Method of recovering the constituents of catalysts comprising an

Details Method of recovering the constituents of catalysts comprising an Method of recovering the constituents of catalysts comprising an

1975-12-03

1976-12-28

Carter, Herbert T.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75121, 423 22, C01G 5500, C22B 6100

Patent

active

039999831

ABSTRACT:
The invention concerns the recovery of the constituents of catalysts containing platinum and iridium. They are recovered by substantially totally solubilizing the catalysts with an oxidizing solution of hydrochloric acid, and by extracting 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.

REFERENCES:
patent: 2371119 (1945-03-01), Nachad
patent: 2863760 (1958-12-01), Ashley et al.
patent: 3169056 (1965-02-01), Bertolacini
patent: 3488144 (1970-01-01), Sargent

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