Title:
METHOD FOR PURIFYING DIFLUOROACETIC ACID CHLORIDE
Document Type and Number:
WIPO Patent Application WO/2012/133501
Kind Code:
A1
Abstract:
[Problem] To provide a method for producing a highly pure difluoroacetic acid chloride composition product that at least contains difluoroacetic acid fluoride, using a simple means and a simple device. [Solution] A method for purifying difluoroacetic acid chloride contains a step for causing a difluoroacetic acid chloride composition at least containing difluoroacetic acid fluoride to contact calcium chloride at a temperature enabling reaction thereof, and converting the difluoroacetic acid fluoride into difluoroacetic acid chloride.
Inventors:
TAKADA NAOTO
OKAMOTO MASAMUNE
IMURA HIDEAKI
OKAMOTO MASAMUNE
IMURA HIDEAKI
Application Number:
PCT/JP2012/058083
Publication Date:
October 04, 2012
Filing Date:
March 28, 2012
Export Citation:
Assignee:
CENTRAL GLASS CO LTD (JP)
TAKADA NAOTO
OKAMOTO MASAMUNE
IMURA HIDEAKI
TAKADA NAOTO
OKAMOTO MASAMUNE
IMURA HIDEAKI
International Classes:
C07C51/64; C07C53/48
Domestic Patent References:
| WO2011122341A1 | 2011-10-06 |
Foreign References:
| EP0293747A2 | 1988-12-07 | |||
| US5905169A | 1999-05-18 | |||
| US5905169A | 1999-05-18 | |||
| JPH0853388A | 1996-02-27 | |||
| JPH0892162A | 1996-04-09 | |||
| EP0293747A2 | 1988-12-07 |
Other References:
See also references of EP 2676948A4
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
Hiromichi Kobayashi (JP)
Hiromichi Kobayashi (JP)
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Claims:
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