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:
Dec. 03, 2002
Filed:
Jun. 21, 2001
Applicant:
Inventors:
Jean Margaret Pearson, Middlesbrough, GB;
Raymond Anthony Hadden, Newton Hall, GB;
Assignee:
Lucite International UK Limited, Southampton, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 6/738 ; C07C 5/114 ;
U.S. Cl.
CPC ...
C07C 6/738 ; C07C 5/114 ;
Abstract
A process for the liquid-phase carbonylation of ethylene, according to the equation C H +CO+ROH C H CO R, in the presence of a catalyst system comprising a Group VIII metal or compound thereof, a phosphine ligand and a source of anions, and in the presence of water or a source of organic hydroxyl groups, is carried out in conditions in which the molar ratio of ethylene to carbon monoxide in the gaseous phase of the reactor is greater than 1:1. The higher ratios of ethylene to carbon monoxide are beneficial in increasing the turnover number of the catalyst system.