The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2001
Filed:
Aug. 30, 1999
Applicant:
Inventors:
Sandra Bogdanovic, Frankfurt am Main, DE;
Carl-Dieter Frohning, Wesel, DE;
Helmut Bahrmann, Hamminkeln, DE;
Assignee:
Celanese GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 4/550 ;
U.S. Cl.
CPC ...
C07C 4/550 ;
Abstract
The invention concerns a process for preparing aldehydes by reacting with hydrogen and carbon monoxide at a temperature of between 20 and 170° C. and a pressure of between 1 and 300 bar an olefinically unsaturated C,-C,compound in the presence aqueous phase containing rhodium and sulphonated triarylphosphines as catalyst and between 10 and 70 wt % of a compound of formula (1), R(OCH,CH,),OR,, R standing for hydrogen, a straight-chain or branched C,-C,alkyl group or a C,-C,hydroxyalkyl group, R,standing for hydrogen or a methyl group, and n standing for an integer from 3 to 50.