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:
Jun. 13, 2023
Filed:
Aug. 24, 2018
Applicants:
Bp P.l.c., London, GB;
Bp (China) Holdings Ltd, Shanghai, CN;
Inventors:
Assignees:
BP p.l.c., London, GB;
BP (China) Holdings Ltd, Shanghai, CN;
Primary Examiner:
Int. Cl.
CPC ...
C07C 41/09 (2006.01); B01J 29/10 (2006.01); B01J 29/18 (2006.01); B01J 29/70 (2006.01); B01J 35/02 (2006.01); C07C 43/04 (2006.01);
U.S. Cl.
CPC ...
C07C 41/09 (2013.01); B01J 29/106 (2013.01); B01J 29/18 (2013.01); B01J 29/7007 (2013.01); B01J 29/7015 (2013.01); B01J 35/023 (2013.01); C07C 43/043 (2013.01);
Abstract
A process the dehydration of methanol to dimethyl ether in the presence of a solid Brønsted acid catalyst selected from aluminosilicate zeolites which have a maximum free sphere diameter of greater than 3.67 Angstroms and heteropolyacids and a promoter selected from methyl formate, dimethyl oxalate and dimethyl malonate and the molar ratio of promoter to methanol is maintained at less than 1.