Hydrometallurgy: Leaching in Heap, Vat, CIL, CIP, Merrill–Crowe, SX Solvent Extraction

Hydrometallurgy: Leaching in Heap, Vat, CIL, CIP, Merrill–Crowe, SX Solvent Extraction

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USAGE OF AMMONIUM NITRATE (1 reply)

C
Eng. Cosmas Wambura
1 year ago
Eng. Cosmas Wambura 1 year ago

Ammonium Nitrate is among of chemicals used to control copper in gold vat leaching, so I wish to know how to use it. The capacity of a single tank is 40t. 

J
Jorge
1 year ago
Jorge 1 year ago
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The addition of ammonium in the cyanidation of a gold ore containing soluble copper to reduce the effect of copper has been practiced for many years in some operations. It has been found that the addition of 2 to 6 g/L of ammonium in the cyanide leach solution can improve the gold dissolution over copper. The presence of ammonium promotes the complexation of copper 1, the generation of copper 2 as an oxidant, and the precipitation of copper.


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