Preparation of aldehydes

Details Preparation of aldehydes Preparation of aldehydes

1993-09-14

1995-02-07

Lone, Werren B.

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

Organic compounds

Oxygen containing

568451, 568492, 252512, C07C 4500, C07C 4550, C07C 4578

Patent

active

053877195

ABSTRACT:
A process for the preparation of aldehydes by hydroformylation of olefins having more than 7 carbon atoms, comprising hydroformylation by means of a rhodium catalyst dissolved homogeneously in the reaction medium, removal of the rhodium catalyst from the hydroformylation reaction product, and recycling of the rhodium separated off from the hydroformylation product into the hydroformylation step, in which the rhodium catalyst is extracted from the hydroformylation product into the aqueous phase by means of an aqueous solution of a nitrogen-containing complexing agent from the group comprising of sulfonated pyridines, sulfonated quinolines, substituted or unsubstituted, sulfonated or sulfonated substituent-carrying 2,2'-bipyridines, 1,10-phenanthrolines, 2,2'-biquinolines, 2,2',6',2"-terpyridines and porphines, and/or from the group comprising of carboxylated pyridines, carboxylated quinolines, substituted or unsubstituted, carboxylated or carboxylated substituent-carrying 2,2'-bipyridines, 1,10-phenanthrolines, 2,2'-biquinolines, 2,2',6',2"-terpyridines and porphines, and the aqueous, rhodium-containing extract is recycled into the hydroformylation step.

REFERENCES:
patent: 3579575 (1971-05-01), Bouniot
patent: 3755393 (1973-08-01), Kniese et al.
patent: 3920754 (1975-11-01), Wu et al.
patent: 3932523 (1976-01-01), Strohmeyer et al.
patent: 3984478 (1976-10-01), Homeier
patent: 4113754 (1978-09-01), Kummer et al.
patent: 4221743 (1980-09-01), Halstead
patent: 4225458 (1980-09-01), Huang
patent: 4292196 (1981-09-01), Homeier et al.
patent: 4298499 (1981-11-01), Imai
patent: 4400547 (1983-08-01), Dawes et al.
patent: 4528403 (1985-07-01), Tano et al.
J. Falbe, Ed., New Syntheses With Carbon Monoxide, Springer, Berlin 1980 pp. 55 ff.-38, 95 FF.
Chem. Ber. 102 (1969, 2238 Tetrahedron Lett. 29 (1968) 3261.
Hydrocarbon Process. (1975) 85-86 Chem. Ber. 123 (1990) 1953.

Affiliated with

Also associated with

Rating

Preparation of aldehydes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of aldehydes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of aldehydes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1111689