EXTRACTION OF COPPER FROM CHALCOPYRITE

摘要

FIELD: extraction of copper from chalcopyrite. ^ SUBSTANCE: proposed method includes (a) oxidation of sulfur in chalcopyrite solution at definite conditions of interaction and release of at least part of copper contained in chalcopyrite into solution followed by stage of reduction of sulfur in solid product from stage (a) to sulfide at definite conditions of interaction and oxidation of sulfur in solid product from stage (b) by solution at definite conditions of interaction and release of at least part of residual copper in solid product into solution in form of copper ions at stage (c). Proposed method includes additionally extraction of copper from one or more solutions of stages (a) and (c). ^ EFFECT: increased rate of leaching-out and extraction of copper into solution. ^ 23 cl, 2 dwg