ototec mineral beneficiation
TRANSCRIPT
8/3/2019 Ototec Mineral Beneficiation
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Mineral Processing – Hydrometallurgy
Jaakko Leppinen
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Mineral Processing - Hydrometallurgy
BIO
CRUSHING GRINDING FLOTATION
HEAP LEACHINGOF ORE
ORE
SOLUTION PURIFICATION
METAL
CONCENTRATE
FLOTATION
TAILINGS
REDUCTION
LEACH RESIDUE
ORELEACHING
CONCENTRATELEACHING
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Mineral Processing - HydrometallurgyCRUSHING GRINDING FLOTATION
HEAP LEACHINGOF ORE
ORE
SOLUTION PURIFICATION
METAL
CONCENTRATE
FLOTATIONTAILINGS
REDUCTION
LEACH RESIDUE
ORELEACHING
CONCENTRATELEACHING
ENVIRONMENTAL ISSUES
ENERGY CONSUMPTION
WATER CONSUMPTION
CHEMICALS CONSUMPTION
TAILINGS MANAGEMENT
- SOLID RESIDUES
- WATER RECYCLING
- CHEMICALS
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Energy-efficient grinding technologyEfficiency in the grinding circuit
improves the overall performance ofthe concentrator.
Outotec provides Advanced ControlTools (ACT) for grinding circuits:
Desired particle size distribution isachieved and maintained.Throughput of the mill is optimized.
Outotec Skimmair® flotation
technology with grinding circuitThis ensures cost-effective, trouble-free and efficient operation ofgrinding circuit.
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Advanced Flotation technologyOutotec sets new standards for
Superior flotation performance:aeration, mixing and frothremoving.
Low operating and maintenancecosts and high equipmentreliability.
The wide range of available cellsizes, including the worldlargest operating flotation cell(TC- 300) permits plant designto be compact, economical andefficient.
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PRINCIPLE OF FLOTATION
CONCENTRATE
AIR
VALUABLE MINERALGANGUE MINERAL
ORE
FROMGRINDING
REAGENTS CONTROL OFCONDITIONS
FROTH WITH MINERALS
CONDITIONING STAGE FLOTATION STAGE
TAILING
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Leading Thickener Technology
The revolutionary SUPAFLO® High Rate Thickener concept has pioneered andredefined the methods of clarification and thickening around the world over the pastdecade.
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PRINCIPLE OF THICKENING
1 2
THICKENED UNDERFLOWTO TAILINGS
SOLUTIONTO RECYCLEORDOWNSTREAMPROCESS
SLURRY (SOLIDS + SOLUTION)
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PRINCIPLE OF PASTE THICKENING
ORDINARY THICKENER PASTE THICKENER
PASTE
THICKENED SLURRY
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Paste thickeningOutotec leads the industry with thickening
technologies for base metals and mineralsslurries, using:High rate,High Compression,Paste Thickeners.
Why use Paste Thickeners?To efficiently use water (water shortage inmine-sites).Underflow (paste/solids) does not requirefiltration.De-watering a slurry to a paste will lead toenvironmentally sustainable tailingsmanagement.Paste might be used for refilling degradedmine-areas (rehabilitation of mine-sites).
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Outotec hydrometallurgical processes
StandardHydroCopper ®
Zn hydrometallurgy (directzinc concentrate leach
technology)SX technology
Customer specific tailoredDifferent unit processes(known performance)Equipment selection
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The HydroCopper ®
- process• HydroCopper® is a chloride
medium based leaching process:• Copper concentrates.• Secondary copper raw materials.
• Operating at atmospheric pressureand T = 80 -100°C.
• Final product copper wire rod.• No concentrate transportation!!
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Customized process solutionWhat is a customized process
solution?Utilization of existing knowledgeand references.Adaptation of the knowledge fora customer specific case.
Customized process to treatcustomer specific raw material
LeachingImpurity controlResidue controlProduct control.
Environmental aspects takeninto account.
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Mine to metal concept
MINE CONCENTRATOR HydroCopper ® END PRODUCT
No concentrate transportation.Local sosio-economic impacts.
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Mine to Metal – Longer lifetime for mine
© O O j CMD 2008 S ill S i16
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SummaryOur customers want to produce metals competitively.
Only those producers survive in the long run who usesustainable technologies.Profitability and environmentally sound technologies
can and must go hand in hand.Technology development is the key.It is important to evaluate the whole production chain,
from ore to metal.
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