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. 17, 1977
Filed:
Aug. 05, 1975
Applicant:
Inventors:
Hans Krekeler, Wiesbaden, DT;
Werner Heinrich Muller, Kelkheim, Taunus, DT;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2606 / ;
Abstract
The present invention is related to a process for the manufacture of hydroquinone by catalytic dehydrogenation of cyclohexanedione-(1,4) in the liquid phase by means of a dehydrogenation mixture composed of a solvent and a catalyst comprising a noble metal of Group VIII of the periodical system.