Process for regenerating a deactivated rhodium hydroformylation

Details Process for regenerating a deactivated rhodium hydroformylation Process for regenerating a deactivated rhodium hydroformylation

1993-03-22

1994-03-01

Konopka, Paul E.

Catalyst, solid sorbent, or support therefor: product or process

Regenerating or rehabilitating catalyst or sorbent

Treating with a liquid or treating in a liquid phase,...

502 22, 502 24, 568454, B01J 3140, B01J 3858, C07C 4550

Patent

active

052907430

ABSTRACT:
A process for regenerating a deactivated hydroformylation catalyst system that contains a rhodium hydridocarbonyl tris(trisubstituted phosphine) complex, a trisubstituted phosphine, and a diphosphinoalkane, is disclosed. The process involves oxidation of the catalyst system, removal of the phosphine oxidation products, and regeneration of the catalyst system by syngas treatment, aqueous extraction, and addition of phosphine ligands.

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