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:
Oct. 18, 2022
Filed:
Jun. 10, 2020
Applicant:
Röhm Gmbh, Darmstadt, DE;
Inventors:
Assignee:
Röhm GmbH, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/25 (2006.01); C07C 45/35 (2006.01); B01J 21/14 (2006.01); B01J 23/89 (2006.01); B01J 21/12 (2006.01); B01J 37/02 (2006.01);
U.S. Cl.
CPC ...
C07C 51/252 (2013.01); B01J 21/12 (2013.01); B01J 21/14 (2013.01); B01J 23/8913 (2013.01); B01J 37/0201 (2013.01); C07C 45/35 (2013.01);
Abstract
A novel process can be used for producing methacrylates such as methacrylic acid and/or alkyl methacrylates, in particular MMA. The process leads to an increased yield and increased efficiency compared to other C4-based production processes, in particular processes starting from isobutylene or tert-butanol as raw material. The process can be operated for longer periods without disruption and with the same or even increased activities and selectivities. The process can also be executed in a manner that is as simple, cost-effective, and environmentally friendly as possible.