METHOD OF COPPER-LEAD CONCENTRATE LEACHING

摘要

FIELD: metallurgy of heavy nonferrous metals. SUBSTANCE: leaching is carried out with sulfuric acid aqueous solution in the presence of oxidizing agent under atmospheric pressure. Oxidizing agent - lead dioxide taken at 3-5% excess of theoretical value to oxidize metal sulfides or dioxide-sulfate fraction. Sulfuric acid solution - electrolyte from the utilized lead acid accumulators. Leaching is carried out at 40-60 C at sulfuric acid concentration 7-10 g/l (not less) in pulp at solid matter content 45-60%. EFFECT: improved method of leaching. 3 cl