FIELD: metallurgy.
SUBSTANCE: method for processing of copper-based electronic scrap containing noble metals, consists in the fact that the electronic scrap is exposed to oxidising melting to produce an alloy with copper content of 55-85 wt %. The produced alloy is exposed to dissolution by means of electrochemical dissolution in a sulphate copper solution at voltage of 0.8-1.5 V on electrodes with production of sludge containing gold and silver, and an alloy on the cathode, containing copper and palladium. This alloy is exposed to electrochemical dissolution in the copper sulphate solution at voltage of 0.3-0.5 V on electrodes to produce copper on the cathode and sludge containing palladium. At the same time the produced sludges without mixing are leached with sulfuric acid.
EFFECT: higher extent of copper and noble metals extraction from copper-based electronic scrap.
2 ex
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