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:
Jan. 19, 1988
Filed:
Oct. 24, 1986
Applicant:
Inventors:
Werner Otte, Dortsen, DE;
Rudolf Nehring, Marl, DE;
Assignee:
Huels Aktiengesellschaft, Marl, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568814 ;
Abstract
For the selective production of hydroxymethylcyclopropane, cyclopropanecarboxylic acid esters are hydrogenated in the presence of a Zn chromite catalyst in the sump phase or trickling phase under a hydrogen pressure of 200-320 bar and at temperatures of 200.degree.-350.degree. C. Preferably, cyclopropanecarboxylic acid esters are used, the alcohol component of which contains 1-10, especially 1-8 carbon atoms.