Preparation of aldehydes

Details Preparation of aldehydes Preparation of aldehydes

1995-08-02

1997-12-09

Ivy, C. Warren

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

Organic compounds

Oxygen containing

568451, 568455, C07C 4550

Patent

active

056962975

ABSTRACT:
Aldehydes or aldehydes and alcohols are prepared by hydroformylation of olefins of more than 3 carbon atoms by a process comprising the stage of hydroformylation by means of a rhodium catalyst homogeneously dissolved in the reaction medium, the separation of the rhodium catalyst from the discharge from the hydroformylation reaction and the recycling of the rhodium separated from the hydroformylation discharge to the hydroformylation stage, wherein the rhodium catalyst is extracted from the hydroformylation discharge into the aqueous phase by means of an aqueous solution of a water-soluble, phosphorus-containing complexing agent selected from the group consisting of the mono- or polysulfonated mono- and oligophosphines and/or from the group consisting of the mono- or polycarboxylated mono- or oligophosphines or the mono- or polysulfonated oligophosphites and the aldehyde or the aldehyde and the alcohol are isolated from the extracted hydroformylation discharge, the aqueous rhodium-containing extract is fed to a precarbonylation stage and is subjected to a precarbonylation in the precarbonylation stage in the presence of an essentially water-insoluble, organic liquid and in the presence of carbon monoxide or of a carbon monoxide-containing gas mixture.

REFERENCES:
patent: 3984478 (1976-10-01), Homeier
patent: 4148830 (1979-04-01), Pruett et al.
patent: 4400547 (1983-08-01), Dawes et al.
patent: 4504588 (1985-03-01), Gartner et al.
patent: 4528403 (1985-07-01), Tano et al.
patent: 4616096 (1986-10-01), Cornis et al.
patent: 4731485 (1988-03-01), Cornils et al.
patent: 4795727 (1989-01-01), Bach et al.
patent: 4808757 (1989-02-01), Cornils et al.
patent: 5091350 (1992-02-01), Cornils et al.
patent: 5290743 (1994-03-01), Chang et al.
patent: 5387719 (1995-02-01), Kneuper et al.
Kogyo Kagaku Zasshi, 72 (1969), 671.
Fette, Seifen, Anstrichmittel 76 (1974) 443.
Kohlpaintner, Dissertation (Phd Thesis), 123-139, Munich 1992.
Hermann et al., Angew. Chem. 105 (1993) 1588 et seq.
Abatjoglou et al. ACS Symp. Ser. 486 (1992) 229.
Organometallics 3, (1984) 932.
New Syntheses with Carbon Monoxide, Ed. Falbe, 38 et seq. 1980.
Chem. Ber. 1-2 (1969), 2238.
Tetrahedron Lett. 29 (1968), 3261.
Hydrocarbon Process, 54, Jun. issue (1975), 85-86.
Jamerson et al., J. Organomet. Chem. 193 (1980) C43.
Jamerson et al., J. Organomet. Chem. 192 (1980) C49.

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-1609259