa*e %-:-

MI"E

Collahuasi\Docs\Engin\gral\Process\des-crit\db1001r1.doc

9<

Sheet 2 of 5


A2LE O# CO"E"S Pa*e %:-

!E"ERAL 1.1 Introduction 1.2 Source Codes 1.3 Defini inition of of De Design a alue lue !er"s 1.# $ro%ect Scope 1. Ite" $rovided '( C)DIC 1.* $ro%ect +reas

<

3:-

PROCESS SUMMAR7 2.1 Description 2.2 Bloc, lo Diagra"

%3

9:-

MEASUREME" U"IS A"D S7M2OLS

33

<:-

SIE DAA #.1 /ocation #.2 Site !opograph( an and So Soil Data #.3 )eteorological Da Data #.# eotechnical and Seis"ic #. ther Site Data

30

;:-

E"6IRO"ME"AL CRIERIA .1 +pp +pplica lica'l 'le e Regul egula ation tions s and and Stand tanda ards rds .2 the ther Spe Speci cifi fied ed and $er"it r"it Reui uire"e re"ent nts s .3 Su" Su""ar( "ar( of In Interp terpre reta tattion ion to to $ro $roce cess ss Design sign

35

0:-

ECO"OMIC CRIERIA *.1 valuation of +lternatives *.3 Cost-Benefit +n +nal(sis

3=

5:-

DESI!" CRIERIA RE#ERE"CE LIS

3=

=:-

PRODUCIO" SUMMAR7 4.1 +nnual $r $roduction $a $ara"eters 4.2 verall Balance 4.3 perating Schedule

3.

.:-

CHARACERISICS O# PROCESS #EED MAERIALS A"D CO"SUMA2LES

9%

Pa*e %-:-

MI"E


9<

Sheet 2 of 5


10.1 )ine uip"ent %%:-

SULPHIDE PLA" 11.1 Crush rushiing and Conve( nve(in ing g - 6%in 6%ina a 11.2 Crush rushiing and Conve( nve(in ing g - Ro Rosari sario o 11.3 Coars oarse e re re Stora torag ge an and Re Recla clai" 11.# $ri"ar( rinding Ci Circuit 11. lotation Ci Circuit 11.* Reag Reagen entt 7and 7andli ling ng and and Dist Distri ri'u 'uti tion on 11.8 !ailin ilings gs Disp Dispos osal al and and 9ate 9aterr Rec Recla lai" i"

9<

%3:-

CO"CE"RAE HA"DLI"! A"D PIPELI"E 12.1 Concentrate !hic,eners 12.2 12.2 Conce oncen ntrat trate e Slurr lurr( ( Stora torage ge 12.3 Concentrate $u"ping 12.# 12.# Conc Concen entr trat ate e $ip $ipel elin ine e and and Cho, Cho,e e Sta Stati tion ons s

<;

%9:-

POR #ACILIIES 13.1 Concentrate 13.2 13.2 Conce oncen ntrat trate e 13.3 Concentrate 13.# 13.# Conc Concen entr trat ate e 13. 13. Conce oncen ntrat trate e 13.* 9 harf 13.8 Shiploader

<0

%<:-

!hic,ener Slurr lurr( ( Stora torage ge Deatering il iltr trat ate e !reat reat"e "ent nt and and Dis Dispo posa sall Sto Stora rage ge and and Re Reclai" lai"

UILIIES 1#.1 $oer /ine 1#.2 $oer Distri'ution 1#.3 1#.3 9ate 9aterr Su Suppl( pl( an and Di Distri stri' 'ution tion 1#.# )iscellaneous


<5

Sheet 3 of 5


%:-

!E"ERAL %:%

In)ro'u+)ion !he process design criteria contains relevant relevant data for the engineering: design design and specificat specification ion of the process reuire"ent reuire"ents s for the Copper Copper Concentrato Concentrator: r: $ipeline : $ort $ort acili acilitie ties: s: 6tilit 6tilities ies and Infras Infrastru tructu cture re for the Colla Collahua huasi si Coppe Copperr $ro%ec $ro%ectt of Co"pan;a Co"pan;a )inera )inera Doists ith other specific specific docu"ents: docu"ents: this ill 'e considered the source specification.

%:3

Sour+e Co'es !he folloing source codes are used to reference the orig-in of each criterion. CD +

S6RC Criteria provided '( C;a. )inera Do
B

Standard industr( practice

C

Bechtel-Dav( reco""endation

D

endor originated criteria



Criteria fro" process calculations



ngineering hand'oo, data



+ssu"ed data

!B+

A!o Be +dvisedA Data to 'e supplied later '( Client: e endor: or as derived fro" later calculations.

%:9

De1ini)ion o1 Desi*n 6alue erms +nnual rate

lo rate for 3* calendar da(s da(s

Dail( rate

lo rate for 2# hour da(

7ourl( Rate

lo rate for 1 hour.

perat rating Da(s

!he nu" nu"'er of pl plant ope operating da( da(s per per (ea (ear is 3* 3* da(s !he !he nu" nu"'e 'err of of pla plant nt oper operat atin ing g hou hours rs per per (ea (earr is is 48* 48*0 0 hours + utiliation fa factor of of un unit( re represents th the ca capa'ilit( of : and and reuir reuire"e e"ent nt for: for: an( euip"en euip"entt or facili facilit( t( 'eing on-line for 2# hours per da( for all operating da(s in the (ear. (ear. + utiliation factor of less than unit(

per perat atin ing g 7our 7ours s 6tiliation


Sheet # of 5


reflects reflects the co"'ined co"'ined effect of alloed alloed availa'il availa'ilit( it( for that facilit( and the utiliation effect fro" the on-line ti"e of upstrea" or donstrea" euip"ent: or fro" other factors. +vaila'ilit( +vaila'ilit(

+n availa'ilit( factor of unit( represents the capa'ilit( of : and reuire"ent for: an( an( facilit( 'eing on line 48*0 hours per (ear. (ear. +n availa'ilit( availa'ilit( factor of less than unit( reflects the fraction of the total annual ti"e that the facilit( is availa'leE for operating after deducting deducting ti"e reuired for "aintenance and other donti"e factors.

losheet Fo"inal Balance

!he values in the  "omina "ominall 2alan+e 2alan+eEE colu colu"n "n ?generall( flo rate@ that represents the stead(-state averag average e rate rate durin during g the desig design n utili utiliat ation ion ti"e ti"e per per opera operatin ting g hour hour ?da(@ ?da(@ for an( facili facilit( t( or euip" euip"ent ent.. !hus: Dail( Rate ate

G

7our 7ourl( l( Rate Rate G

+nnu +nnual al ave avera rage ge ra rate pe per da( G *0000 tHd Fo"i Fo"ina nall Bala Balanc nce e dail( rate H ? 2# hours  availa'ilit( factor@ G *0000 *0000 H ?2#J0 ?2#J0.5@ .5@ tHh

losheet Design Rate

!he values in the  Desi*n 2alan+eE 2alan+e E colu"n ?generall( flo rate@ that represents the stea tead(-st -state instantan instantaneous eous or short short duration duration rate per per operating operating hour hour ?da( ?da(@@ for for an( an( faci facili lit( t( or euip euip"e "ent nt.. !he !he instantan instantaneous eous rate reflects the designE designE factor 'eing utilied utilied for euip"ent euip"ent and piping piping siing to allo for "aintena "aintenance: nce: catch-up catch-up capa'ilit( capa'ilit( or for varia'ili varia'ilit( t( in process para"eters. !he Desi*n values Desi*n values are intended as attaina'le continuous rates and do not include an( additional design alloance?s@: '( engineer or vendor: to ensure attain"ent. !hus: 7ourl( rl( Rate G Design actor G

%:<

G 2884 2884

Fo"inal Bal Balance hou hourl( rate  design factor Refer to Section 4.# Design actors for uip"ent

Pro>e+) S+ope


Sheet  of 5


!his or, is carried out in the Santiago offices of Bechtel-Dav( using 'oth local personnel and e>patriate specialists. %:<:%

S+ope o1 #a+ili)ies !he scope of the process plant covers the folloing • • • • • • • • • • • • •

%:<:3

$ri"ar( crushing of run-of-"ine ?R)@ ore ?'oth o>ide and sulphide ores@ $ri"ar( crushed ore deliver( to stoc,pile Deliver( of pri"ar( crushed ore to the S+ "ills S+ and 'all "ills lotation plant ?rougher: first cleaner: cleaner-scavenger: second cleaner and sand flotation@ Regrind "ills !ailings handling: storage and ater recover( Concentrate handling Concentrate pipeline Concentrate deatering and port storage Concentrate ship loading $ort and "ooring facilities Infrastructure and services

S+ope o1 Ser&i+es !he pro%ect is divided into the folloing categories • • • • •

Revie Basic ngineering Detail Design and ngineering $rocure"ent Construction )anage"ent eneration and interpretation of soils data

E?+lusions !he folloing ite"s are specificall( e>cluded fro" the scope • • • • •

eological investigation and drilling of the ore 'od( )ine planning including "ine develop"ent and "ining euip"ent selection )ining activities apart fro" utilities R) ore transport to pri"ar( crusher /ocation: drilling: proving: and casing of ater suppl( ells


Sheet * of 5


• • • •

%:<:9

$reparation of sa"ples for thic,ening: filtering: rheolog( and other tests )ineralogical and "etallurgical test or, nviron"ental and construction per"itting apart fro" support activit( 7(drological and oceanographic surve(s

Plan) 2a))er4 Limi)s Client ill suppl( the folloing •

• • • • • • • • • • • • • •

Run-of-)ine ?R)@ ore to pri"ar( crusher du"p poc,et $e''le li"e delivered to storage 'ins )IBC reagent delivered to storage tan,s Dofroth 20 reagent delivered to storage tan, S-323 ?eth(l-isoprop(l thiocar'a"ate@ flotation reagent delivered to storage tan, S-113 ?isoprop(l >anthate@ flotation reagent delivered to storage area S-11# ?iso'ut(l >anthate@ flotation reagent delivered to storage area locculant delivered to storage area 9ater at suppl( ells lectrical energ( fro" utilit( Concentrate ships uel delivered to storage tan, Replace"ent and other consu"a'le operating "aterials >pended parts and "aterials of operation fro" patio 6tilities as reuired for construction

Client ill accept the folloing •

Concentrate delivered fro" shiploader


Sheet 8 of 5


%:<:;

I)ems Pro&i'e' @4 CMDIC En*ineerin* In1orma)ion C)DIC ill provide the folloing infor"ation hich ill 'e revieed '( Bechtel-Dav( • • • • • • • • •

%:;

)etallurgical testor, data Conceptual process flosheets $rocess design data input regarding plant capacit( Soils percolation tests for septic s(ste": tailings da"s: etc. $lans of e>isting facilities and utilities in pro%ect area nviron"ental studies olcanogenic data +ssess"ent of geological data ?ris,@ )eteorological data

PROJEC AREAS !he 'atter( li"it of the sulphide process plant enco"passes the pri"ar( crushing of R) ores ?'oth sulphide and o>ide@: coarse ore stoc,pile: pri"ar( grinding: flotation: regrinding: tailings disposal: deliver( of sulphide concentrate to port: filtration: concentrate storage and concentrate loadout. It is 'ro,en don into the folloing areas Area

-%-

!eneral $ro%ect plot plans Design criteria uip"ent lists eneral specifications uip"ent specifications Standards Control philosoph( Studies

Area

%--

Sulphi'e Plan)

110

Crushing and Conve(ing - 6%ina Du"p poc,et Roc, 'rea,er $ri"ar( crusher Coarse ore conve(ing

120

Crushing and Conve(ing - Rosario ?uture -- not part of scope@


Sheet 4 of 5


130

Coarse re Storage and Reclai" eed and shuttle conve(ors Storage stoc,pile Reclai" feeders Conve(ors

1#0

$ri"ar( rinding Circuit S+ "ill Ball "ill C(clones C(clone feed pu"ps

1#

$e''le Crushing Circuit ?uture -- provide space for installation@

10

lotation Circuit Rougher flotation cells Regrind "ills and c(clones irst cleaner flotation cells Cleaner-scavenger flotation cells Second cleaner colu"n cells !ailings retreat"ent c(clones !ailings retreat"ent cells

1*0

Reagent 7andling and Distri'ution /i"e storage: sla,ing and )/ distri'ution lotation reagent storage: "i>ing: and distri'ution locculant storage: "i>ing and distri'ution

180

Concentrate !hic,eners !hic,ener ra,e "echanis"s !hic,ener tan,s 6H and H pu"p s(ste"s

140

!ailings Disposal and 9ater Reclai"


Sheet 5 of 5


141

!ailings !hic,eners !hic,ener ra,e "echanis"s !hic,ener tan,s

142

!ailings !ransport !ailings c(clones ine tails launder Coarse tails pu"ping

143

!ailings Da" Da" all /inings Seepage collection

14#

9ater Reclai" Barge Booster pu"ps $ipeline

Area

3--

Con+en)ra)e Pipeline

210

Concentrate Slurr( Storage Storage tan,s +gitators

220

Concentrate $u"ping Charge pu"ps )ainline pu"ps

230

Concentrate $ipeline: alve and Cho,e Stations $ipeline alve stations Cho,es


Sheet 10 of 5


Area

9--

Por) Si)e #a+ili)ies

310

Concentrate Reception: Deatering and iltration Concentrate thic,ener !an,s +gitators ilters Co"pressors

320

Concentrate Storage and Reclai" Stoc,pile Reclai" unit Conve(ors Sa"pling s(ste"

330

Concentrate Ship /oader

3#0

)arine acilities +pproach ar" Doc, Dolphins Favigation aids

30

9ater !reat"ent and Disposal iltrate treat"ent iltrate pipeline vaporation ponds

3*0

$ort 6tilities and Infrastructure $oer suppl( /a'orator( $ort offices 9ater suppl( Roads

Area

<--

H4'rome)allur*i+al Plan) O?i'e Plan)B Refer to the Design Criteria. F o 23132-DB-2001


Sheet 11 of 5


Area

;--

U)ili)ies

10

)ain Su'station

20

$oer Distri'ution Su'stations In-plant electrical poer and distri'ution "ergenc( poer

30

9ater Suppl( and Distri'ution 9ell pu"ps Surge tan,s Booster pu"ps verland pipeline 9ater !reat"ent

Area

0--

In1ras)ru+)ure

*10

eneral Infrastructure +ccess road In-plant roads Site preparation Rail spur and siding Co""unication s(ste" Kard lighting ire protection Seer s(ste"s $lant offices $lant la'orator( Changehouse Central control roo" /unchroo" )edical facilities


Sheet 12 of 5


*20

9or,shops and 9arehouses !ruc, "aintenance shop eneral "aintenance shops Concentrator shop S-9 plant shop /ight vehicle shop 9arehouse and office enced storage (ard

*30

$er"anent Ca"p 7ourl(-paid housing Salaried housing Cafeterias Recreation facilities !ransport ter"inal

*#0

+irstrip

*0

$lant +ccess Roads

Area

5--

Mo@ile e(uipmen)

Area

=--

emporar4 #a+ili)ies Construction ca"p !e"porar( poer Construction euip"ent

3:-

PROCESS SUMMAR7 3:%

Des+rip)ion !he Collahuasi Copper $ro%ect is located near 6%ina: eastHsoutheast of Iuiue in northern Chile. It is oned '( )inera )antos )inorco /tda. and alcon'ridge Chile: S.+.. !he propert( is operated on 'ehalf of the ners '( Co"pa<;a )inera Do i"atel( 2* "illion tons of copper ore per (ear '( open pit folloed '( co""inution and flotation for the sulfide "inerals to produce concentrateL and acid heap leaching and production of copper cathodes in a solvent e>tractionHelectroinning ?SH9@ plant for o>ide "aterials. !o separate porph(r( copper ore 'odies situated 10 ," apart have 'een outlined. !he estern Rosario deposit has a resource of over one 'illion tons of copper grading appro>i"atel( 1.1M Cu and is "ade up of various ore t(pes


Sheet 13 of 5


including o>ides: secondar( enrich"ent: and pri"ar( protore. !he near'( 6%ina deposit to the east is esti"ated to contain appro>i"atel( 10 "illion tons of secondaril(-enriched chalcocite ore grading 1.8M Cu. !he secondar( enrich"ent is underlain '( a pri"ar( protore resource: the sie of hich is a'out *00 "illion tons at 0.4M Cu. 7uinuintipa: located est of Rosario: is an o>ide deposit ith 4 "illion tons grading 1.#M Cu. !he pro%ect is a grassroots venture that ill include the develop"ent of all production and ancillar( facilities: as ell as infrastructure such as ater and poer suppl(: port facilities: and staff housing. 9hen production starts in 1554: Collahuasi ill 'e one of the largest copper "ines in the orld. pen-pit "ining "ethods ill 'e e"plo(ed: starting ith the 6%ina ore 'od(: hich is located at #:#00 ".a.s.l. +fter * (ears: production ill start at the ad%acent Rosario ore 'od(: hich is located at #:*00 ".a.s.l. !he current 2-(ear "ine plan is 'ased on re"oving appro>i"atel( 12# "illion tons of sulfide ore at a grade of 1.8*M copper: and 2* "illion tons of o>ide and "i>ed ore at an average grade of 1.20M copper fro" the 6%ina ore 'od(. $roduction ill then shift to Rosario: here #23 "illion tons of sulfide ore at a grade of 1.12M copper: and 1 "illion tons of o>ide and "i>ed ore at an average grade of 1.3M copper ill 'e "ined. In addition: 8.** "illion tons of o>ide ore grading 1.#M copper ill 'e "ined fro" 7uinuintipa. In the process of aste roc, re"oval: sufficient copper o>ide ore ill 'eco"e availa'le to support a che"ical leaching folloed '( solvent e>traction and electroinning operation to produce 0:000 tons per (ear of high-grade cathode copper for 10 (ears. Bench-scale flotation testing has shon that all copper sulfides can 'e readil( concentrated '( using standard flotation technolog(. Copper sulfide ore ill 'e treated in a flotation concentrator at a rate of *0:000 tons per da( to produce an average 3#:000 tons of fine copper per (ear in concentrate for the first si> (ears: folloed '( 22#:000 tons the ne>t 15 (ears.


Sheet 1# of 5


3:%:%

Pro>e+) Philosoph4 Collahuasi is co""itted to developing a safe and environ"entall( sound pro%ect: e"plo(ing highest ualit( design criteria and technolog(: "ini"iing ater and "anning reuire"ents to (ield a unit cash operating cost in the loer tercile of the industr( cost curve. !o achieve this goal: it is i"perative that during all stages of pro%ect develop"ent: construction and operation: ever( design 'e tested against the folloing criteria •

)a>i"ie safet( in all areas of the operation.

•

)ini"ie the i""ediate i"pact on the environ"ent and prevent its long ter" degradation.

•

6tilie euip"ent hich ill "ini"ie "aintenance and ensure the specified perfor"ance.

•

)ini"ie ris, '( e"plo(ing proven technolog( herever possi'le.

•

)ini"ie staff nu"'ers.

•

/i"it pro'le"s associated ith or,ing at altitude.

•

$roduce high ualit( products.

•

/i"it capital e>penditure ithout loering ualit( standards.

•

)ini"ie on-site construction activities to e>pedite the pro%ect co"pletion and reduce on-site la'or ?"odular concepts@.

•

)a>i"ie the re-use of ater on-site.

•

Incorporate state-of-the-art energ( "ini"iing s(ste"s.

•

)a>i"ie dust suppression in all parts of the operation.

•

/i"it capital 'ut guard against under-design.


Sheet 1 of 5


3:%:3

Sulphi'e Ore Pro+essin* !eneral +s a 'ase case: the concentrator operation is designed for a feed rate of *0:000 tons per da( throughout the life of the operation. 7oever: plant la(outs provide for a possi'le e>pansion at a later date. 9hile the sie of the e>pansion is not defined: it is recognied that an e>pansion to 50:000 tons per da( or "ore is reuired to "aintain the initial fine copper production hen the Rosario pri"ar( ores are 'eing processed. $rovisions in the process design and plant la(out are included for this potential e>pansion. Crushin* an' Con&e4in* Run of "ine ?R)@ sulphide ore is delivered to the pri"ar( crusher directl( fro" the "ine ith 2#0-ton "ine truc,s. !he R) ore is crushed '( a *0-inch > 45-inch g(rator( crusher to a top sie of appro>i"atel( 300-"" and conve(ed overland to a covered coarse ore stoc,pile. + 'elt conve(or is provided under the crusher to feed onto the overland conve(or. Dust suppression is provided at transfer points in the crushing plant and along the conve(ors. !he R) o>ide ore is stoc,piled at the east side of the 6%ina pit and fro" there is fed '( front-end loaders and truc,s to *0-inch > 45-inch g(rator( crusher. R) is crushed to a top sie of appro>i"atel( 200-"" and conve(ed overland to the o>ide screening and crushing s(ste". !his second pri"ar( crusher is located ne>t to the sulphide crusher and is identical in design. + '(pass conve(or is provided so that the o>ide pri"ar( crusher can 'e used for sulphide ore in case of an e"ergenc(. +n( oversie pieces in R) ore ill 'e 'ro,en up '( a roc,ha""er at the pri"ar( crusher du"p hopper of each of the crushers. S)ora*e an' Re+laim !he overland conve(or discharges to a "ova'le conve(or: hich in turn: discharges the ore into the *0:000 t live capacit( covered stoc,pile. re is reclai"ed ith si> varia'le-speed 'elt feeders ?three for each S+ "ill line@ onto the S+ "ill feed conve(ors. !he feeders are arranged in a pattern to "ini"ie rathole for"ation and to "a>i"ie live capacit(. Dust collection is provided in the reclai" tunnels near each feeder.

!rin'in*


Sheet 1* of 5


!he pri"ar( crushed ore is ground to flotation feed sie in to stages of et grinding ith to "ill lines. re is reclai"ed fro" the stoc,pile ith varia'le speed 'elt feeders that discharge onto the "ill feed conve(ors. $ri"ar( grinding is ith to 8:400-,9 se"i-autogenous ?S+@ "ills folloed '( secondar( grinding in 5:300-,9 'all "ills: one each per S+ "ill. !he S+ "ill discharges to tro""el screens and the oversie pe''les ?N10 ""@ are rec(cled 'ac, to the S+ "ills ith conve(ors. !ro""el screen undersie flos '( gravit( to the S+ "ill discharge su"p. Secondar( grinding is conducted in a closed circuit ith c(clones. !he c(clone underflo is fed to the 'all "ill and the overflo discharges into a flotation feed distri'utor: hich splits the feed to to 'an,s of rougher flotation cells. !here are to distri'utors: one each per 'all "ill circuit. Sulphi'e #lo)a)ion verall the flotation circuit includes rougher flotation ith regrinding and to-stage cleaning of the rougher concentrate to a final concentrate. irst-cleaner tailings are scavenged and the concentrate is returned to the regrind circuit. Rougher tailings are classified and the coarser fraction treated ith an additional stage of flotation. !ailings retreat"ent concentrate also reports to the regrind circuit. Rougher flotation is carried out in four ros of cells: each ith eight conventional 128-" 3 tan, flotation cells. Rougher concentrate is 'lended ith cleaner scavenger and sand concentrates and pu"ped to the to clusters of regrind c(clones. !he c(clone underflo is split and pu"ped to the five regrind toer "ills: and the c(clone overflo flos '( gravit( to the cleaner flotation feed pu"ps. !he regrind "ills discharge into the regrind c(clone feed su"p and is rec(cled 'ac, to the c(clones. Reground concentrate is cleaned in three ros of four conventional 128"3 tan, flotation cells. irst-cleaner tailings are scavenged in three ros of four cleaner-scavenger cells hich are a continuation of the cleaner ros. !he first-cleaner concentrate is pu"ped to five second-cleaner colu"n flotation cells. Second-cleaner tailings are recirculated to firstcleaner cells via the feed pu"ps. !he second cleaner concentrate flos '( gravit( to the concentrate thic,eners. Cleaner scavenger tailings are sent to the tailings thic,ener.


Sheet 18 of 5


Rougher tailings are pu"ped to c(clones for classification into a coarse underflo fraction and a fine overflo fraction. !he underflo is treated in a 'an, of three 128-" 3 conventional tan, flotation cells. lotation concentrate is pu"ped 'ac, to the regrind "ills and the tailings are sent to the tailings c(clones descri'ed 'elo. !he flotation circuit produces a final copper concentrate containing 'eteen 30M and 0M copper: depending on the t(pe of ore fed to the plant. verall copper recover( is e>pected to 'e 52M. Con+en)ra)e Han'lin* an' Dea)erin* inal flotation concentrate fro" the colu"n cells flos to to concentrate thic,eners. Space for a third thic,ener is provided in case of a future plant e>pansion. Concentrate thic,ener underflo is pu"ped to to agitated concentrate storage tan,s ahead of the concentrate pipeline. Concentrate thic,ener overflo flos '( gravit( to the concentrate e"ergenc( pond and su'seuentl( to the reclai" ater reservoir. !hic,ened copper concentrate at -*M solids is transported to the port site at $unta $atache '( pipeline. Concentrate is ithdran fro" the slurr( storage tan,s '( the pipeline pre-charge pu"ps and fed to the to "ain charge pu"ps ?one operating: one stand'(@ hich pu"p the concentrate to the high point est of concentrator: fro" hich it flo '( gravit( to the port. Cho,e and valve stations are strategicall( installed along the pipeline to control flo and pressure in the line. Concentrate discharges fro" the pipeline into a concentrate thic,ener folloed '( transfer to agitated concentrate storage tan,s. Concentrate is pu"ped fro" these tan,s to three pressure filters: to operating and one stand'(. ilter ca,e: containing appro>i"atel( 4-5M "oisture is conve(ed to the concentrate storage 'uilding. !he filterca,e is stored in an +-fra"e storage 'uilding hich contains a 8:000-ton storage pile. + traveling tripper located in the pea, of the 'uilding discharges the filterca,e along the pile. $eriodicall(: the filter ca,e is reclai"ed and conve(ed to a ship loader. ro" here the concentrate is transferred into the hold of a ship for transport to an overseas s"elter. + portal scraper reclai"er is used to reclai" the concentrate for shiploading. Conve(ors in series are used to transfer the concentrate fro" the reclai"er to the 1:30 tonsHhr shiploader. !he reclai" s(ste" includes provision for "anual reclai" ith front-end loader if necessar(. + sa"pler and an inventor(-t(pe 'eltscale are provided for product loadout rate and ualit( control.


Sheet 14 of 5


!he "arine facilities include the approach trestle: a uadrant shiploader: a service platfor": and necessar( service and protection dolphins and "ooring 'uo(s. Favigational aids are provided as reuired. !he "arine facilities are designed to handle vessels fro" 10:000 dt to *0:000 dt. !he vessel loading reuires arping operations. Rea*en) S4s)ems /i"e is fed as sla,ed li"e to the S+ "ills and regrind "ills to control p7 in the flotation circuits. Sla,ed li"e is prepared '( grinding pe''le li"e ith a vertical stirred 'all "ill. /iuid collector and frothers are received in 'ul,: then "etered to the 'all "ill or flotation circuit ithout "i>ing. Dr( collectors ?>anthates@ are "i>ed ith ater folloed '( "etering to the flotation circuit. Si"ilarl(: flocculant is "i>ed ith ater and added to the tailings thic,eners. ailin*s Disposal !he tailings strea"s produced in the concentrator are the tailings retreat"ent flotation tailings: the tailings retreat"ent c(clone overflo: and the cleaner-scavenger tailings. !he tailings retreat"ent flotation tailings are c(cloned and the c(clone underflo ?sand fraction@ pu"ped to the tailings i"pound"ent for construction of the tailings da". !he three fine tailings strea"s ?to c(clone overflos and the cleanerscavenger tailings@ flo to four high-rate tailings thic,eners. !hic,ener underflo is pu"ped to a gravit( launder that carries the slurr( to the tailings disposal area located north of the concentrator. !hic,ener overflo ater discharges '( gravit( to the reclai" ater reservoir and is pu"ped 'ac, to the concentrator to 'e added to the grinding and flotation circuits. Space is provided for additional tailings thic,eners for future e>pansion. !he fine tailings launder is routed over a gentle slope to the tailings disposal site. !he starter da" is constructed ith 'orroed "aterial on a leveled 'ase and has a capacit( for the first 14 "onths of operation at *0:000 tonsHda(. Diversion 'er"s and ditches on the uphill side of the i"pound"ent area divert stor" ater runoff.


Sheet 15 of 5


Selective upstrea" deposition of the fine tailings along the da" controls the distri'ution of tailings into the 'asin and the location of the reclai" ater decant pool: hich ill progressivel( "ove upstrea" on the northern edge of the 'asin. Barge-"ounted pu"ps rec(cle reclai"ed ater to an inter"ediate 'ooster pu"p station: hich pu"ps the ater to the reclai" ater storage reservoir located near the tailings thic,eners. !he tailings disposal s(ste" also includes a seepage collection facilit( donstrea" of the da". !he seepage ater is pu"ped 'ac, to the inter"ediate 'ooster pu"p station. +t the ti"e of plant closure: the entire tailings i"pound"ent area ill 'e capped ith a la(er of coarse roc, to prevent ind erosion of the finegrained surface "aterial. !he diversion ditch and 'er" ill 'e left in place to divert runoff fro" the area. ,a)er S4s)ems 9ater for the sulphide plant consists of fresh ater and reclai"ed ater. !o fresh ater reservoirs are provided est of the plant to suppl( ater '( gravit( to the plant. 9ater reclai"ed fro" the concentrate and tailings thic,eners and fro" the tailings i"pound"ent is stored in a third reservoir located near the tailings thic,eners. resh ater is pu"ped fro" ells in the Coposa 'asin to the storage reservoirs at the plant. Distri'ution to the plant includes ater reuired for process needs in the o>ide and sulphide plants: as ell as ater reuired for the "ine: pota'le ater and fireater. or the sulphide plant: fresh ater is used for gland seal ater: reagent "i>ing: cooling ater and other process reuire"ents. +ll ater reuired for the o>ide plant co"es fro" fresh ater sources. !his includes ater added to the agglo"erators: heaps: solution ponds: and SH9 plant. !hic,ener overflo ater flos '( gravit( to the reclai" ater reservoir and tailings i"pound"ent reclai" ater is pu"ped. ro" the reservoir the ater is pu"ped into a distri'ution "anifold that is connected to a head tan, installed est of the coarse ore stoc,pile. !he reclai" ater is used in the grinding and flotation circuits. !he head tan, gives a s"all surge capacit( ?1 "inutes@ hile regulating the pressure on the distri'ution "anifold.


Sheet 20 of 5


3:%:9

On/Si)e In1ras)ru+)ure Poer Suppl4 $oer de"and at site is su'stantial: reuiring a 100-)9 suppl(L and poer is supplied '( a ne poerline connected to the northern Chilean grid. Connection to the grid is fro" the su'station at /aguna via a dou'le-circuit: 220-, line: 120 ," in length: ter"inating at a su'station at site ith e>pansion capa'ilit(. Site-specific altitude: ind: and te"perature considerations encourage the use of a dou'le circuit to ensure a relia'le poer suppl(. Initial poer reuire"ents during construction and e"ergenc( poer reuire"ents ill 'e provided '( diesel generators. ,a)er Suppl4 9ater ill 'e pu"ped fro" 1# ells located in the Coposa 'asin into a collection tan, and then pu"ped through a 'uried pipe to a fresh ater reservoir located at the plant site. C)DIC ill locate: drill and case each ell. $u"ps ill 'e installed in each ell and connected to a pipe netor, that 'rings the ater to the collection tan,. ne ell ill 'e dedicated to suppl( ater to the construction and per"anent ca"ps. Camp + ca"p to acco""odate operating staff and contractors is located at the Salar de Coposa: appro>i"atel( 1 ," fro" the plant site. Coposa offers pleasant surroundings and a favora'le elevation of 3:400 ".a.s.l. !he per"anent ca"p ill 'e designed to provide rest and recreational facilities that ill "itigate the hardships of the site. For"al or, pattern ill 'e seven 12-hour da(s at site and seven da(s off. +cco""odations are designed to have to people sharing one uarter. In general: the roo" ill onl( 'e occupied '( one person: the other person 'eing on hisHher off turn. ach roo" has its on 'athroo": ith personal shoer: sin, and toilet. !he dor"itories: dining and recreational facilities ill 'e 'uilt together. Roa's Roads in the i""ediate vicinit( of the plant and to the ca"p are provided ith a full( paved surface. $ar,ing areas around 'uildings: arehouse: railroad station: and ad"inistration are also surfaced. +ll other roads: including a connection to the Oue'rada Blanca road: are graded gravel. In1ras)ru+)ure 2uil'in*s


Sheet 21 of 5


!he "ine truc, "aintenance shop and ash shop are located north of the 6%ina pit. !he truc, shops are designed for servicing up to 300-ton capacit( "ine truc,s. !he "ine truc, "aintenance 'uilding contains the "ain truc, service 'a(s: and a lu'e: fuel and "echanical elding and electrical "aintenance 'a(. +lso included in the co"ple> are offices: change roo": training roo": and lunch roo"s. Fe>t to the "ain 'uilding: there is an outside area for tire re"oval and storage. !he central "aintenance co"ple> is located north of the sulphide concentrator. It contains the central "aintenance shops and the central arehouse. 9ithin the central shops are seven individual shops. !hese are • • • • • • • •

)achine shop 9elding shop $ipe shop Ru''er shop Building and grounds shop lectric shop )echanical support shop. Instru"ent shop.

!he light vehicle "aintenance shop is located in the central "aintenance co"ple>. )aterial and co"ponents delivered to the central arehouses ill 'e received: inspected: entered into inventor(: classified and stored in designated areas. +n esti"ated #0:000 ite"s ill 'e "aintained in stoc,. !his ill include consign"ent stoc,s '( supplier and "aintenance contractors. !he central arehouse is arranged for drive-inHdrive-out service to custo"ers. !he fenced-in (ard: for uncovered outside storage: is located ad%acent to and northest of the central arehouse. +n independent concentrator "aintenance shop is also provided. It is located near the concentrator. !he principal other on-site infrastructure 'uildings are • • • • • • •

ate house and truc, scale at the Oue'rada Blanca road )ain entrance and truc, scale at the $oo +l"onte road 6%ina "ine la'orator( and offices )ill office 'uilding for sulphide concentrator +d"inistration 'uilding: and clinic )ain la'orator( "ergenc( vehicles garage


Sheet 22 of 5


• •

>ide plant offices $ort la'orator( and offices

La@ora)ories !he pro%ect includes si> la'oratories as follos • • • • • •

)ain la'orator( )ill "etallurgical la'orator( S-9 la'orator( )ine la'orator( - 6%ina )ine )ine la'orator( - Rosario )ine ?e>isting: ith future e>pansion@ $ort la'orator(

!hese la'oratories are used to anal(e sa"ples collected fro" various sources. or the sulphide concentrator: dail( and shift sa"ples are collected fro" "etallurgical full-strea" sa"plers and fro" the on-strea" anal(er ?S+@ s(ste" for "etallurgical control. !hese sa"ples are delivered to the sa"ple preparation la'orator(. +fter preparation: representative cuts of each sa"ple are ta,en to the "ain la'orator( for further processing and anal(sis. + et "etallurgical la'orator( is availa'le to perfor" et "etallurgical testing such as grinding and flotation. >isting pilot-plant facilities are used for sulfide and o>ide leach testing. Communi+a)ions + state-of-the-art netor, to serve the teleco""unication needs of the Collahuasi $ro%ect is planned. !his s(ste" is capa'le of carr(ing all ,inds of co""unication services to ever( corner of the organiation: including voice: data: facsi"ile: i"age audio: and video. It also serves to connect or integrate other specialied teleco""unications s(ste"s traditionall( loosel( coupled: such as process control: SC+D+: and truc, dispatch. Se+uri)4 !he "ain facilities are fenced ith a securit( gate?s@. $ipeline patrol is regular or on an ad-hoc 'asis: as needed.


Sheet 23 of 5


Heal)h an' Sa1e)4 + s"all e"ergenc( hospital is staffed ith a resident doctor and associated "edical personnel. + roo" in the "ain ad"inistration 'uilding is dedicated to safet( "eetings: de"onstrations: and instruction. Sea*e an' !ar@a*e Disposal !o "ain seage treat"ent plants are provided processing facilities and one to serve the ca"p.

one to serve the

9here applica'le: septic tan,s and drains are used. Re"ote areas: such as aste-roc, du"ps or the tailings da": are served '( che"ical toilets. ar'age is sorted for "etal: glass: and paper for rec(cling. Re"aining industrial gar'age is disposed ithin special poc,ets in the aste-roc, du"ps and do"estic aste disposed of in sanitar( landfill sites. 3:%:<

O11/Si)e In1ras)ru+)ure Mine Si)e A++ess Roa' + ne "ine site access road ill 'e 'uilt north of the "ine site through $oo +l"onte and !a"'illos. !he Oue'rada Blanca road ill 'e used initiall( hile the $oo +l"onte - !a"'illos road is under construction. Fine "onths have 'een scheduled to co"plete the construction and upgrading of the road: therefore the road ill not 'e availa'le for general use until the end of 155*. !his ill 'e in ti"e for the transportation of "ining and plant euip"ent and 'ul, "aterials and ahead of the "ain 'uildup of or,ers. !he road 'eteen $oo +l"onte and the "ine site ill 'e constructed ith a total idth of 5 ": a 8-" running section and 1-" shoulders on 'oth sides. It ill have a "a>i"u" gradient of 4M and a "ini"u" design speed of *0 ,"Hh. !he running surface ill 'e paved. arious in-plant roads ill 'e developed: including a light vehicle road and a "ine truc, road 'eteen 6%ina and 7uinuintipa. !he light vehicle road ill also connect to the Oua'rada Blanca road here a securit( gate ill 'e provided.


Sheet 2# of 5


Railroa' +n old 1.0-" gage railroad to the "ine site e>ists. !his railroad is generall( in poor condition and ill reuire upgrading to handle a su'stantial increase in service. In the 6%ina 'asin: the railroad "ust 'e rerouted around the leach facilities. Coposa Airs)rip +n airstrip ill 'e constructed in the Coposa 'asin hich is capa'le of handling tur'o prop aircraft. Por) In1ras)ru+)ure #a+ili)ies $ort facilities are located at Caleta $atache: hich is * ," south of Iuiue. !he paved national higha(: Fational Route 1: runs due south fro" the cit( of Iuiue past $unta $atache. !his road ill 'e used '( all construction and operating personnel for access to the site. + ne interchange and unpaved road: appro>i"atel( 1.-,"-long: ill 'e constructed for access to the port site. !he port support facilities include a guardhouse and a 'uilding housing offices: a la'orator(: change roo"s: and dining facilities. +n additional s"all 'uilding is provided ith offices for custo"sHi""igration: vessel and shore cre use. + "aintenance shop: electrical euip"ent roo": and several outdoor tan,s are provided: as ell as a flag staff for "ariti"e signaling. $art of the filtrate: a sufficient a"ount to provide pota'le ater needs: is treated in a reverse os"osis plant. !he 'alance of the ater is pu"ped a short distance inland and disposed of in four evaporation ponds. I(ui(ue #a+ili)ies +d"inistrative and support activities for the pro%ect ill 'e housed in Iuiue. Assem@l4 7ar' +n asse"'l( (ard ill 'e developed at $oo +l"onte !a"'illo. !his facilit( ill 'e used to preasse"'le euip"ent and "aterials to "a>i"u" e>tent possi'le prior to transporting the" to the %o' site.

Permi))in*


Sheet 2 of 5


+ssistance to C)DIC for o'taining all necessar( environ"ental: construction and 'uilding per"its is provided.


Sheet 2* of 5


3:3

2lo+ #lo Dia*ram ROM ore Primar4 Crusher S)o+pil e SA! Mill

Re*rin' C4+lone s U# Re*rin' Mills

-#

-# C4+lone U# 2all Mill

C #lo)a)io  C

Cleaner S+a&en



Rou*her

C  

O#

San' C4+lone U# San' #lo)a)ion

C 

O# ailin*s C4+lone U# ailin*s Pumps ailin*s

#lo)a)io n C Con+en) ra)e hi+en er Slurr4 S)ora*e Pipeline Con+en) hi+en er Slurr4 #il)er

ailin*s hi+en

9:-

ailin*s 2asin MEASUREME" U"IS A"D S7M2OLS


S)ora*e Shiploa 'er

Sheet 28 of 5


!he )odernied )etric S(ste" of "easure"ent used in this stud( and report are in accordance ith ?6S+@ +S!) 340: Standard $ractice for 6se of the International S(ste" ?SI@ of 6nits. + period: not co""a: is used as the deci"al "ar,er. + s"all space ?ith no co""a@ is used to separate groups of three integers. !he reference conditions for gas volu"e are 0 °C and 101.32 ,$a: corresponding ith a "olar ?ideal@ gas volu"e of 22.#1# " 3H?,g×"ol@. !his is shon as "3 ?nor"al@E or a''reviated to ?non-SI@ F" 3.E !he unit tE rather than )g: is used for 1 000 ,g "ass. SI Base 6nits ?di"ensionall( independent@ )easured +ttri'ute

6nit

S("'ol

/ength )ass !i"e lectric current !her"od(na"ic te"perature +"ount of su'stance /u"inous intensit(

"eter ,ilogra" second a"pere Pelvin "ole candela

" ,g s + P "ol cd

$er"itted Base 6nits )easured +ttri'ute

6nit Definition

S("'ol

!i"e

"inute *0 s hour *0 "in da( 2# h ?calendar@ (ear 3* d "etric ton ?1 000 ,g@

"in

)ass

h d ( t

?Fote SI prefi>es: as listed 'elo: are used onl( ith SI 'ase units. It is incorrect to use these prefi>es ith the per"itted 'ase units.E@


Sheet 24 of 5


SI $refi>es ?selected list onl(@ )ultiplication actor

$refi>

S("'ol

1012 105 10* 103 102 10 10-1 10-2

tera giga "ega ,ilo hecto deca deci centi

!  ) , h da d c

)ultiplication actor

$refi>

S("'ol

10-3 10-* 10-5 10-12

"illi "icro nano pico

" 1 n p

!he prefi>es and prefi> s("'ols are used ith the SI 'ase units and derived units - ith the e>ception of ,g. !he 'ase "ass unit: ,g: alread( has a prefi>: and the SI prefi>es are then applied to the unit gra" ?g@. In this "anner: the s("'ol for "etric ton is )g: hoever in this criteria the per"itted alternate: t as listed a'ove: is used. !he +S!) per"itted for" 9h is used rather than 9 ×h. Derived SI 6nits of Special Fa"e )easured +ttri'ute

6nit

S("'ol

or"ula

reuenc( ?periodic@ orce $ressure: stress nerg(: or,: heat t(. $oer: radiant flu> Ot(. of electricit( lectric potential: e"f lectric capacitance lectric resistance lectric conductance )agnetic flu> )agnetic flu> densit( Inductance Celsius te"perature $lane angle Solid angle /u"inous flu>

hert neton pascal %oule att coulo"' volt farad oh" sie"ens e'er tesla henr( degree Celsius radian steradian lu"en

7 F $a Q 9 C  

1Hs ,g×"Hs2 FH" 2 F ×" QHs + ×s 9H+ CH H+ +H  ×s 9'H" 2 9'H+ P-283.1 di"ensionless di"ensionless cd×sr


Ω

S 9' ! 7 o C rad sr l"

Sheet 25 of 5


Illu"inence +ctivit( ?of a radionuclide@ +'sor'ed dose Dose euivalent

lu> 'ecuerel gra( sievert

l> B ( Sv

l"H"2 1Hs QH,g QH,g

6nits in 6se )easured +ttri'ute

6nit

S("'ol

Definition

$lane angle

degree "inute second liter hectare ,iloatt-hour

o

1o G ?πH140@ rad 1 G ?1H*0@ o 1A G ?1H*0@ 1 / G 10 -3 "3 1 ha G 10 # "2 1 ,9h G 3.* )Q

olu"e +rea nerg( ?electrical@

 A / ha ,9h

So"e Co""on Derived 6nits )easured +ttri'ute

6nit

S("'ol

+cceleration +ngular acceleration +ngular velocit( +rea Concentration Current densit( Densit( ?"ass@ lectric flu> densit( ntrop( 7eat capacit( 7eat flu> densit( /u"inance )agnetic field strength )olar energ( )olar entrop( )olar heat capacit( )o"ent of force $er"ea'ilit( ?"agnetic@ $oer densit( Specific heat capacit( Specific energ( Specific entrop( Specific volu"e Surface tension !her"al conductivit( !her"al conductance velocit(

"eter per second suared radian per second suared radian per second suare "eter "ol per cu'ic "eter a"pere per suare "eter ,ilogra" per cu'ic "eter coulo"' per suare "eter %oule per Pelvin %oule per Pelvin att per suare "eter candela per suare "eter a"pere per "eter %oule per "ole %oule per "ole Pelvin %oule per "ole Pelvin neton "eter henr( per "eter att per suare "eter %oule per ,ilogra" Pelvin %oule per ,ilogra" %oule per ,ilogra" Pelvin cu'ic "eter per ,ilogra" neton per "eter att per "eter Pelvin att per suare "eter Pelvin "eter per second

"Hs 2 radHs 2 radHs "2 "olH" 3 +H" 2 ,gH" 3 CH" 2 QHP QHP 9H" 2 cdH" 2 +H" QH"ol QH?"ol ×P@ QH?"ol ×P@ F ×" 7H" 9H" 2 QH?,gP@ QH,g QH?,g ×P@ " 3H,g FH" 9H?" ×P@ 9H?" 2×P@ "Hs


Sheet 30 of 5


viscosit(: d(na"ic viscosit(: ,ine"atic volu"e

pascal second suare "eter per second cu'ic "eter

$a ×s " 2Hs "3

+''reviations of ther !er"s !er" alternating current 'arrel 'oiling point cosine cotangent deci'el dia"eter direct current electro"otive force induced draft inside dia"eter "a>i"u" "ini"u" "ole percent "olecular "ass ?eight@ parts per 'illion parts per "illion parts per "illion '( volu"e parts per "illion '( "ass ?eight@ poer factor revolutions per "inute revolutions per second root "ean suare sine specific gravit( tangent te"perature ultra high freuenc( ver( high freuenc( volu"e volu"e percent eight ?"ass@ eight ?"ass@ percent


+''reviation ac ''l 'p cos cot dB dia dc e"f ID i.dia "a>" "in" "ol M "ol t pp' pp" pp"v pp" $ rp" rps r"s sin Sp r tan te"p 67 7 vol vol M t t M

Sheet 31 of 5


<:-

SIE DAA <:%

Si)e Lo+a)ions !he Collahuasi copper deposit is located in the irst Region of Chile near 6%ina: 20 ," east-southeast of the ton of Iuiue: 1 ," est of the ChileHBolivia frontier and 10 ," east of the e>isting Oue'rada Blanca copper "ine. !his region ,non as the Chilean +ltiplano: a high plain characteried '( 'road valle(s 'ounded on the east '( a chain of (oung volcanoes: for"ing the crest of the +ndean Cordillera. !he deposit supported a 'ustling "ining ton in the earl( 20th Centur(: hich as serviced '( a raila( through 6%ina. $lant "ean elevation is appro>i"atel( #:#00 " a'ove sea level. !he proposed location is at F8*42000 and 3400 on geodetic co-ordinates. !he nearest drainage and ater suppl( is the )ichincha 'asin. !he "a%or source of ater is fro" the Coposa 'asin hich is appro>i"atel( 20 ," north of the plant site. egetation in the "ine area is sparse: 'ut a large variet( of 'ird species populates the near'( salars and groups of lla"as: vicunas and vicachas are present. !he port facilities: including the filter plant: concentrate storage facilities and "arine ter"inal: are located at $unta $atache appro>i"atel( * ," south of Iuiue. !he plant site is connected to the port site ith a 200 ," slurr( pipeline. <:%:%

ranspor)a)ion #a+ili)ies !he site is presentl( reached '( road fro" the $an +"erican 7igha( ?Route @. !his is a high-ualit( asphalt higha( ith a heav( transport rating. +n upgraded road as 'uilt for the near'( Oue'rada Blanca pro%ect and this road is availa'le to C)DIC. 7oever: this road has "an( hairpin 'ends in its final section and can 'e closed '( 'ad eather. + ne route via $oo +l"onte and !a"'illos ill 'e 'uilt to handle the heav( construction traffic and provide a per"anent road access to the "ine site. Fo difficulties in road transportation of nor"al euip"ent ite"s are foreseen. !ransportation arrange"ents 'eteen ca"ps: plant site: and Iuiue ill 'e '( private vehicles or 'us. !here are car rental facilities in Iuiue for the "a%or car rental co"panies. Rail transportation is availa'le to the rail head at 6%ina '( errocarril de +ntofagasta Bolivia. Rail ship"ents ill 'e restricted to ite"s # " high and # " ide. !he nearest air freight ter"inal is at Iuiue: here there is a co""ercial airport ith connections to dail( flights to principal Forth +"erican and uropean cities via Santiago. +n unpaved: 2.-," airstrip at Oue'rada


Sheet 32 of 5


Blanca serves 'oth properties. !he elevation of this airstrip and possi'le closure '( fog "a,es its use unrelia'le and availa'le onl( to restricted t(pes of aircraft. + ne airstrip is scheduled to 'e 'uilt near the per"anent ca"p located on the estern edge of the Coposa 'asin. )a%or port facilities are located in Iuiue: hich is euipped ith a harf capa'le of handling ships up to a 30:000-t capacit(. !here are e>isting shiploading facilities at a salt ter"inal at $atillos *0 ," south of Iuiue. I"ported euip"ent ill 'e unloaded at Iuiue: +ntofagasta: or alparaiso ?ith on-ship"ent to the north@ and sent '( truc, andHor rail to site. +ntofagasta has a deep-ater port ?10 "@ ith full crane facilities and harves of 18- to 220-" acco""odation for vessels up to 80:000 t ?D9!@. <:%:3

Roa' Dis)an+esF m Site 6%ina 6%ina 6%ina 6%ina 6%ina Site Site

<:%:9

-

6%ina Cala"a +ntofagasta !ocopilla350 Iuiue $unta $atache Salar de Coposa Salar de )ichincha

 22 #80 21 28 2* 5

Si)e A++ommo'a)ion isitors to the Collahuasi site "a( drive fro" Iuiue: Cala"a: !ocopilla: or +ntofagasta: here hotel acco""odations are availa'le. C)DIC provides li"ited guest-house acco""odation in the ca"p near the Rosario "ine site. + construction ca"p ill 'e constructed and ill provide so"e facilities for visitors. 9hen the per"anent ca"p 'eco"es availa'le: additional acco""odations ill 'e availa'le.

<:3

Si)e opo*raph4 !he plant area is located to the north of the 6%ina open pit in "ountainous terrain in the high +ndes on a dissected plateau at elevations ranging fro" #:300 to #:*00 ". !he process plant topograph( is relativel( flat ith s"all undulating hills. )ost of this area ill allo plant location on cut areas.

<:9

Me)eorolo*i+al Da)a !he "eteorological design data can 'e found in the latest revision of the Civil: Structural and +rchitectural Design Criteria: 23132-DC-#001.


Sheet 33 of 5


<:<

Seismi+ or design purposes: the site is classified for the pro%ect as 6BC Tone #: 'ut the origin of seis"icit( is the su'duction ?instead of transduction@ of the $acific $late. )ost "a%or earthua,es occur offshore ith intensities up to 4. Richter. Seis"ic ris,: defined as the pro'a'ilit( of occurrence of an earthua,e of "agnitude 8. Richter ith an acceleration greater than or eual to 0.1 g during 1 (ear: is assu"ed at 20M ith a return period of 30 (ears. Significant earth tre"ors of intensit( up to *. Richter occur ever( #-10 (ears. +nother source of vi'ration at the "ine areas is 'lasting. !his has "ini"al effects.

;:-

E"6IRO"ME"AL CRIERIA See nviron"ental I"pact +ssess"ent report for the Collahuasi $ro%ect filed ith CR)+ on Qune 22: 155

0:-

ECO"OMIC CRIERIA 0:%

E&alua)ion o1 Al)erna)i&es valuation of "a%or process alternatives are e>cluded fro" this or,.

0:3

Cos)/2ene1i) Anal4sis Cost-'enefit engineering choices ill 'e 'ased on capital and operating cost para"eters developed in the 'asic engineering feasi'ilit( stud(. !he unit costs are presented in the inal Report.: +ppendices  and 7.

5:-

DESI!" CRIERIA RE#ERE"CE LIS eneral Specification D-01 Rev.1L Collahuasi Copper $ro%ect easi'ilit( Stud(. C;a. )inera Do

Sheet 3# of 5

Design Criteria for Sulphide Concentrator & Infrastructure 23132-DB-1001 Rev. 1

6nits =:-

Fo"inal

Design

Code

PRODUCIO" SUMMAR7 !he overall "aterial 'alance and process design calculations for the concentrator are 'ased on a no"inal throughput of *0:000 dr( tHd of ore: or a no"inal throughput of 2:884 tHh 'ased on 50 percent availa'ilit(. =:%

Annual Pro'u+)ion Parame)ers Run-of-"ine copper ore: average Concentrate production

=:3

tH(

21 500 000



tH(

48* 000



O&erall 2alan+e eed to pri"ar( crushing circuit: dr( eed to S+ "ills: dr( eed to pri"ar( c(clones: dr( eed to rougher flotation: dr( Rougher concentrate: dr( eed to sand flotation: dr( Sand concentrate eed to first cleaner flotation: dr( eed to cleaner-scavenger flotation: dr( Cleaner-scavenger concentrate: dr( eed to second cleaner flotation: dr( eed to concentrate pipeline: dr( eed to concentrate filters and storage: dr( Coarse tailings product: dr( ine tailings product: dr(

=:9

+

Opera)in* S+he'ule

tHh tHh tHh tHh tHh tHh tHh tHh

3 12 2 884 11 112 2 884 353 8*0 #* 42

 4*0 3 #82 13 444 3 #82 45 5#5 *4 1 288

       

tHh

4*

485



tHh

24

345



tHh tHh

2** 111

354 1#4

 

tHh tHh tHh

111 *#0 2 028

1#4 400 2 33

  


6nits 4.3.1

M

40

+

d d no. h h

3* 8 2 12

+ + + + 

M

50

+

d d no. h h

3* 8 2 12

+ + + + 

50

+

3* 2 12

+ + + 

50

+

3* 2 12

+ + + 

100

+

8 44#

8 44#

iltering and Storage +vaila'ilit( M $lant operating schedule Da(s per (ear dH( Shifts per da( no. 7ours per shift h 7our per (ear h

4.3.

8 004

$ipeline +vaila'ilit( M $lant operating schedule Da(s per (ear dH( Shifts per da( no. 7ours per shift h 7our per (ear h

4.3.#

Code

Concentrator and !ailings Disposal +vaila'ilit( $lant operating schedule Da(s per (ear Da(s per ee, Shifts per da( 7ours per shift 7our per (ear

4.3.3

Design

Crushing +vaila'ilit( $lant operating schedule Da(s per (ear Da(s per ee, Shifts per da( 7ours per shift 7our per (ear

4.3.2

Fo"inal

8 44#

$oer /ine +vaila'ilit( Schedule

M


6nits

Fo"inal

Da(s per (ear dH( 7ours per da( hHd =:<

Design 3* 2#

Code + +

Desi*n #a+)ors 1or E(uipmen) !he folloing design factors are applied in general for the euip"ent siing U Fo"inal ?or Balance@ flo rate  design factor G design flo rate V $ri"ar( crushing Coarse ore conve(ing rinding circuit "aterial handling Rougher flotation inal "ill tailings Rougher concentrate Regrind Cleaner flotation Cleaner scavenger flotation Concentrate thic,ening at the "ine Concentrate slurr( storage at the "ine Concentrate slurr( pipeline Concentrate thic,ening at the port Concentrate slurr( storage at the port iltration

1.2 1.2 1.2 1.2 1.2 1.0 1.0 1.0 1.0 1.0 1.0 1.2 1.2 1.2 1.2

roth actors for pu"ps selection and gravit( launder siing Rougher concentrate irst cleaner concentrate irst cleaner concentrate Second cleaner concentrate Scavenger concentrate Sand flotation concentrate Regrind circuit Rougher tailings Cleaner scavenger tailings Second cleaner tailings Sand flotation tailings

+

C 2.0 2.0 2.0 2.0 2.0 2.0 1. 1.2 1.2 1.2 1.2


6nits .:-

Fo"inal

CHARACERISICS O# PROCESS #EED MAERIALS A"D .:%

Design

Code

CO"SUMA2LES

Ore Classi1i+a)ion 5.1.1

)ineralog( of $rocess Ra )aterials

+

)a%or t(pes

Strong secondar( ?SC@ 9ea, secondar( on p(rite ?SC$@ 9ea, secondar( on chalcop(rite ?SCD@ $ri"ar( ?$RI@

Su't(pes ithin )a%or t(pe

6%ina +ndesite ?+FD@ Rh(olite ?RI@ $orph(r( 6%ina ?$6Q@ Rosario +ndesite ?+FD@ Rh(olite ?RI@ $orph(r( Ines ?$IF@ $orph(r( Rosario ?$R@ $orph(r( Collahuasi ?$C@

5.1.2

Che"ical Co"position of R) re A&era*e Ore !ra'e 6%ina deposit ?sulphide ore@ Cu ?total@ t M

1.8*

+

Rosario deposit ?sulphide ore@ Cu ?total@ t M

1.12

+

Mill Ore !ra'e 6%ina deposit ?sulphide ore@ Kear Co""issioning 1.*0 1 2.12 2 3 1.82 #  1.5 * 1.#1

MCu ?total@

Rosario deposit ?sulphide ore@ Kear

MCu ?total@

1.4# 1.88

+


6nits

5.1.3

* 8 4 5 10 11 12 13 1# 1 1* - 14 15 - 21 21 - 2

Fo"inal

Design

Code

2.40

2.40 - 2.4

+

2.

0.-3.0

+

1.#4 1.33 1.1 1.22 1.1* 1.05 1.2* 1.0* 1.13 1.18 1.04 1.1 0.5*

ther $roperties Specific gravit(: average H re "oisture content

t M

R) ore sie distri'ution )a>i"u" lu"p sie: "" Design percent passing 200 "" +'rasion inde> 6%ina Rosario I"pact or, inde>: 6%ina Rosario Rod "ill or, inde>: 6%ina Rosario Ball "ill or, inde>: 6%ina Rosario

 2 000 2 + 0.0#*4 - 0.1418 0.0#51 - 0.2##2 +

,9hHst ,9hHst

2.2 - *.3 #.5 - 4. +

,9hHst ,9hHst

4.4 - 13.8 5.* - 12.# +

,9hHst ,9hHst

Corrected autogenous or, inde> ?)ac$herson $rocedure@ 6%ina ,9hHst Rosario ,9hHst

8.5 - 1#.4 8.* - 11.#

+ 5.# - 1#.2 4.1 - 12.4


6nits

.:3

Fo"inal

Design

Code

Rea*en)s 5.2.1

/i"e !(pe

Burnt li"e

Bul, densit(: +ngle of repose: 5.2.2

,gH" 3

440-5*0

B

degrees

0

B

)eth(l Iso'ut(l Car'inol ?)IBC@ or"

/iuid

Densit(

,gH"3

403

B

c$ at 2WC

3.4

B

iscosit(: 5.2.3

or"

/iuid

Densit(

,gH"3

B 543

B

12

B

S 323 ?eth(l-isoprop(l thiocar'a"ate@ or"

/iuid

Densit(

,gH"3

iscosit( c$ at 2WC 5.2.

B

Dofroth 20

iscosit(c$ at 2WC 5.2.#

B

B 55#

B

254

B

S-113 ?isoprop(l >anthate@ or"

Solid

Densit(

,gH"3

B 1 30

B


6nits 5.2.*

5.2.8

or"

Solid

Densit(

,gH"3

Code

B 1 30

B

locculant - !ailings !hic,ener +nionic pol(acr(la"ide

or" Densit(

D

Dr(

B

,gH"3

*0

B

t

0 0 2* 214 21 00 300 #0

+ + + + + + + +

MI"E %-:%

Mine E(uipmen) Rotar( Drill lectric Shovel - aste lectric Shovel - ore 7aulage truc, ront-end /oader !rac, Doer )otor rader 9heel Doer

%%:-

Design

S-11# ?iso'ut(l >anthate@

!(pe

%-:-

Fo"inal

3

" "3 t "3 hp hp hp

SULPHIDE PLA" %%:%

Crushin* an' Con&e4in* / U>ina

Roc, 'rea,er t(pe

7(draulic

C

(rator( "" tHh

2 000  4*0

C C D

# 1**



Sulphide crusher open side setting ""

200

D

Sulphide dr( crushed ore 'ul, densit( olu"e calculations ,gH" 3

1 *00



Crusher t(pe eed sie "a>i"u" Crusher design capacit(: dr( Sulphide crushing rate: dr(

tHh

3 12


6nits ,gH" 3

9eight calculations Sulphide product sie distri'ution )esh Sie ?""@

Code

2 040



M $assing ine 100 58 53 48 42 8# * 0 #3

Crusher discharge conve(or: 2.M "oisture

tHh

3 20

4 20



Coarse ore conve(or: 2.M "oisture

tHh

3 20

4 20



Crushin* an' Con&e4in* / Rosario #u)ureB Coarse ore conve(or: 2.M "oisture tHh

%%:9

Design

 Coarse 100 5* 50 84 * #* 2 20 1

30 225 12 102 8* 1 2 15 13

%%:3

Fo"inal

4 20



Coarse Ore S)ora*e an' Re+laim Stoc,pile feed conve(or: 2.M "oisture Design )a>i"u" +ngle of repose +ngle of dradon:

tHh

3 20

degrees degrees

#2

4 20 4 20



38 #

B D

Stoc,pile total capacit(

t

150 000

+

Stoc,pile live capacit(

t

*0 000

+

Fu"'er of reclai" tunnels

2

C

Fu"'er of reclai" 'elt feeders ?per S+ "ill@

3

C

1 83* 1 83*

 

Reclai" rate: dr(? per S+ "ill@ Belt feeder: dr( ?per S+ "ill@ Belt feeder drive

tHh tHh

1 345 #*3

aria'le speed


6nits

S+ "ill feed conve(or: dr( ?includes rec(cle pe''les@ %%:<

Fo"inal

Design

Code

tHh

1 83*

2 #30



tHh

2 884

3 #82



tHh

1 345

1 83*



Primar4 !rin'in* Cir+ui) Circuit feed rate ?total@: dr( 11.#.1

S+ )ill Circuit S+ "ill feed ?each@: dr(

S+ "ill tro""el undersie 100M passing: "" 5M passing "" 40M passing "" Design specific poer Kear 1 Kear 2 - 3 Kear # - 8 Kear 4 - 2

 15 12 # +

,9hHt ,9hHt ,9hHt ,9hHt

S+ "ill design Fu"'er )ill poer design factor eed rate ?each: for euip"ent design@ tHh Specific poer ,9hHt Connected poer ?each: pinion shaft@ ,9 Critical speed M Drive !otal "ill volu"e: "a>i"u" M Ball charge: "a>i"u" M eed densit( M solids )a,eup 'all sie ""

3.4# 3.5 3.5# .0# C 2 1.10 1 24 .0# 8 400 80-40 Ring gear 30 1 80 12


6nits

Fo"inal

S+ screen t(pe $e''le recirculation s(ste"

Design

Code

!ro""el

C

Conve(ors

C

$e''le crushing $rovide space for future pe''le crushing circuit. + 11.#.2

Ball )ill Circuit $roduct sie: 40M passing $roduct sie: M passing 8#

"icrons

11 - 10

+

"icrons

*0 - *

+

Design specific poer: ?$ 40 G 11 "icron@ Kear 1 ,9hHt Kear 2 - 3 ,9hHt Kear # - 8 ,9hHt

+ #.#1 .#3 .5*

Design specific poer: ?$ 40 G 138 "icron@ Kear 4-2 ,9hHt

+ *.0

Ball "ill design Fu"'er

C 2

)ill poer design factor eed rate ?each: for euip"ent design@ tHh Specific poer ,9hHt Connected poer ?each: pinion shaft@ ,9 Drive Critical speed: M Ball charge: ne liners M eed densit(: M solids )a,eup 'all sie ""

1.10 1 24 *.0 5 300 Ring gear *4 - 8 3 82 *3-8

Ball "ill screen t(pe C(clones Fu"'er of clusters per "ill Fu"'er of c(clones per cluster C(clone dia"eter C(clone feed pressure

!ro""el

C C

2

""

12 **0

,$a

100

C(clone circulating load M ?underfloHoverflo ratio@

300

300

C


6nits

Fo"inal

C(clone feed pu"ps Fu"'er per "ill: operatingHstand'( Drive %%:;

Design

aria'le Speed

Code

2H0 C C

#lo)a)ion Cir+ui) 11..1

eneral lotation 7ead grade: total copper 6%ina ?average@ Rosario ?average@ 6%ina ?)a>i"u" @ verall total copper recover( )ini"u" )a>i"u"

+ 1.8* 1.12 2.*0

M M M

)etallurgical 'alance para"eters eed grade: M Cu Concentrate grade: M Cu Concentrate Cu recover( M 11..2

52 4 53

+

C 2.0 #* 52

Rougher lotation Rougher flotation feed eed rate tHh rade MCu Solids specific gravit( H Densit( M Solids

2884 2.0 2.40 30

lotation ti"e: "inutes ?1M air holdup volu"e@ Cell sie

"3

3 #82

2-3

+ + + +

22

+

128.

C

Rougher concentrate rade M Cu Section recover(: Cu tM Solids specific gravit( H Densit( at froth lip M Solids Densit( at launder

13.0

+

51.4

+

3.13

+

2*.0

2-30




6nits discharge 11..3

M Solids

Fo"inal

Design

2.0

Code 

Regrind eed rate Rougher concentrate Sand concentrate Cleaner-scavenger concentrate !otal

tHh tHh

353 #*

45 *4

 

tHh tHh

25 *54

345 10#*

 

?$oer 'ased on grinding rougher plus sand flotation concentrate@ Bond or, inde>

,9hHt

12



10

+

38

+

10.#



* 433



80

D

# 843



!oer "ill 

+ +

*0

530  - * 34

D  B

M

10



eed sie: 40M passing "icrons $roduct sie: 40M passing "icrons Specific poer consu"ption: regrind feed ,9hHt Ball "ill poer: total

,9h

fficienc( factor for toer "illsM !oer "ill poer: total

,9h

Regrind "ill design !(pe Fu"'er of "ills Connected poer: each ,9 eed densit(: M solids )a,eup 'all sie "" Regrind c(clone circulating load: ?underfloH overflo ratio@ C(clones Fu"'er of clusters Fu"'er of c(clones per cluster C(clone dia"eter "" C(clone feed pressure ,$a C(clone feed pu"ps

C 2 2# 340 100


6nits

Fo"inal

Fu"'er total plant: operatingHstand'( Drive

Code

2H1 aria'le Speed

C C

1H0 i>ed Speed

C

1 288

1*-20

   +

10

+

128.

C

Regrind "ill feed pu"p Fu"'er per "ill: operating Hstand'( Drive 11..#

Design

irst Cleaner lotation irst cleaner flotation feed eed rate tHh rade MCu Solids specific gravit( H Densit( M Solids

42 13.5 3.1* 14.0


"3

irst cleaner concentrate rade M Cu Section recover(: Cu tM Solids specific gravit( H Densit( at froth lipM Solids Densit( at launder discharge 11..

3#.# 88.2

+ +

#.0# 28.8 M Solids

+  

2-30 2.0

Second Cleaner lotation Second cleaner flotation feed eed rate tHh rade MCu Solids specific gravit( H Densit( M Solids

2** 3#.# #.0# 18.

lotation ti"e: "inutes ?1M air holdup volu"e@ Cell sie : colu"n ?9 > / > 7@

"

354

13-18

   +

1

+

2>4>11

C

20-2 2.0

+ + +  

Second cleaner concentrate rade: M Cu Section recover(: Cu tM Solids specific gravit( H Densit( at froth lipM Solids Densit( at launder discharge

#*.0 *.0 #.40 2.0 M Solids


6nits

11..*

Fo"inal

Design

Code

Cleaner Scavenger lotation Cleaner Scavenger flotation feed eed rate tHh eed grade MCu Solids specific gravit( H Densit( M Solids

4* #.*0 2.48 1.

485


"3

13-18

   +

1

+

128.

C

Cleaner scavenger concentrate rade M Cu Section recover(: Cu tM Solids specific gravit( H Densit( at froth lipM Solids Densit( at launder discharge 11..8

10.0 5*.1

+ +

3.03 21.0 M Solids

+  

14-22 20.0

!ailings Retreat"ent C(clones Fu"'er of clusters Fu"'er of c(clones per cluster C(clone dia"eter "" C(clone feed pressure,$a

C 2 12 **0 100

C(clone feed pu"ps Fu"'er: operatingHstand'( Drive

Sand flotation feed eed rate tHh rade MCu Solids specific gravit( H eed densit( M Solids


8*0 0.30 2.8* #.0

lotation ti"e: "inutes ?1M air holdup volu"e@ Cell sie Cleaner scavenger concentrate

"3

5#5

C C

#0-0

   +

10

+

128.

C


6nits rade: M Cu Section recover(: Cu tM Solids specific gravit( H Densit( at froth lipM Solids Densit( at launder discharge %%:0

Fo"inal

Design

Code

2. 0.0 2.41 2*.0 M Solids

2#-2* 2.0

+ + +  

,gHt ore

2

2

+

tHd

120

10



Rea*en) Han'lin* an' Dis)ri@u)ion 11.*.1

/i"e Consu"ption

Deliver( $neu"atic 2-t truc, Storage Sla,ing Rate: dr( Rate: dr( Scheduled ffective +vaila'ilit( )il, of li"e Densit( Storage 11.*.2

d

8

+ 

tHd tHh hHd hHd M

120 12 12 10 43

10 1

M Solids h

10

10 - 1 2#

 +

)eth(l Iso'ut(l Car'inol ?)IBC@ Consu"ption rougher float sand float average:

gHt ore gHt ore gHt ore

12 18 25

38

+ + +

,gHd

1 8#0

2 88



15-"3 self-unloading road tan,er

Deliver( Storage Distri'ution Strength solution: 11.*.3

C

d

30

M

100

gHt ore

*

B +

B

Dofroth 20 Consu"ption

14.

+


6nits

Fo"inal

,gHd Deliver(

3*0

d 100

+ B

gHt ore

1

1

+

,gHd

500

1 12



Deliver(

!an, !ruc,

Storage

d

Distri'ution Strength solutionM

B 30

100

+ B

S-113 ?isoprop(l >anthate@ Consu"ption

Deliver( Storage Bul, )i>ed

gHt ore

*0

*0

+

,gHd

3 *00

# 00



Returna'le Bags ?1 t@ d d

B 30 2

+ B


10

S-11# ?iso'ut(l >anthate@ Consu"ption gHt ore

1#

1#

+

,gHd

4#0

1 00



Deliver( Storage Bul, )i>ed Distri'ution Strength solution 11.*.8



S 323 ?eth(l-isoprop(l thiocar'a"ate@ Consu"ption

11.*.*

Code

B 30


11.*.

1 344

15-"3 self-unloading road tan,er

Storage

11.*.#

Design

B

Returna'le Bags ?1 t@

d d

M

locculant - !ailings !hic,ener

B

30 2

10

+ B

B


6nits

!(pe Consu"ption

Design

+nionic pol(acr(la"ide

Code

D

gHt ore

#0

#0

+

,gHd

2 #00

3 000



Deliver(

!ruc,

Storage: 'ul,

d

B 30

+

$reparation Strength solutionM

0.3

B

Distri'ution Strength solution:M

0.0

B

inal dilution at thic,ener feed ell %%:5

Fo"inal

vHv

101

B

*# 000

40 000



#4 *00

*0 400



# 0.12 0.05

# #3 3 0.08 0.0

    

0

#-

D

0

#-



ailin*s Disposal an' ,a)er Re+laim 11.8.1

!ailings !hic,ener eed rate: ?2# h continuous 'asis@ !otal tailings: dr( tHd ine tailings: dr(

tHd

Installed Fu"'er Dia"eter " perating 6nit area ?fine tailings@" 2HtHd 6nit area ?total tailings@" 2HtHd 6nderflo densit( 11.8.2

M Solids

!ailings /aunder ?ravit( lo@ Densit(

M Solids

Slurr( rheolog( 11.8.3

)odeled as Bingha" $lastic

+

$u"ped Coarse !ailings $roduct Sie Distri'ution: M passing 8# C(clones

"icrons

14-20

 C


6nits Fu"'er of clusters Fu"'er of c(clones per cluster C(clone dia"eter C(clone feed pressure

Code

12 ""

340

,$a

100

C(clone feed pu"ps Fu"'er: operatingHstand'( Drive


*

-*

C C



Coarse tailings pu"p !(pe $lunger or piston diaphrag" Fu"'er: operating Hstand'( 2H1 Drive aria'le Speed

D

Slurr( rheolog(

Coarse "aterial ithout fines Bingha" $lastic at high M solids

+

C(cloned tailings for da" and fine tailings deposition upstrea" of i"pound"ent area.

C

!ailings Disposal Da" construction "ethod

11.8.

Design 1

Densit( ?c(clone underflo@M Solids

11.8.#

Fo"inal

9ater Balance Inflo Coarse tailings ine tailings Runoff ?annual average@ !otal /osses Contained in voids of settled solids vaporation Saturation of e>isting ground Infiltration fro" da" Infiltration fro" 'asin !otal

"3Hh "3Hh

3# 2 028

#31 2 33

 

"3Hh "3Hh

#1 2 #13

#1 3 00

 

"3Hh "3Hh

433 *10

1 0#1 8*2

 

"3Hh "3Hh " 3Hh "3Hh

*1 1## 2#0 1 444

8* 140 300 2 35

   


%3:-

6nits

Fo"inal

Design

Code

Reclai"ed Seepage collection pond "3Hh !ailings pond 'arges " 3Hh !otal "3Hh

114 #08 2

1#8 #55 *#*

  

2 **#

3 55*



" HtHd

2 1.05

2 #3 1 0.3*

   

M Solids

*

*0-*

D

2 54# 1 550 - 2 330



CO"CE"RAE HA"DLI"! A"D PIPELI"E %3:%

Con+en)ra)e hi+eners eed rate: ?2# h continuous 'asis@ Installed Fu"'er Dia"eter perating 6nit area 6nderflo densit(

%3:3

tHd

" 2

Con+en)ra)e Slurr4 S)ora*e eed rate?2# h continuous 'asis@ " 3Hd Densit(

*0-*

D

h

#4

+

$u"p t(pe $lunger or piston diaphrag"

D

Design capacit(: ?8M availa'le volu"e@ %3:9

%3:<

M Solids

*

Con+en)ra)e Pumpin*

Con+en)ra)e Pipeline an' Choe S)a)ions Solids specific gravit(

H

#.4

+

Solids sie: "icrons 40M passing 50M passing 100 M passing

tM tM tM

28 - #4 8# 10

+ + D

gH/

!B+

+

Solution anal(sis

Slurr( rheolog( )odeled as Bingha" $lastic

D


6nits Critical deposition velocit(: Slurr( operating conditions Densit( Solids Slurr( )a>i"u" operating condition Densit( Solids Slurr(

Fo"inal

"Hs

MSolids tHh 3 " Hh

.4 111 111

MSolids tHh "3Hh

$ipeline dia"eter .D.

""

Design

Code

1.-1.*



*#.4 1#4 111

 

* 1#4 111

 

184

D

$ipeline t(pe 7D$-lined car'on steel ?6nited or )iller s(ste"@

D

Fu"'er of pipelines

%9:-

1

+

2 **

3 0



" 2 " HtHd

0.#

1 #3 0.#0

  

M Solids

*

*0-*

D

POR #ACILIIES %9:%

Con+en)ra)e hi+eners eed rate: ?2# h continuous 'asis@ Installed Fu"'er Dia"eter 6nit area 6nderflo densit(

%9:3

Con+en)ra)e Slurr4 S)ora*e

tHd


6nits

Fo"inal

eed rate?2# h continuous 'asis@ " 3Hd Densit(

M Solids

Design capacit(: ?8M availa'le volu"e@ %9:9

2 *0 1 550 - 2 330 *

h

Ca,e "oisture



*0-*

D

2#

+

tHd

2 354

3 158



tM

5

4. - 5

+

3 2 or 3 8 80 11 82  000

C C      

ilters !(pe$late and fra"e pressure filter Fu"'er installed Fu"'er operating 2 +vaila'ilit( M Capacit(: each filter: dr( tHh +ir de"and: averageHfilter n" 3Ht +ir de"and: pea,Hfilter n" 3H"in Cloth life c(cles

2

Con+en)ra)e #il)ra)e rea)men) an' Disposal Disposal "ethod

vaporation ponds

+

$ota'le ater treat"ent Reverse os"osis %9:;

Code

Con+en)ra)e Dea)erin* eed rate: dr( ?total plant@

%9:<

Design

+

Con+en)ra)e S)ora*e an' Re+laim /ive capacit( eed rate +ngle of repose Bul, densit(

t tHd

8 000

+

3 158



#0



2 *#0

2 440



1 20

1 30

C

2 354

degree ,gH" 3

Reclai"er t(pe $ortal scraper reclai"er Reclai" rate: et %9:0

tHh

,har1 Concentrate carrier sie

d"t

10 000 - *0 000

B


6nits %9:5

Design

Code

Shiploa'er !(pe Shiploading rate: et

%<:-

Fo"inal

!B+ tHh

1 20

1 30

C

UILIIES %<:%

Poer Line $oer ill 'e supplied fro" the northern grid of Siste"a Interconectado del Forte rande ?SIF@ via a ne poer line to a ne su'station to 'e erected at the process plant area.

%<:3

Poer Dis)ri@u)ion oltage level at line

,

220

+

$ea, load for line

)9

120

+

6lti"ate load for line

)9

10

+

,

23

+

$lant distri'ution voltage


6nits %<:9

Fo"inal

Design

Code

,a)er Suppl4 an' Dis)ri@u)ion 1#.3.1

9ater Source

+

+ll fresh ater ill 'e supplied '( pipeline fro" ne ells at the Salar Coposa. $u"ps ill 'e installed in C)DIC-provided ells. + collection tan, and 'ooster pu"p station ill also 'e 'uilt at the Southern end of the ell field. +t the port: ater is reclai"ed fro" concentrate filtrate '( reverse os"osis and used as pota'le ater. 1#.3.2

resh 9ater +nal(sis !he folloing data are considered t(pical

1#.3.3

+nal(sis p7 Conductivit( 7C3 S# F3 Cl Fa P Ca )g Si2 Cu +s )n e ?total@

+ "ho pp" pp" pp" pp" pp" pp" pp" pp" pp" pp" pp" pp" pp"

8.# 1 002 1*8 22* .1 125 48 10 82 3* 81 0.02 0.08 0.13 0.21

+vaila'le flo

"3Hh

3 *00

Reclai" 9ater S(ste" !he reclai" ater s(ste" includes all thic,ener overflos and reclai" ater fro" the tailings 'asin. It is distri'uted to the grinding circuit: rougher flotation and tailings retreat"ent sand flotation.

1#.3.#

Cooling 9ater S(ste"


6nits

Fo"inal

Design

Code

Cooling ater ill 'e supplied to process unit operations fro" a closed loop dedicated cooling ater s(ste". resh ater ill 'e used to re"ove heat fro" the s(ste" using plate and fra"e heat e>changers. !he fresh ater discharge ill 'e utilied as "a,eup ater to the process plant. 1#.3.

Seal 9ater S(ste" ?$rocess $u"ps@ resh ater ill 'e used for seal ater on all process pu"ps.

1#.3.*

ire $rotection

+

resh ater is supplied to fire protection s(ste"s fro" the fresh ater storage reservoirs: hich have a designated reserve for the fire protection s(ste". Supple"ental storage s(ste"s ill 'e installed as reuired: e.g. tan, at truc, repair shop. 1#.3.8

$ota'le 9ater S(ste"s resh ater is treated to produce pota'le ater for the plant site and per"anent ca"p. or the plant site: ater is ta,en fro" the fresh ater reservoirs and for the per"anent ca"p it is pu"ped fro" a dedicated ell in the Coposa 'asin. Consu"ption /HdHperson 100 C

1#.3.4

9ater Storage resh ater reservoirs Fu"'er Storage volu"e per each !otal storage

"3 "3

ire ater reserve in fresh ater reservoirs olu"e each reservoir "3 !otal volu"e "3 $ota'le ater tan,

"3

Reclai" ater reservoir Fu"'er Storage volu"e per each "3 !otal storage "3 Fu"'er of co"part"ents per reservoir %<:<

Mis+ellaneous S4s)ems

2

C

30 000 *0 000

 +

1 #00 2 400

 B

1 00



1

C

30 000 30 000

C C

2

C

Process Design Criteria for Sulphide Concentrator & Infrastructure (Phaso 0)

Recommend Documents