FIELD: chemical or physical processes.
SUBSTANCE: invention relates to a method of extracting palladium metal. Palladium-containing material, the acid solution containing Ce4+, and the chlorine-containing leaching aid are mixed to obtain a mixed leaching solution. After completion of the reaction, a solution containing Pd2+ is obtained, which is subjected to electrolysis. Palladium metal is obtained at the cathode, and an acid solution containing Ce4+ is obtained at the anode, which is repeatedly used for leaching.
EFFECT: invention provides reduced environmental impact due to exclusion of formation of nitrogen oxide gas, while high degree of extraction of palladium is achieved.
4 cl, 12 dwg
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