Chapter 2 - Leaching Flashcards by Thomas Hasiweder

Q

General principles

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Q

Leaching processes

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Q

Leaching reactions (1)

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Q

Leaching reactions (2)

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Q

Lixiviants

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Q

Sulphuric vs Hydrochloric Acid

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Q

Pretreatment

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Q

Roasting of sulphide minerals

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Q

Rotary kiln

scheme

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Q

Rotary kiln

general

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Q

Fluidised bed reactor

scheme

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Q

Fluidised bed reactor

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Q

Leaching technologies

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Q

Processing routes for leaching of various ore grades

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Q

In-situ leaching (1)

general

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Q

In-situ leaching

scheme theory

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Q

In-situ leaching

scheme practical

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Q

In-situ leaching

advantages vs disadvantages

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Q

Dump leaching (1)

general

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Q

Dump leaching

scheme

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Q

Heap leaching (1)

general

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Q

Heap leaching (2)

which minerals?

vs dump leaching?

particle size distribution

A

Q

Heap leaching (3)

scheme

A

Q

Heap leaching (4)

slope

A

Q

Vat leaching (1)

general

A

Q

Vat leaching (2)

advantages vs disadvantages

A

Q

Vat leaching (4)

plant

A

Q

Vat leaching (5)

counter-current

A

Q

Tank leaching (1)

general

A

Q

Tank leaching (2)

pachuca

A

Q

Tank versus vat leaching

A

Q

Pressure leaching (1)

general

A

Q

Ammoniacal leaching (1)

general

A

Q

Ammoniacal leaching (2)

modes

A

Q

Ammoniacal leaching (3)

distribution

A

Q

Sherritt Gordon process (1)

general

A

Q

Sherritt Gordon process (2): general flowsheet

A

Q

Arbiter process

A

Q

Bioleaching (1)

general

A

Q

Bioleaching (2)

molecules

A

Q

Bioleaching (3)

bacteria

A

Q

Bioleaching (4)

difficulties

modes

A

Q

Acid mine drainage (AMD) (1)

genneral

A

Q

Metal recovery (1)

general

A

Q

Metal recovery (2)

flowsheet

A

Q

Cementation (1)

general

A

Q

Cementation (3)

steps & limitations

A

Q

Cementation (4)

Au&Ag

Zn

A

Q

Reduction by hydrogen gas

A

Q

Electrowinning (1)

general

A

Q

Electrowinning (2)

plant

A

Q

Electrorefining (1)

general

A

Q

Electrorefining (2)

practical

A

Q

Adsorption onto activated carbon

A