FIELD: chemistry.
SUBSTANCE: method involves treatment of the sulphide concentrate with aqueous ammonia solution and with hydrogen peroxide solution after heating to obtain a solution containing rhenium and platinum. After treating the sulphide concentrate, an insoluble residue and the obtained solution which contains rhenium and platinum are separated, treated with sulphuric acid to pH 0.0-1.0. The solution is then heated and held and the formed residue of platinum compounds is separated from the rhenium solution.
EFFECT: possibility of separating platinum and rhenium at the step for extracting rhenium from sulphide concentrate.
1 tbl, 1 ex
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