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. 25, 1981
Filed:
Jul. 28, 1980
Applicant:
Inventors:
Assignee:
Ruhrchemie Aktiengesellschaft, Oberhausen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
260413 ; 562418 ; 562531 ; 562536 ; 252438 ;
Abstract
A process for preparing carboxylic acids by the oxidative conversion of the corresponding aldehydes comprises oxidizing the aldehydes in the presence of a catalyst comprising the anion [Fe(CN).sub.5 H.sub.2 O].sup.-3. The catalyst may be selected from [Fe(CN).sub.5 H.sub.2 O].sup.-3, compounds that form [Fe(CN).sub.5 H.sub.2 O].sup.-3 under the reaction conditions, and their salts. The catalyst is useful for the oxidation of aldehydes with oxygen or oxygen-containing gases. The present process permits the use of lower reaction times and temperatures, and reduces the formation of undesirable reaction by-products.