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:
Sep. 10, 2019
Filed:
Jul. 24, 2018
Applicant:
Evonik Degussa Gmbh, Essen, DE;
Inventors:
Rui Sang, Liaocheng, CN;
Jie Liu, Solna, SE;
Kaiwu Dong, Bo Zhou, CN;
Ralf Jackstell, Rostock, DE;
Matthias Beller, Ostseebad Nienhagen, DE;
Robert Franke, Marl, DE;
Assignee:
EVONIK DEGUSSA GMBH, Essen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 67/04 (2006.01); B01J 31/24 (2006.01); C07C 67/38 (2006.01); C07F 9/50 (2006.01); C07F 9/58 (2006.01);
U.S. Cl.
CPC ...
C07C 67/04 (2013.01); B01J 31/2409 (2013.01); C07C 67/38 (2013.01); C07F 9/5027 (2013.01); C07F 9/58 (2013.01); B01J 2231/321 (2013.01); B01J 2531/824 (2013.01);
Abstract
A catalytic process for the methoxycarbonylation of olefins where formic acid is the CO source. The process includes the steps of forming a reaction mixture where methanol and formic acid are added at a volume ratio in the range from 1.55:0.45 to 1.1:09. The methanol-formic acid ratio enhances both the rate of conversion and methyl ester yield ether produced. The catalysts used is a palladium/benzene-base diphosphine ligand complex.