Title:
METHOD FOR PRODUCING HYDROFLUOROOLEFIN
Document Type and Number:
WIPO Patent Application WO/2017/104829
Kind Code:
A1
Abstract:
Provided is a method for producing a HFO with which a diluent gas is easily separated even at a low boiling point and which has excellent productivity. This method for producing a HFO has a reaction step, in which in the presence of a gaseous fluorine-containing compound that has a higher boiling point than the boiling point of a HFO represented by formula (2), a HFC (1) represented by formula (1) is converted to the HFO represented by formula (2), and a first gas composition that includes said HFO and said fluorine-containing solvent is obtained, and a separation step, in which the fluorine-containing solvent is separated from the first gas composition to obtain a second gas composition that includes the HFO. CR1R2X1CR3R4X2 (1) CR1R2=CR3R4 (2) (In formula (1) and formula (2), R1∼R3 are H or F, R4 is H, F, CH3, CH2F, CHF2, or CF3, the total number of fluorine atoms in R1∼R4 is 1 or more, and the total number of hydrogen atoms in R1∼R4 is 1 or more. Of X1 and X2, one is H, and the other is F.)
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Inventors:
TOMIYORI YUSUKE (JP)
NAKAMURA MASAHIKO (JP)
NAKAMURA MASAHIKO (JP)
Application Number:
PCT/JP2016/087637
Publication Date:
June 22, 2017
Filing Date:
December 16, 2016
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
International Classes:
C07C17/25; C07C21/18; C07B61/00
Foreign References:
| JP2011520856A | 2011-07-21 | |||
| JPH11292807A | 1999-10-26 | |||
| JP2010513437A | 2010-04-30 | |||
| JP2013523882A | 2013-06-17 | |||
| JP2008518938A | 2008-06-05 |
Other References:
See also references of EP 3392229A4
Attorney, Agent or Firm:
SAKURA PATENT OFFICE, P.C. (JP)
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