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:
Mar. 10, 2026
Filed:
Sep. 15, 2022
Applicant:
Mitsubishi Chemical Corporation, Tokyo, JP;
Inventors:
Assignee:
Mitsubishi Chemical Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C 67/08 (2006.01); B01J 21/04 (2006.01); B01J 35/40 (2024.01); B01J 35/50 (2024.01); C07C 1/24 (2006.01); C07C 29/04 (2006.01); C07C 51/235 (2006.01); C07C 51/25 (2006.01);
U.S. Cl.
CPC ...
C07C 67/08 (2013.01); B01J 21/04 (2013.01); B01J 35/40 (2024.01); B01J 35/50 (2024.01); C07C 1/24 (2013.01); C07C 29/04 (2013.01); C07C 51/235 (2013.01); C07C 51/25 (2013.01); C07C 51/252 (2013.01); B01J 2235/00 (2024.01); C07C 2521/04 (2013.01);
Abstract
There is provided a method for producing isobutylene, in which isobutylene is produced from isobutanol with a high selectivity while suppressing a decrease in the isobutanol conversion rate under pressure. In the method for producing isobutylene according to the present invention, a raw material gas containing isobutanol is brought into contact with a catalyst to produce isobutylene from isobutanol, the method including bringing the raw material gas containing isobutanol into contact with a catalyst at a linear velocity of 1.20 cm/s or more under a pressure of 120 kPa or more in terms of absolute pressure to produce isobutylene from isobutanol.