Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yoshio Ito0
Shoujirou Usui0
Date of Patent
August 16, 2011
0Patent Application Number
120680930
Date Filed
February 1, 2008
0Patent Primary Examiner
Patent abstract
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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