FIELD: metallurgy.
SUBSTANCE: invention relates to hydrometallurgy of precious metals and can be used namely for removal of gold at heap leaching of refractory gold-containing ores with cyanide solutions. The method consists in the fact that pyrite cinders are added to the ore prior to laying into a pile or during its formation. Eroded, aged cinders and cinders of current production are used as pyrite cinders. After formation of a pile, leaching of gold with solutions of cyanides is performed.
EFFECT: improving a degree of gold removal at cyanide leaching of refractory ores; reducing consumption of cyanide.
8 cl, 6 tbl, 6 ex
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Authors
Dates
2015-01-10—Published
2012-12-24—Filed