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:
Feb. 27, 1979
Filed:
Jan. 17, 1977
Claude Gremmelmaier, Aesch, CH;
Ciba-Geigy Corporation, New York, NY (US);
Abstract
A process for producing alkoxy ketones of formula I ##STR1## wherein R.sub.1 represents an alkyl group having 1 to 8 carbon atoms, R.sub.2 represents hydrogen or an alkyl group having 1 to 4 carbon atoms, and n represents 1 or 2, by dehydrogenation of a corresponding alkoxyalkanol on a copper-containing catalyst which has been activated by treatment with hydrogen at 120.degree. to 450.degree. C., in which process the activated catalyst is firstly brought into contact at 230.degree. to 350.degree. C. with the vapor of the alkoxyalkanol to be dehydrogenated; hydrogen is subsequently passed over the catalyst at 250.degree. to 450.degree. C.; and then the dehydrogenation is performed at 150.degree. to 450.degree. C. on the catalyst pretreated in this manner, is disclosed.