Method for the recovery of rhodium complexes

Details Method for the recovery of rhodium complexes Method for the recovery of rhodium complexes

1982-01-20

1984-09-25

Konopka, P. 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,...

260429R, 502 30, 502166, 568454, 568909, B01J 3140, B01J 3124, C07C 4550

Patent

active

044736550

ABSTRACT:
A method for the recovery of rhodium-triarylphosphine complexes used in the hydroformylation of olefins is described, which comprises contacting an extracted catalyst liquid containing therein a rhodium-triarylphosphine complex with hydrogen in the presence of an alcohol containing 1 to 8 carbon atoms and water to precipitate a hydrogen-coordinated rhodium-triarylphosphine complex, and recovering the precipitated hydrogen atom-coordinated rhodium-triarylphosphine complex from the liquid.

REFERENCES:
patent: 3560539 (1971-02-01), Booth
patent: 3965192 (1976-06-01), Booth
patent: 4131640 (1978-12-01), Kutepow
patent: 4218336 (1980-08-01), Eisenbach et al.

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