Process for the recovery of water-soluble hydroformylation...

Details Process for the recovery of water-soluble hydroformylation... Process for the recovery of water-soluble hydroformylation...

B - Operations, Transporting

01

J

252/87

B01J 31/40 (2006.01) B01J 31/28 (2006.01) C07C 45/50 (2006.01)

Patent

CA 1199622

Abstract of the Disclosure To recover a hydroformylation catalyst system containing rhodium and phosphine, the aqueous solution containing the catalyst system is mixed with acid and then extracted with an amine which is dissolved in an organic solvent. The organic phase is separated and treated with the aqueous solution of an inorganic base, thereby recovering the catalyst in essentially pure form as an aqueous solution.

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