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. 05, 2015
Filed:
Jun. 14, 2010
Carole M. Le Berre, Lacroix-Falgarde, FR;
Samuel Gautron, Argelos, FR;
Philippe J. Kalck, Auzeville-Tolosane, FR;
Philippe G. Serp, Clermont le Fort, FR;
Nicolas D. Lassauque, Nice, FR;
G. Paull Torrence, League City, TX (US);
Carole M. Le Berre, Lacroix-Falgarde, FR;
Samuel Gautron, Argelos, FR;
Philippe J. Kalck, Auzeville-Tolosane, FR;
Philippe G. Serp, Clermont le Fort, FR;
Nicolas D. Lassauque, Nice, FR;
G. Paull Torrence, League City, TX (US);
Celanese International Corporation, Irving, TX (US);
Abstract
A carbonylation process for making acetic acid using a metallic co-catalyst composition, effective as a rhodium stabilizer and/or rate promoter, at molar ratios of metal/rhodium of about 0.5 to 40. The process includes reacting methanol with carbon monoxide in the presence of a rhodium-based catalytic metal complex with about 1 to 20 weight percent methyl iodide, less than about 8 weight % water and about 0.5 to about 30 weight percent methyl acetate. The crude acetic acid is flashed and further purified.