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Chemical Metallurgy > Chapter 2 - Leaching > Flashcards

Chapter 2 - Leaching Flashcards

1
Q

General principles

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2
Q

Leaching processes

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3
Q

Leaching reactions (1)

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4
Q

Leaching reactions (2)

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5
Q

Lixiviants

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6
Q

Sulphuric vs Hydrochloric Acid

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7
Q

Pretreatment

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8
Q

Roasting of sulphide minerals

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9
Q

Rotary kiln

scheme

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10
Q

Rotary kiln

general

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11
Q

Fluidised bed reactor

scheme

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12
Q

Fluidised bed reactor

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13
Q

Leaching technologies

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14
Q

Processing routes for leaching of various ore grades

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15
Q

In-situ leaching (1)

general

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16
Q

In-situ leaching

scheme theory

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17
Q

In-situ leaching

scheme practical

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18
Q

In-situ leaching

advantages vs disadvantages

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19
Q

Dump leaching (1)

general

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20
Q

Dump leaching

scheme

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21
Q

Heap leaching (1)

general

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22
Q

Heap leaching (2)

which minerals?

vs dump leaching?

particle size distribution

A
23
Q

Heap leaching (3)

scheme

A
24
Q

Heap leaching (4)

slope

A
25
Q

Vat leaching (1)

general

A
26
Q

Vat leaching (2)

advantages vs disadvantages

A
27
Q

Vat leaching (4)

plant

A
28
Q

Vat leaching (5)

counter-current

A
29
Q

Tank leaching (1)

general

A
30
Q

Tank leaching (2)

pachuca

A
31
Q

Tank versus vat leaching

A
32
Q

Pressure leaching (1)

general

A
33
Q

Ammoniacal leaching (1)

general

A
34
Q

Ammoniacal leaching (2)

modes

A
35
Q

Ammoniacal leaching (3)

distribution

A
36
Q

Sherritt Gordon process (1)

general

A
37
Q

Sherritt Gordon process (2): general flowsheet

A
38
Q

Arbiter process

A
39
Q

Bioleaching (1)

general

A
40
Q

Bioleaching (2)

molecules

A
41
Q

Bioleaching (3)

bacteria

A
42
Q

Bioleaching (4)

difficulties

modes

A
43
Q

Acid mine drainage (AMD) (1)

genneral

A
44
Q

Metal recovery (1)

general

A
45
Q

Metal recovery (2)

flowsheet

A
46
Q

Cementation (1)

general

A
47
Q

Cementation (3)

steps & limitations

A
48
Q

Cementation (4)

Au&Ag

Zn

A
49
Q

Reduction by hydrogen gas

A
50
Q

Electrowinning (1)

general

A
51
Q

Electrowinning (2)

plant

A
52
Q

Electrorefining (1)

general

A
53
Q

Electrorefining (2)

practical

A
54
Q

Adsorption onto activated carbon

A

Chemical Metallurgy (3 decks)

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