FIELD: metallurgy; production of metals by electrolytic method by preparation of rich electrolytes of non- ferrous metals, copper in particular. SUBSTANCE: proposed method consists in placing the solid fraction of metal in center portion of reservoir and supplying air and lean electrolyte simultaneously from opposite sides relative to solid fraction. Provision is made for control of dissolving procedure in the course of its performance. EFFECT: increased productivity; reduced losses of metal. 3 cl, 1 dwg, 1 ex
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