Title:
COMPOSITION CONTAINING TRANS-1,2-DIFLUOROETHYLENE (HFO-1132(E)) AND 1,1,1-TRIFLUOROETHANE (HFC-143A) AND METHOD FOR SEPARATING HFO-1132(E) AND HFC-143A FROM COMPOSITION CONTAINING HFO-1132(E) AND HFC-143A
Document Type and Number:
WIPO Patent Application WO/2020/162617
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: an azeotropic or azeotrope-like composition containing HFO-1132(E) and HFC-143a; and a method for separating HFO-1132(E) and HFC-143a from the composition containing HFO-1132(E) and HFC-143a. To solve the problem, a composition containing a refrigerant is provided, wherein: the refrigerant is azeotropic or azeotrope-like and contains trans-1,2-difluoroethylene (HFO-1132(E)) and 1,1,1-trifluoroethane (HFC-143a); and in the refrigerant, the content ratios of HFO-1132(E) and HFC-143a to the total amount of HFO-1132(E) and HFC-143a are 80 mass% or more and 20 mass% or less, respectively.
Inventors:
TAKAHASHI KAZUHIRO (JP)
NAKAUE TSUBASA (JP)
CHAKI TAKEHIRO (JP)
USUI TAKASHI (JP)
KUSHIDA MEGUMI (JP)
NAKAUE TSUBASA (JP)
CHAKI TAKEHIRO (JP)
USUI TAKASHI (JP)
KUSHIDA MEGUMI (JP)
Application Number:
PCT/JP2020/004919
Publication Date:
August 13, 2020
Filing Date:
February 07, 2020
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B1/00; C09K5/04
Foreign References:
| US20110253927A1 | 2011-10-20 | |||
| JP2015229768A | 2015-12-21 | |||
| JP2012508306A | 2012-04-05 | |||
| JP2016130236A | 2016-07-21 | |||
| US20110253927A1 | 2011-10-20 |
Other References:
See also references of EP 3922921A4
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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