FIELD: metallurgy of non-ferrous metals, more particularly extraction and separation of noble metals. SUBSTANCE: method comprises selective cementation of rhodium with zinc, during heating and stirring operations. Process is carried out in solutions of phosphoric acid having concentration of 90-100% at temperatures from 80 to 140 C cementation time of 5-10 min and stoichiometric amount of zinc used. Method makes it possible to simplify process, use cheaper reagents, and increase direct extraction of rhodium thus reducing expenses for refining thereof. EFFECT: higher efficiency. 1 tbl
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