FIELD: metallurgy.
SUBSTANCE: proposed method comprises blending the wastes with flux, smelting the blend, dividing melting products into slag and alloy containing copper and platinum metals. Sodium hydroxide is used as flux. Blending is carried out with copper at copper content of 80-30 wt %, flux content of 10-35 wt % and content of wastes of 10-35 wt %. Melting is conducted at 1100-1200°C for 10-20 min. Produced alloy is electrochemically dissolved in copper sulphate solution. Slag obtained in electrochemical dissolution contains platinum metals and is processed in sulfuric acid solution to remove impurities.
EFFECT: higher yield of platinum metals.
2 ex
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