Electrowinning of Gold Silver from Copper Bearing Cyanide Solutions
Metals are electrowon from a solution containing Ag, Au, and Cu as cyanide complexes. The electrolyte commonly has Ag and Au concentrations in the 10 to 50 µg/mL range, while Cu, depending on the ore, may be as high as 500 µg/mL. The electrolysis process produces a metallic product containing Ag, Au, and Cu that is fire refined to dore metal.
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