080121-08MN006-Sabina Hackett River Project Proposal ... - NIRB

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Project Descriptionprefeasibility study alternate process options and conditions will be explored and evaluated inorder to optimize process design.The ore processing plant will be a conventional grinding and flotation plant which produces zinc,copper and lead concentrates. Most of the silver and gold value will report to copper concentratewith a small portion reporting to the lead concentrate.A preliminary simplified process flowsheet is shown in Figure 2.5-1.2.5.2 Crushing and GrindingThe Run of Mine ore will be crushed in a primary crusher to generate a feed for the grindingcircuit. The crushed material will be conveyed to a crushed ore storage facility from whence itwill be reclaimed continuously to feed the grinding circuit. The grinding circuit will consist of aSAG mill in close circuit with a pebble crusher followed by ball mills in close circuit withcyclone classifiers. The ore leaving the grinding circuit will have a size of about 80 percentminus 75 micron.2.5.3 Copper-Lead FlotationThe overflow of the cyclone from the grinding circuit is pumped to the first copper-lead flotationconditioning tank, where lime, zinc sulphate and sodium cyanide are added to condition the oreso that copper and lead and silver sulphide minerals can be separated from zinc and ironsulphides and waste rock.The overflow of this conditioning tank flows to a second conditioning tank where flotationcollectors are added. During the course of the prefeasibility study metallurgical test workalternate reagent schemes will be explored.The conditioned slurry flows to a bank of copper-lead rougher flotation cells where a copper-leadbulk rougher concentrate is generated.The copper-lead rougher concentrate needs further grinding to liberate individual sulphideminerals from each other and is therefore fed to a regrinding circuit consisting of a ball millwhich is in close circuit with cyclones.The reground bulk copper lead concentrate will be cleaned in a three stage bulk flotation cleaningcircuit to remove unwanted minerals; the third cleaner flotation concentrate is fed to the copperleadseparation circuit.The copper lead separation circuit feed is conditioned with a small amount of potassiumdichromate to depress the lead minerals in the subsequent flotation stage in which the copperminerals are floated away from the rest and subjected to two more cleaning stages.The tailing from the copper flotation is the lead concentrate.MIBC is the only frother used in both copper-lead and zinc flotation circuits.January 2008 Hackett River Project – Project Proposal Sabina Silver CorporationReport Version B.1 2–21 Rescan Environmental Services Ltd. (Proj. #833-2)
AI No. a18252fJob No. 833-228/11/2007-12:30pmRun of Mine OreWater RecycleCoarse Ore BinFeederCopper-LeadRougher FlotationZinc RougherFlotationTailingsThickenerJaw CrusherRegrind Ball MillRegrind Ball MillCrushed Ore StockpileCyclonesCyclonesTailings Disposal AreaSAG MillPebble CrusherCopper-LeadCleaner FlotationZinc CleanerFlotationZinc CleanerScavengerScreenoversizeCu-Pb SeparationBall MillCopper CleaningCyclonesCopper ThickenerLead ThickenerZinc ThickenerCu Concentrate FilterPb Concentrate FilterZn Concentrate FilterCu Concentrate DryerPb Concentrate DryerZn Concentrate DryerCopper ConcentrateStorageLead ConcentrateStorageZinc ConcentrateStorageProcess Flow DiagramFIGURE 2.5-1TM
Page 2 and 3: EXECUTIVE SUMMARYTM
Page 4 and 5: Executive SummaryA summary of the p
Page 6 and 7: Executive SummaryIdentification of
Page 8 and 9: TABLE OF CONTENTSTM
Page 10 and 11: Table of Contents2.4.5.2 Boot Lake
Page 13 and 14: Table of Contents6.2.4 Birds ......
Page 15 and 16: Table of Contents9.1.3 Environmenta
Page 17 and 18: Table of Contents6.2-4 Species of F
Page 19 and 20: 1. INTRODUCTIONTM
Page 21 and 22: Ellice RiverAI No. a16725f-EISJob N
Page 23 and 24: Introduction• Working with the ap
Page 25 and 26: IntroductionTable 1.3-1Major Permit
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Page 32 and 33: gis no. 833-2-05 Job No. 833-2 Dece
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Page 36 and 37: Project Description2.4 Mine Plan2.4
Page 38 and 39: Project DescriptionThe Upper Rhyoli
Page 40 and 41: Project DescriptionA portion of the
Page 42 and 43: Project Descriptionthe first phase
Page 44 and 45: Project Description2.4.5.2 Boot Lak
Page 46 and 47: Project Descriptionaccessories and
Page 48 and 49: Project Descriptionneutralizing cal
Page 52 and 53: Project Description2.5.4 Zinc Flota
Page 54 and 55: Project Description2.6.1.5 Site Pow
Page 56 and 57: Project DescriptionThe electrical r
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Page 60 and 61: Project DescriptionTable 2.6-1Produ
Page 62 and 63: Project Description2.7.1.4 ClosureC
Page 64 and 65: Project DescriptionDrainage from op
Page 66 and 67: Project Descriptionmultiple-culvert
Page 68 and 69: Project Description2.8.3.1 Location
Page 70 and 71: Project DescriptionTypical bridge d
Page 72 and 73: Project Description2.8.4 Overland T
Page 74 and 75: Project Description• Desalination
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Page 78 and 79: Project Descriptionrequire bridge c
Page 80 and 81: 3. Training and Employment3.1 Human
Page 82 and 83: Training and Employment3.5 Workforc
Page 84 and 85: 4. Description of Public Involvemen
Page 86 and 87: Description of Public Involvement a
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Page 90 and 91: 5. Description of Traditional Knowl
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Description of the Existing Environ
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gis no. 833-6-25b Job No. 833-6 Oct
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7. IDENTIFICATION OF POTENTIAL ENVI
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Identification of Potential Environ
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8. IDENTIFICATION OF POTENTIALCUMUL
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Identification of Potential Cumulat
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9. ENVIRONMENTAL PLANSTM
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Environmental Plans• Occupational
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Environmental Plans• to restore l
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Environmental Plansbenefits of root
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ReferencesAdrian D’Hont, GNWT ENR
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ReferencesFriesen, B.F. 1975. Poten
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ReferencesMartens, H. E. 2007. Ekat
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ReferencesRescan Environmental Serv
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ReferencesWalton, L. R., H. D. Cluf
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A1 - PART 1 FORM (ENGLISH)TM
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A3 - PART 1 FORM (INUINNAQTUN)TM
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Non-Technical Project Proposal Desc
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ᐱᓕᕆᐊᒃᓴᒧᑦ (ᐅᔭᕋ
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A6 - NON-TECHNICAL DESCRIPTION (INU
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A7 - PART 2 FORM: PROJECT SPECIFICI
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Project Specific Information Requir
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Project Specific InformationThe fol
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APPENDIX BSITE PHOTOSTM
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Braided outflow of Cleaver Basin du
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Near shore habitat of Anne Lake. Th
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P.O. BOX 119GJOA HAVEN, NU X0B 1J0T
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Licence Number: 2BE-HAK0709LICENCE
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Licence Number: 2BE-HAK0709PART A:S
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Licence Number: 2BE-HAK0709hold all
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Licence Number: 2BE-HAK0709and plan
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Licence Number: 2BE-HAK07092. All a
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Licence Number: 2BE-HAK0709only in
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Licence Number: 2BE-HAK0709iii.the
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Effective June 16, 2006Map 1 - West
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Effective June 16, 2006Easternmost
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Effective June 16, 2006The planned
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Effective June 16, 2006Camp Inciner
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Effective June 16, 2006on the prope
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NIRB Screening Yes No If no, date
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Effective June 16, 2006Name (Print)
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