FIELD: noble metal metallurgy, in particular gold recovery from churlish hard-cleaning raw materials such as coal and divot.
SUBSTANCE: cold-containing raw materials (e.g., black and brown coal and divot) contains gold in form of chemical compound with complex organic substances such as guminic acid, and in process of fuel burning gold easily volatilizes together with gaseous burning products. Method of present invention includes backing of said raw materials under air discharge and sublimate is absorbed by passing of exhaust gases through vessel with water and column filled with granulated activated carbon as sorptive agent.
EFFECT: gold recovery from gold-containing raw material with improved yield.
1 ex, 1 tbl
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