FIELD: oxidation catalysts. SUBSTANCE: catalyst is constituted by anode slime formed on lead anode during electrolytic reduction of copper from acid sulfate or chloride-sulfate solutions and preliminarily washed to remove electrolyte and dried. Catalyst contains, wt % up to: manganese oxides 30, lead oxides 20, copper oxides 20, and silver oxides 1, manganese, lead, silver, and copper compounds - the rest. EFFECT: reduced expenses due to use of electrochemical by-product. 3 tbl, 4 ex
