Title:
METHOD FOR PRODUCING DIFLUOROETHYLENE
Document Type and Number:
WIPO Patent Application WO/2021/085449
Kind Code:
A1
Abstract:
Provided is a method for efficiently obtaining HFO-1132(E) and/or HFO-1132(Z). The method for producing HFO-1132(E) and/or HFO-1132(Z) comprises a step for supplying a composition containing HFO-1132(E) and/or HFO-1132(Z) into a reactor and carrying out an isomerization reaction between the HFO-1132(E) and the HFO-1132(Z).
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Inventors:
TAKAKUWA TATSUYA (JP)
YAMAMOTO OSAMU (JP)
KARUBE DAISUKE (JP)
YAMAMOTO OSAMU (JP)
KARUBE DAISUKE (JP)
Application Number:
PCT/JP2020/040360
Publication Date:
May 06, 2021
Filing Date:
October 28, 2020
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
C07C21/18; C07C17/358
Foreign References:
| JP2016515118A | 2016-05-26 | |||
| US5051536A | 1991-09-24 | |||
| CN108299153A | 2018-07-20 |
Other References:
N. C. CRAIG, ET AL.: "Thermodynamics of cis-trans isomerizatians, the 1, 2-difluoroethylenes", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 83, no. 14, 20 July 1961 (1961-07-20), pages 3047 - 3050, XP055663370
FRED B WAMPLER: "The SO2 ( sulfur dioxide) (3B1) photosensitized isomerization of cis-and trans-1, 2-difluoroethylene", INTERNATIONAL JOURNAL OF CHEMICAL KINETICS, vol. 8, no. 4, 1 July 1976 (1976-07-01), pages 511 - 517, XP055663372
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 83, 1961, pages 3047
See also references of EP 4053093A4
FRED B WAMPLER: "The SO2 ( sulfur dioxide) (3B1) photosensitized isomerization of cis-and trans-1, 2-difluoroethylene", INTERNATIONAL JOURNAL OF CHEMICAL KINETICS, vol. 8, no. 4, 1 July 1976 (1976-07-01), pages 511 - 517, XP055663372
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 83, 1961, pages 3047
See also references of EP 4053093A4
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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