FIELD: biohydrometallurgical technology.
SUBSTANCE: invention relates to a biohydrometallurgical technology for extracting gold from complex sulfide concentrates containing pyrrhotite, arsenopyrite, pyrite, antimonite. The association of microorganisms consists of bacteria Acidithiobacillus thiooxidans RNCIM No. B-13655, Acidiphilium cryptum RNCIM No. B-13776, Leprospirillum ferriphillum RNCIM No. B-13777, as well as archaea Ferroplasma acidiphilum RNCIM No. B-13654. The association of microorganisms can be used to oxidize sulphide gold concentrate.
EFFECT: invention allows increasing the gold yield.
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