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:
Mar. 21, 2017
Filed:
Mar. 14, 2014
Celanese International Corporation, Irving, TX (US);
Carole Marie Le Berre, Lacroix-Falgrade, FR;
Duc Hahn Nguyen, Marseille, FR;
Philippe Gilles Serp, Clermont Lefort, FR;
Philippe Kalck, Auzeville Tolosane, FR;
G. Paull Torrence, League City, TX (US);
CELANESE INTERNATIONAL CORPORATION, Irving, TX (US);
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 an imidazolium cation RRIm+ as an iodide salt, wherein Rand Rare each independently a substituted or unsubstituted alkyl or cycloalkyl, with the proviso that Rand Rare not the same.