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LIBERATION, SEPARATION, EXTRACTION

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Title: LIBERATION, SEPARATION, EXTRACTION


1
LIBERATION, SEPARATION, EXTRACTION
  • STAGE 1 - Blasting
  • STAGE 2 - Primary Crushing
  • STAGE 3 - Secondary Crushing
  • STAGE 4 - Grinding
  • STAGE 5 - Separation by size
  • STAGE 6 - Separation by values
  • STAGE 7 - Extraction of values

2
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

3
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

4
Drilling and Blasting
5
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.

6
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.

7
Order of Processing
Blasting
Primary Crushing
Secondary Crushing
Grinding
Regrinding
8
Crushing Machines
9
Crushing Machines
10
HPGR high-pressure grinding rolls
11
Jaw Crusher
12
Gyratory Crusher
13
Symons Cone Crusher
14
Cone Crusher Liners
15
Vibrating Screen
16
Secondary Crushing Plant
17
Alternate Secondary Crushing Plant Design
18
Open Circuit Crushing
19
Grinding Mills
20
Grinding Mills
  • Rod Mill opened up for maintenance
    Ball Mill overflow type

21
Conical Ball-Mill
22
Grinding Mills
Bingham Canyon Grinding Mills
23
Tube Mill
24
Rod-Mill Central Peripheral Discharge
25
Rod-Mill End Peripheral Discharge
26
Rod-Mill Overflow Discharge
27
Grinding and Cyanide Leaching
Musslewhite Mine, Ontario
28
Cyclo-Paks
29
Spiral and Rake Classifiers
30
Rake Classifier
31
Rake Classifier
32
Spiral Classifiers
33
Cyclone and Particle Recovery
34
Size Distribution of Soils
35
Size Distribution Curves
36
Bimodal Size Distribution
37
(No Transcript)
38
Hydrocyclone
39
Separator Partition Curves
40
Stokes Law
41
ABC Grinding Circuit
42
Bond Work Index Formula
43
Size Ranges in Separators
44
Electronic Sorting
45
Electrostatic Separation
46
Cross-Belt Magnetic Separator
47
Drum Magnetic Separator
48
2-stage Drum Magnetic Separator
49
Pinched Sluice
50
Riffles in a Sluice
51
Humphrey Spiral iron ore
52
Particle Distribution in Spiral Trough
53
Reichert Cone separator
54
Fluid (pulp) Flow in a Cone Separator
55
Shaking Table
56
Statification on a Shaking Table
57
Gold on a Shaking Table
58
Jigging - stratification
59
Centrifugal Concentrator the Falcon
60
Flotation Cell
61
Flotation Cell Agitator Design
62
Flotation Cell - Rotors
63
Separation Circuit
64
Copper Flotation Circuit
65
Downstream Processing
  • Copper
  • Oxide copper treatment

66
Heap Leach Operation
Installing a Plastic Membrane Liner
67
Zaldivar Copper Heap Leach
68
Downstream Processing
  • Complex Copper Sulfide ore
  • Multiple-product Circuit

69
Downstream Processing
  • Copper
  • copper/molybdenum ore

70
Downstream Processing
  • Copper
  • Mixed Sulfide/Oxide Treatment

71
Downstream Processing
  • Copper/Gold ore
  • Typical Mine/Mill Treatment

72
Copper Anode Casting Wheel
73
Thickener - tailings
74
Marine Tailing Disposal
75
Drum Filters
76
Disk Filter
77
Pressure Filter - Larox
78
Rotary Dryers
79
Rotary Kiln
80
Mill Control Room
Carlin Mine, Nevada
81
Dissolution of Gold in CyanideElsner's Equation
82
Precipitation of Au from Solution
83
Downstream Processing
  • Gold processing options

84
Gold Flakes
85
Smelting Gold
Campbell Mine, Ontario
86
Pouring Slag
Musslewhite Mine, Ontario
87
Pouring Gold Bullion Bars
88
What its all about!
Gold Bullion
89
Downstream Processing
  • Nickel
  • Typical Mine/Mill Treatment

90
Downstream Processing
  • Nickel
  • Matte Separation processing

91
Downstream Processing
  • Uranium Ore processing

92
Downstream Processing
  • Coal processing

93
Downstream Processing
  • Coal processing

94
Downstream Processing
  • Coal processing

95
Downstream Processing
  • Coal processing

96
Downstream Processing
  • Coal processing
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