Process for separation of product resulting from hydroformylatio

Details Process for separation of product resulting from hydroformylatio Process for separation of product resulting from hydroformylatio

1986-03-31

1987-07-07

Lone, Werren B.

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

Organic compounds

Oxygen containing

568449, 568482, 568492, 568909, C07C 4550

Patent

active

046788573

ABSTRACT:
A process is disclosed for preparing products such as 4-hydroxybutanal which comprises contacting unsaturated compounds such as allyl alcohol with carbon monoxide and hydrogen in the presence of a rhodium carbonyl-phosphine catalyst and an aromatic solvent. The solvent is an aromatic which causes a large density difference between the resulting aqueous phase and organic phase so that the soluble rhodium catalyst can be easily separated from the 4-hydroxybutanal product and starting material without appreciable loss of the metal. This allows for easy recycle of the catalyst solution.

REFERENCES:
patent: 3929915 (1975-12-01), Cumbo et al.
patent: 3980670 (1976-09-01), Kummer et al.
patent: 3980671 (1976-09-01), Fernholtz
patent: 4064145 (1977-12-01), Taylor
patent: 4083882 (1978-04-01), Taylor
patent: 4400548 (1983-08-01), Abatjugleau
patent: 4400549 (1983-08-01), Richter
patent: 4567305 (1986-01-01), Matsumoto et al.

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