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:
Aug. 13, 2019
Filed:
Aug. 20, 2018
Applicant:
Agc Inc., Chiyoda-ku, JP;
Inventors:
Assignee:
AGC Inc., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
B01J 21/18 (2006.01); B01J 23/42 (2006.01); C07B 61/00 (2006.01); C07C 17/23 (2006.01); C07C 21/18 (2006.01);
U.S. Cl.
CPC ...
C07C 17/23 (2013.01); B01J 21/18 (2013.01); B01J 23/42 (2013.01); C07C 21/18 (2013.01); C07B 61/00 (2013.01);
Abstract
An efficient method for producing 1-chloro-2,3,3,3-tetorafluoropropene from 1,1-dichloro-2,3,3,3-tetrafluoropropene is provided. The method produces 1-chloro-2,3,3,3-tetorafluoropropene by reducing 1,1-dichloro-2,3,3,3-tetrafluoropropene with fewer over-reduced by-products, such as 2,3,3,3-tetrafluoropropene and 1,1,1,2-tetrafluoropropane. In the method, 1,1-dichloro-2,3,3,3-tetrafluoropropene reacts with hydrogen in a gas phase in the presence of a palladium catalyst-carrying carrier, in which a palladium catalyst having a specific surface area of 40 m/g or less is carried on the carrier.