Method of recovering the constituents of catalysts...

Details Method of recovering the constituents of catalysts... Method of recovering the constituents of catalysts...

C - Chemistry, Metallurgy

22

B

53/371

C22B 11/06 (2006.01) C01G 55/00 (2006.01) C22B 3/10 (2006.01) C22B 7/00 (2006.01)

Patent

CA 1068487

METHOD OF RECOVERING THE CONSTITUENTS OF CATALYSTS COMPRISING AN ALUMINOUS CARRIER, PLATINUM AND IRIDIUM ABSTRACT OF THE DISCLOSURE The invention concerns the recovery of the constitu- ents of catalysts containing platinum and iridium. They are recovered by substantially totally solubilizing the catalysts with an oxidizing solution of hydrochloric acid, and by ex- tracting the precious metals with an anionic resin from which the iridium is selectively washed out. This method enables the platinum and iridium to be completely separated and has the advantage of using only one bed of anionic resin.

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