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. 19, 2013
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
The object is to provide a process for producing highly pure 2,3,3,3-tetrafluoropropene, whereby formation of 3,3,3-trifluoropropene as a by-product is suppressed. A process for producing 2,3,3,3-tetrafluoropropene, which comprises introducing and reacting a raw material compound composed of at least one of 1,1-dichloro-2,3,3,3-tetrafluoropropene and 1-chloro-2,3,3,3-tetrafluoropropene, and hydrogen, in a catalyst layer packed with a catalyst-supporting carrier, wherein the temperature of the catalyst layer is controlled to be higher than the dew point of the raw material mixed gas comprising the raw material compound and the hydrogen, and the maximum temperature of the catalyst layer is maintained to be at most 130° C. during the reaction.