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. 02, 1979
Filed:
Apr. 13, 1978
Applicant:
Inventor:
Hans-Jurgen Arpe, Kelkheim, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568672 ; 568678 ; 568613 ;
Abstract
A process for the preparation of dimethyl glycol by the hydrogenolysis of methylglycol formal in the presence of catalysts which consist of oxide mixtures of silicon and aluminum and/or of rare earths, as well as of metallic nickel and/or cobalt and/or copper, wherein the catalysts contain additionally as promoter metallic palladium and/or rhodium and/or platinum.