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. 24, 2019
Filed:
Nov. 25, 2016
Applicant:
Bp Chemicals Limited, Sunbury-on-Thames, Middlesex, GB;
Inventors:
Nicholas John Hazel, Beverley, GB;
David John Law, Hull, GB;
Assignee:
BP Chemicals Limited, Middlesex, GB;
Primary Examiner:
Int. Cl.
CPC ...
B01J 29/18 (2006.01); B01J 38/06 (2006.01); B01J 29/50 (2006.01); B01J 29/65 (2006.01); B01J 29/70 (2006.01); C07C 67/37 (2006.01); C07C 69/12 (2006.01); B01J 38/04 (2006.01); B01J 29/90 (2006.01);
U.S. Cl.
CPC ...
B01J 29/18 (2013.01); B01J 29/50 (2013.01); B01J 29/65 (2013.01); B01J 29/70 (2013.01); B01J 38/06 (2013.01); C07C 67/37 (2013.01); C07C 69/12 (2013.01); B01J 29/90 (2013.01); B01J 38/04 (2013.01); B01J 2229/24 (2013.01); B01J 2229/34 (2013.01); B01J 2229/36 (2013.01); B01J 2229/42 (2013.01); Y02P 20/584 (2015.11);
Abstract
A carbonylation process in the presence of a pretreated zeolite catalyst which comprises the sequential steps (i) pretreating the catalyst and (ii) carbonylating dimethyl ether with a carbon monoxide-containing gas to produce methyl acetate in which the catalyst pretreatment step (i) comprises a step (a) contacting the catalyst with a first treatment mixture comprising water vapour; and a step (b) contacting the treated catalyst of step (a) with a second treatment mixture comprising an inert gas and at least one of dimethyl ether and methanol.