Process for hydroformylation of olefins

Details Process for hydroformylation of olefins Process for hydroformylation of olefins

1980-09-22

1982-03-30

Lone, Werren B.

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

Organic compounds

Oxygen containing

568882, 568909, C07C 4550, C07C 4702

Patent

active

043225640

ABSTRACT:
A process for hydroformylation of olefins is described which comprises a step of reacting olefins with carbon monoxide and hydrogen in the presence of a Group VIII noble metal-triarylphosphine complex catalyst, an excess amount of triarylphosphine, a reaction solvent, and organic high boiling point by-products, taking out the produced aldehyde by separating from the resulted hydroformylation reaction product, and thereafter circulating the residual liquid containing the catalyst and the organic high boiling point by-products to the reaction system as a circulating catalyst liquid, wherein the improvement comprises withdrawing at least a part of said circulating catalyst liquid as an extracted catalyst liquid, distilling off at least a part of the organic high boiling point by-products by steam distillation of said extracted catalyst liquid, and recirculating the bottoms of the steam distillation tower to the hydroformylation reaction step.

REFERENCES:
patent: 4151209 (1979-04-01), Paul et al.
Olivier et al., "Hydrocarbon Processing", Apr. 1970, pp. 112-114.
Cornils et al., "Hydrocarbon Processing", Jun. 1975, pp. 83-91.

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