Oxidative secondary rhodium recovery process

Details Oxidative secondary rhodium recovery process Oxidative secondary rhodium recovery process

B - Operations, Transporting

01

J

B01J 31/40 (2006.01) B01J 38/54 (2006.01) C07C 51/56 (2006.01) C07C 51/573 (2006.01)

Patent

CA 2058620

2058620 9108050 PCTABS00005 Disclosed is a process for recovering rhodium catalyst values from ''tars'' formed during the preparation of acetic anhydride by the rhodium catalyzed carbonylation of a mixture of methyl iodide and methyl acetate and/or dimethyl ether. The disclosed process provides a means for the recovery of rhodium values which normally are not extracted from the tars by treating a methyl iodide solution of such tars with certain oxidants.

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