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. 12, 2017
Filed:
Jun. 26, 2015
Applicant:
Mitsubishi Chemical Corporation, Tokyo, JP;
Inventors:
Shuji Akihara, Sapporo, JP;
Tatsuya Suzuki, Otake, JP;
Toshiya Yasukawa, Otake, JP;
Akio Takeda, Otake, JP;
Kenichi Miyaki, Otake, JP;
Ken Ooyachi, Otake, JP;
Assignee:
Mitsubishi Chemical Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C 67/08 (2006.01); C07C 1/24 (2006.01); C07C 51/21 (2006.01); C07C 51/235 (2006.01); C07C 29/17 (2006.01); C07C 51/25 (2006.01); C07C 51/23 (2006.01);
U.S. Cl.
CPC ...
C07C 67/08 (2013.01); C07C 1/24 (2013.01); C07C 29/172 (2013.01); C07C 51/21 (2013.01); C07C 51/23 (2013.01); C07C 51/235 (2013.01); C07C 51/252 (2013.01); C07C 2521/04 (2013.01);
Abstract
Provided is a method for producing isobutylene with a high selectivity by a dehydration reaction of isobutanol. There are provided a method for producing isobutylene by dehydration of isobutanol, in which the dehydration of isobutanol is performed in a state where at least one of an organic acid and an organic acid ester is present in a reaction system, and methods for producing methacrylic acid and methyl methacrylate from the obtained isobutylene.