Pyrometallurgy: Roasting, Smelting, Refining & Electrowinning

Pyrometallurgy: Roasting, Smelting, Refining & Electrowinning 2017-04-21T02:33:06+00:00
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gold. elution (2 replies)

geff
3 months ago
geff 3 months ago

why to load carbon with gold and after strip off gold from carbon by electrolysis. is there any research to bypass the carbon loading and directly use the pregnant water as an electrolyte to recover gold ?

David
3 months ago
David 3 months ago

The use of CIL/CIP is no just to collect the dissolved gold but to collect it before natural carbons sometimes found in ores collect it. This is why is it called Activated Carbon. It should generally attract gold to it faster than natural organic carbons.

Merrill Crowe is the alternative.

Your idea of direct electrowinning of the pulp.... hmmm... no. Cost and other PhD like discussion.

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Mikhail
3 months ago
Mikhail 3 months ago

In order to send a solution with gold for electrolysis, the concentration of gold should be at least 20 mg / l. Otherwise, the electrolysis process is not justified.
This method is implemented in installations of intensive leaching of gold, such as Acacia (FLSmidth), Inline Leach Reactor (Gecko Systems). In such plants, a solution rich in gold is obtained and direct electrolysis is carried out.

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