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. 20, 1997
Filed:
Dec. 19, 1995
Applicant:
Inventors:
Sharon M Beshouri, Houston, TX (US);
Tonya L Garcia, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560207 ; 562522 ;
Abstract
A process is provided for carbonylation of ethylenic unsaturation comprising the steps of: providing a catalyst system comprising a) a Group VIII metal compound, b) an organic phosphine, and c) and acid; and contacting acetylene, the catalyst system, carbon monoxide, hydrogen, and a nucleophilic compound under conditions effective to carbonylate the acetylene. The presents of hydrogen unexpectedly improves the yield of the desired product (i.e., acrylic acid or the ester thereof).