METHOD OF NICKEL, COBALT AND COPPER DEPOSITION IS SELECTIVE FROM ZINC FROM SULPHATE SOLUTIONS IN THE FORM OF SULPHIDES

摘要

FIELD: metallurgy. ^ SUBSTANCE: invention refers to hydro metallurgy of non ferrous metals and can be used at development of practices for hydro metallurgical processing of solutions containing zinc together with nickel and/or copper and/or cobalt. The method includes introducing a sulphur containing reagent into the solution and heating it at a temperature of 130-170°C. At that thiosulfate as a sulphur containing reagent is used at a consumption rate of 110-130% from stoicometric required for sedimentation of nickel, cobalt and copper; this reagent is introduced into initial solution containing nickel and zinc and at least one of metals like cobalt, copper and iron. The suggested method allows extraction out of solution of nickel, copper and cobalt in form a heading with low degree of a zinc codeposition. ^ EFFECT: processing without seeding agent and reduction of process time. ^ 4 cl, 6 tbl, 6 ex