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. 12, 1986
Filed:
Aug. 05, 1985
Applicant:
Inventor:
Christopher S John, Amsterdam, NL;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568484 ;
Abstract
An aldehyde is prepared by passing an aromatic carboxylic compound or an aliphatic carboxylic compound having at most one .alpha.-hydrogen atom in the acyl group, in the presence of hydrogen at elevated temperature over a catalyst comprising at least 25% w of iron oxide expressed as Fe.sub.2 O.sub.3, calculated on the total catalyst.