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:
Oct. 23, 1979
Filed:
Mar. 06, 1978
Applicant:
Inventors:
Jurgen Weber, Oberhausen, DE;
Helmut Springer, Voerde, DE;
Boy Cornils, Dinslaken, DE;
Hans Feichtinger, Dinslaken, DE;
Wolfgang Payer, Wesel, DE;
Assignee:
Ruhrchemie Aktiengesellschaft, Oberhausen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
2604 / ;
Abstract
An improvement in a process for the manufacture of .beta.-(dimethylamino)-propionitrile by contacting acrylonitrile with dimethylamine, the improvement residing in passing the reactants in countercurrent with respect to one another in a bubble column reactor and reacting them therein at a temperature between 25.degree. and 80.degree. C., preferably 40.degree. to 60.degree. C.