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Title:
METHOD FOR PRODUCING FLUORINE-CONTAINING ETHER WITH HIGH PURITY
Document Type and Number:
WIPO Patent Application WO/2010/147105
Kind Code:
A1
Abstract:
Disclosed is a method for producing a fluorine-containing ether with a high purity that has a largely reduced fluorine-containing alkyl alcohol concentration. This method, which can be efficiently carried out and is suitable for scale-up, is characterized by comprising subjecting a crude fluorine-containing ether solution, which contains a fluorine-containing alkyl alcohol as an impurity, to countercurrent extraction using water.

Inventors:
KAGAWA MICHIRU (JP)
NAKAZONO AOI (JP)
SENBA YASUHIDE (JP)
MOTOYAMA HITOSHI (JP)
YOSHIZAWA TORU (JP)
KOH MEITEN (JP)
Application Number:
PCT/JP2010/060085
Publication Date:
December 23, 2010
Filing Date:
June 15, 2010
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
KAGAWA MICHIRU (JP)
NAKAZONO AOI (JP)
SENBA YASUHIDE (JP)
MOTOYAMA HITOSHI (JP)
YOSHIZAWA TORU (JP)
KOH MEITEN (JP)
International Classes:
C07C41/05; C07C41/58; C07C43/12; C07B61/00
Domestic Patent References:
WO2006123563A12006-11-23
Foreign References:
JP2008230981A2008-10-02
JP2002201152A2002-07-16
JP2006306726A2006-11-09
JPH07505899A1995-06-29
JP2002047218A2002-02-12
JPH09263559A1997-10-07
JP2002201152A2002-07-16
JP2004345967A2004-12-09
JP2005068142A2005-03-17
JP2005132826A2005-05-26
JP2005306800A2005-11-04
JP2008230979A2008-10-02
JP2005230981A2005-09-02
JP2001039962A2001-02-13
JPH07188085A1995-07-25
JPH05170755A1993-07-09
Other References:
See also references of EP 2444385A4
Attorney, Agent or Firm:
KAWAMURA, Kiyoshi et al. (JP)
Kiyoshi Kawamura (JP)
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