FIELD: metallurgy. SUBSTANCE: method of chalcopyrite leaching involves its treatment with leaching ferric (III) sulfate solution in the presence of diluted sulfuric acid in the absence of silver as a catalyst and at maintenance of chalcopyrite surface potential value in the range 350-450 mV by regulation of ratio of ferric ions to ferrous ions in leaching solution. Invention can be used for copper extraction. EFFECT: simplified method, decreased cost of method. 7 cl, 11 dwg, 1 tbl
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