FIELD: metal processing.
SUBSTANCE: invention relates to the processing of polymetallic raw materials for recovery of non-ferrous metals. Proposed method involves anode leaching of raw materials with an aqueous solution containing hydrochloric acid, and cathodic deposition of electropositive metals in a diaphragm cell with anode and cathode spaces, separated by cation-exchange membranes. Above cell contains at least one anode and two cathode spaces.
EFFECT: technical result is an increase in the degree of dissolution of non-ferrous metals, including copper, gold and silver, an increase in the rate of dissolution of leachable components from complex polymetallic raw materials, simplification of leaching technology, as well as simplifying the design and maintenance of the device, allowing to implement the claimed method.
13 cl, 2 dwg, 7 ex
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