Title:
AZEOTROPIC OR AZEOTROPIC-LIKE COMPOSITION COMPRISING HYDROGEN FLUORIDE AND 1,1,2-TRIFLUOROETHANE, 1-CHLORO-2,2-DIFLUOROETHANE, OR 1,2-DICHLORO-1-FLUOROETHANE
Document Type and Number:
WIPO Patent Application WO/2020/209329
Kind Code:
A1
Abstract:
The present invention provides: a new azeotropic or azeotropic-like composition comprising hydrogen fluoride and 1,1,2-trifluoroethane (HFC-143), 1-chloro-2,2-difluoroethane (HCFC-142), or 1,2-dichloro-1-fluoroethane (HCFC-141); and a separation method using the same. An azeotropic or azeotropic-like composition, comprising hydrogen fluoride and HFC-143. An azeotropic or azeotropic-like composition, comprising hydrogen fluoride and HCFC-142. An azeotropic or azeotropic-like composition, comprising hydrogen fluoride and HCFC-141. A separation method for a composition comprising hydrogen fluoride and at least one selected from the group consisting of HFC-143, HCFC-142, and HCFC-141.
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Inventors:
TAKAHASHI KAZUHIRO (JP)
Application Number:
PCT/JP2020/015962
Publication Date:
October 15, 2020
Filing Date:
April 09, 2020
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
C07C19/08; C07C17/383; C07C19/12
Domestic Patent References:
| WO2018060576A1 | 2018-04-05 | |||
| WO2018069609A1 | 2018-04-19 | |||
| WO2019216239A1 | 2019-11-14 | |||
| WO1994011460A1 | 1994-05-26 |
Foreign References:
| JP2017501992A | 2017-01-19 | |||
| JP2016130236A | 2016-07-21 |
Other References:
MCBEE, E. T. ET AL.: "Fluorinated derivatives of ethane", INDUSTRIAL AND ENGINEERING CHEMISTRY, vol. 39, no. 3, 1947, pages 409 - 412, XP055734957, ISSN: 0019-7866
See also references of EP 3954674A4
See also references of EP 3954674A4
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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