Title:
METHOD FOR PRODUCING DIFLUOROETHYLENE
Document Type and Number:
WIPO Patent Application WO/2024/071127
Kind Code:
A1
Abstract:
The present disclosure provides a method for obtaining HFO-1132 (E) and/or HFO-1132 (Z) more efficiently than conventional methods. The present disclosure specifically provides a method for producing a composition that contains HFO-1132 (E) and/or HFO-1132 (Z), the method comprising (x) a step in which a reaction product containing HFO-1132 (E) and HFO-1132 (Z) is obtained by supplying a starting material gas that contains 1,1,2-trifluoroethane (HFC-143), trans-1,2-difluoroethylene (HFO-1332(E)) and/or cis-1,2-difluoroethylene (HFO-1132(Z)), and a diluent gas into a reactor that is filled with a catalyst, and subsequently causing a hydrogen fluoride elimination reaction of HFC-143 and an isomerization reaction between HFO-1132 (E) and HFO-1132 (Z), wherein the content of the diluent gas in the starting material gas is 1 to 80 mol%.
Inventors:
CHAKI TAKEHIRO (JP)
HASUMOTO YUUTA (JP)
NOGUCHI ATSUSHI (JP)
TOGO NORIHIRO (JP)
HASUMOTO YUUTA (JP)
NOGUCHI ATSUSHI (JP)
TOGO NORIHIRO (JP)
Application Number:
PCT/JP2023/034964
Publication Date:
April 04, 2024
Filing Date:
September 26, 2023
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
C07C17/25; C07B61/00; C07C17/358; C07C21/18
Domestic Patent References:
| WO2019216175A1 | 2019-11-14 |
Foreign References:
| JP2019214535A | 2019-12-19 | |||
| JP2021028340A | 2021-02-25 | |||
| JP2019189568A | 2019-10-31 | |||
| JP2017124997A | 2017-07-20 | |||
| JP2016222619A | 2016-12-28 | |||
| JP2010180134A | 2010-08-19 |
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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