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:
May. 27, 1980
Filed:
Sep. 25, 1978
Applicant:
Inventors:
Assignee:
Celanese Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; B01J / ;
U.S. Cl.
CPC ...
560247 ; 252432 ; 252437 ; 252439 ; 252469 ; 252470 ; 252467 ;
Abstract
In a process for producing an ethyl ester of an aliphatic carboxylic acid which comprises reacting ethylene with the aliphatic carboxylic acid in the liquid phase in the presence of an acid catalyst, the improvement wherein a heteropolyacid of tungsten or an acidic metal salt thereof is used as the acid catalyst, and the reaction is carried out in the presence of water in an amount of up to 7.5% by weight based on the weight of the aliphatic carboxylic acid.