FIELD: metallurgy.
SUBSTANCE: initial products are pulped in water ("Ж:Т"=2). Received pulp is treated at heating by acid up to pH = 2.0 - 0.5. Additionally from initial product there are leached copper and platinum metals, which are in the form of hydroxides. Non-soluted sediment, containing tellurites, selenites, arsenates of iron, tin, lead are separated. Then form leaching solution it is settled copper by known methods.
EFFECT: reduction of reagents consumption and duration of material processing cycle, increasing of extraction into desired products of platinum, palladium, rhodium, ruthenium and copper.
3 ex
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