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:
Jul. 01, 2014
Filed:
Jun. 23, 2011
Satoshi Kawaguchi, Tokyo, JP;
Hidekazu Okamoto, Tokyo, JP;
Yu Takeuchi, Tokyo, JP;
Hirokazu Takagi, Tokyo, JP;
Kunio Watanabe, Tokyo, JP;
Koichi Yanase, Tokyo, JP;
Satoshi Kawaguchi, Tokyo, JP;
Hidekazu Okamoto, Tokyo, JP;
Yu Takeuchi, Tokyo, JP;
Hirokazu Takagi, Tokyo, JP;
Kunio Watanabe, Tokyo, JP;
Koichi Yanase, Tokyo, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
In the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf), formation of HFC-254eb as an excessively reduced product is suppressed. A process for producing 2,3,3,3-tetrafluoropropene, which comprises reacting a raw material compound gas composed of at least one of 1,1-dichloro-2,3,3,3-tetrafluoropropene and 1-chloro-2,3,3,3-tetrafluoropropene, and hydrogen gas, in the presence of a catalyst, wherein the catalyst is a catalyst having palladium supported on active carbon, and the ratio of the number of moles of the hydrogen gas to the number of moles of chlorine atoms in the raw material compound gas (H/Cl) is at most 0.7.