Method for recovering rhodium

Details Method for recovering rhodium Method for recovering rhodium

C - Chemistry, Metallurgy

22

B

C22B 11/00 (2006.01) C01G 55/00 (2006.01) C22B 5/00 (2006.01)

Patent

CA 2618929

The present invention provides a method for recovering rhodium sponge in high yield from ammonium hexachloro rhodate solution. The method comprises adding formic acid to ammonium hexachloro rhodate solution to reduce the rhodate, recovering reduced rhodium as rhodium black, and calcining the rhodium black under hydrogen atmosphere without water-washing to obtain rhodium sponge.

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