MINE292-Lecture3-LiberationSeparationExtraction-2013

7/30/2019 MINE292-Lecture3-LiberationSeparationExtraction-2013

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LIBERATION, SEPARATION,

EXTRACTION

STAGE 1 - Blasting

STAGE 2 - Primary CrushingSTAGE 3 - Secondary Crushing

STAGE 4 - Grinding

STAGE 5 - Separation by sizeSTAGE 6 - Separation by values

STAGE 7 - Extraction of values


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What is an Ore?

Mineralized rock that can be mined/processed

At a time (temporal)

At a place (spatial)

At a profit (economic)

Waste rock can become an ore

Tailings can become an ore


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Drilling and Blasting

Create a top size suitable for transportation

Begin the process of Liberation

Factors

Drill hole diameter

Drill hole spacing and pattern

Explosive type

Delay system


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Drilling and Blasting


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Influence of Blasting Practices

S. Morrell and W. Valery, 2001. Influence of Feed Size on AG/SAG Mill Performance. SAG

2001, Vancouver, Canada, pp203-214

Morrell, S., 2003. The Influence of Feed Size on Autogenous and Semiautogenous Grinding and the

Role of Blasting in its Manipulation, Proc. 22nd International Mineral Processing Congress,

Eds.: L.Lorenzen and D.J. Bradshaw, p.526-533.


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Influence of Blasting Practices

S. Morrell and W. Valery, 2001. Influence of Feed Size on AG/SAG Mill Performance. SAG

2001, Vancouver, Canada, pp203-214

Morrell, S., 2003. The Influence of Feed Size on Autogenous and Semiautogenous Grinding and the

Role of Blasting in its Manipulation, Proc. 22nd International Mineral Processing Congress,

Eds.: L.Lorenzen and D.J. Bradshaw, p.526-533.


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Order of Processing

Blasting

Primary Crushing

Secondary Crushing

Grinding

Regrinding


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Crushing Machines


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Crushing Machines


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HPGRhigh-pressure grinding rolls


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High-Pressure Grinding Rolls


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Jaw Crusher


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Gyratory Crusher


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Symons Cone Crusher


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Cone Crusher Liners


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Vibrating Screen


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Secondary Crushing Plant


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Alternate Secondary Crushing Plant Design


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Open Circuit Crushing


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Grinding Mills


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Grinding Mills

Rod Millopened up for maintenance Ball Milloverflow type


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Grinding Mills

Bingham Canyon Grinding Mills


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Tube Mill


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Rod-Mill Central Peripheral Discharge


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Rod-Mill End Peripheral Discharge


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Rod-Mill Overflow Discharge


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Grinding and Cyanide LeachingMusslewhite Mine, Ontario


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Cyclo-Paks


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Spiral and Rake Classifiers


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Rake Classifier


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Rake Classifier


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Spiral Classifiers


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Cyclone and Particle Recovery


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Size Distribution of Soils


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Size Distribution Curves


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Bimodal Size Distribution


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Hydrocyclone


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Separator Partition Curves


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Stokes Law


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ABC Grinding Circuit


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Bond Work Index Formula


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Size Ranges in Separators


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Electronic Sorting


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Electrostatic Separation


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Cross-Belt Magnetic Separator


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Drum Magnetic Separator


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2-stage Drum Magnetic Separator


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Pinched Sluice


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Riffles in a Sluice


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Humphrey Spiraliron ore


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Particle Distribution in Spiral Trough


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Reichert Cone separator


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Fluid (pulp) Flow in a Cone Separator


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Shaking Table


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Statification on a Shaking Table


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Gold on a Shaking Table


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Jigging - stratification


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Centrifugal Concentrator

the Falcon


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Flotation Cell


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Flotation Cell Agitator Design


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Flotation Cell - Rotors

Separation Circ it


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Separation Circuit


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Copper Flotation Circuit

Downstream Processing


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Copper

Oxide copper treatment

Heap Leach Operation


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Heap Leach Operation

Installing a Plastic Membrane Liner


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Zaldivar Copper Heap Leach

Copper Downstream Processing


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CopperDownstream Processing

Kidd-Creek Smelter flowsheet

Copper Ores Concentrating


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Copper OresConcentrating

Simplest Copper Flotation Circuit



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Copper/Gold Flotation Circuit

Copper/Moly Ores Concentrating


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Copper/Moly OresConcentrating

Copper/Moly Flotation Circuit



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Multiple Sulfide Differential Flotation Circuit



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Mixed Oxide/Sulfide Copper Flotation Circuit



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Copper Oxide Processing to final metal



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Copper Oxide Processing - LPF



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T.O.R.C.O. Processing of Copper Ores

C A d C i h l


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Copper Anode Casting Wheel

Thickener tailings


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Thickener - tailings

Thickeners zones


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Thickeners - zones

Thickener Area Calculation


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ThickenerArea Calculation

where

A = thickener area (m2)

W= dry solids mass flow (tph)

F= liquid:solid ratio of feedD = liquid:solid ratio of discharge

R= settling rate (m/hr)

S= liquid S.G. (kg/L)

RS

)DF(W2A

Marine Tailing Disposal


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Marine Tailing Disposal

D Filt


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Drum Filters

Di k Fil


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Disk Filter

Pressure Filter Larox


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Pressure Filter - Larox


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Rotary Dryers


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Rotary Kiln

Mill Control Room


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Mill Control Room

Carlin Mine, Nevada


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Questions?

Dissolution of Gold in Cyanide


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Dissolution of Gold in Cyanide

Elsner's Equation


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Precipitation of Au from Solution



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g

Gold processing options



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g

Nickel

Typical Mine/Mill Treatment



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g

Nickel

Matte Separation processing



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g

Uranium Ore processing



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g

Coal processing



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g

Coal processing



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g

Coal processing



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g

Coal processing



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Coal processing

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