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. 23, 2014
Filed:
Dec. 14, 2012
Applicant:
Celanese International Corporation, Irving, TX (US);
Inventors:
Carole Marie Le Berre, Lacroix-Falgarde, FR;
Duc Hanh Nguyen, Marseilles, FR;
Phillipe Gilles Serp, Clermont Lefort, FR;
Philippe Joseph Kalck, Auzeville Tolosane, FR;
G. Paull Torrence, League City, TX (US);
Assignee:
Celanese International Corporation, Irving, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 51/12 (2006.01); C07C 53/08 (2006.01);
U.S. Cl.
CPC ...
C07C 51/12 (2013.01); C07C 53/08 (2013.01);
Abstract
Processes for the production of acetic acid by carbonylation of methanol and reactive derivatives thereof in a liquid phase reaction medium, wherein the reaction medium comprises a finite amount of water, a homogeneous catalyst, an alkyl halide promoter, and a catalyst stabilizer/co-promoter comprising a dissymmetric phosphonium cation.