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.

Date of Patent:
Sep. 03, 2019

Filed:

Jun. 13, 2018
Applicant:

Agc Inc., Chiyoda-ku, JP;

Inventors:

Yusuke Tomiyori, Chiyoda-ku, JP;

Masahiko Nakamura, Chiyoda-ku, JP;

Assignee:

AGC Inc., Chiyoda-ku, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 17/25 (2006.01); C07C 21/18 (2006.01); C07C 17/38 (2006.01); C07B 61/00 (2006.01);
U.S. Cl.
CPC ...
C07C 17/25 (2013.01); C07C 17/38 (2013.01); C07C 21/18 (2013.01); C07B 61/00 (2013.01);
Abstract

There is provided a method of producing HFO with which diluent gas is easily separated even at a low boiling point and which has excellent productivity. A method of producing HFO includes: converting HFC of the formula (1) into the HFO of the formula (2) to obtain a first gas composition containing the HFO and the fluorine-containing solvent, CRRXCRRX(1), CRR═CRR(2), where in the formulae, Rto Rare H or F, Ris H, F, CH, CHF, CHFor CF, the total number of fluorine atoms of Rto Ris one or more, and the total number of hydrogen atoms of Rto Ris one or more. One of Xand Xis H, and the other of Xand Xis F; and separating the fluorine-containing solvent from the first gas composition to obtain a second gas composition containing the HFO.


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