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:
Feb. 01, 2022
Filed:
Apr. 22, 2019
Daikin Industries, Ltd., Osaka, JP;
Takashi Usui, Osaka, JP;
Tsubasa Nakaue, Osaka, JP;
Takehiro Chaki, Osaka, JP;
Yuzo Komatsu, Osaka, JP;
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Abstract
The present disclosure provides a method for producing fluoroolefin represented by formula (1): CXX═CXX, wherein X, X, X, and Xare the same or different, and represent a hydrogen atom or a fluorine atom, with high selectivity. Specifically, the present disclosure is a method for producing a fluoroolefin represented by formula (1) described above, the method comprising a dehydrofluorination step of bringing a fluorocarbon represented by formula (2): CXXFCXXH, wherein X, X, X, and Xare as defined above, into contact with a metal catalyst to perform dehydrofluorination, the dehydrofluorination step being performed in the gas phase in the presence of water, the concentration of the water being less than 500 ppm relative to the fluorocarbon represented by formula (2).