Rhodium recovery from hydroformylation reaction product

Details Rhodium recovery from hydroformylation reaction product Rhodium recovery from hydroformylation reaction product

1987-10-27

1989-10-03

Bascomb, Wilbur

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568492, 203 49, 203 73, 203 74, 203 81, 203DIG6, B01D 334, C07C 4550

Patent

active

048718793

ABSTRACT:
In the hydroformylation of alkenes to aldehydes, rhodium is recovered from the stripped overhead of the hydroformylation reactor by condensing the overhead, removing the bulk of the aldehyde product from the condensed overhead, stripping the residue which remains with nitrogen gas to remove minor amounts of highly volatile aldehyde product remaining in the residue and redistilling the residue to remove components from the condensed overhead which are lower boiling than the catalyst components. The catalyst components including rhodium and phosphine ligand are returned to the hydroformylation reactor.

REFERENCES:
patent: 1833717 (1931-11-01), Laird
patent: 4199410 (1980-04-01), Ohrui et al.
patent: 4289589 (1981-09-01), Koehler et al.
patent: 4479012 (1984-10-01), Fischer et al.
patent: 4593127 (1986-06-01), Bunning et al.
patent: 4613701 (1986-09-01), Strong
Weissberger: Technique of Organic Chemistry vol. IV: Distillation; N.Y. 1951, pp. 377, 378.

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