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Title:
METHOD FOR PRODUCING PURIFIED 1-CHLORO-2,3,3,3-TETRAFLUOROPROPENE AND PURIFIED 1-CHLORO-2,3,3,3-TETRAFLUOROPROPENE (Z)
Document Type and Number:
WIPO Patent Application WO/2017/146190
Kind Code:
A1
Abstract:
Provided is a method for efficiently producing purified 1224yd including 1224yd at high concentration from a mixture containing 1224yd and a compound that forms an azeotropic composition or an azeotropic-like composition together with 1224yd. In the method for producing purified 1224yd, a first mixture of 1224yd and a compound (X1) that forms an azeotropic composition or an azeotropic-like composition together with 1224yd, is brought into contact with a first extraction solvent so as to obtain purified 1224yd that does not substantially include the compound (X1).

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Inventors:
TANIGUCHI TOMOAKI (JP)
NOMURA JUMPEI (JP)
SAKAI TAKAYUKI (JP)
HAYASE TAKASHI (JP)
Application Number:
PCT/JP2017/007018
Publication Date:
August 31, 2017
Filing Date:
February 24, 2017
Export Citation:
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Assignee:
ASAHI GLASS CO LTD (JP)
International Classes:
C07C17/38; C07C21/18
Domestic Patent References:
WO1991001287A11991-02-07
WO2011162336A12011-12-29
WO2015072460A12015-05-21
WO2012105700A12012-08-09
Foreign References:
JPH08169850A1996-07-02
JPH08193039A1996-07-30
JP2014513673A2014-06-05
US20100076231A12010-03-25
US20150259267A12015-09-17
JP2010531925A2010-09-30
JP2010202640A2010-09-16
JPS4614725B1
JP2013521275A2013-06-10
JPH1143451A1999-02-16
JPH07133240A1995-05-23
JP2016130236A2016-07-21
Other References:
See also references of EP 3421445A4
Attorney, Agent or Firm:
SAKURA PATENT OFFICE, P.C. (JP)
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