Title:
ALKALI METAL FLUORIDE DISPERSION, AND PROCESS FOR PRODUCTION OF FLUORINATED ORGANIC COMPOUND USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2009/028719
Kind Code:
A1
Abstract:
Disclosed is an alkali metal fluoride dispersion substantially comprising
an alkali metal fluoride and an aprotic organic solvent, which is produced by
carrying out Step (A) mentioned below, subsequently carrying out Step (B) mentioned
below at least once, and subsequently carrying out Step (C) mentioned below.
Step (A): separating a liquid phase from an alkali metal fluoride dispersion
comprising at least one alcoholic solvent selected from the group consisting
of methanol, ethanol and isopropanol and an alkali metal fluoride, and mixing
the separated liquid phase with an aprotic organic solvent having a boiling point
of 85°C or higher under ambient pressure, thereby yielding a mixture containing
the alkali metal fluoride; Step (B): carrying out the following Steps (b1) to
(b3), thereby yielding a mixture containing the alkali metal fluoride; Step
(b1): concentrating the mixture containing the alkali metal fluoride produced
in Step (A) or Step (b3), thereby yielding a concentrated fraction and a concentration
residue; Step (b2): mixing a residue of the alkali metal fluoride dispersion
produced by separating the liquid phase in Step (A) or a residue of the mixture
produced by separating a liquid phase in Step (b3) with the concentrated fraction
produced in Step (b1), thereby yielding a mixture containing the alkali metal
fluoride; and Step (b3): separating a liquid phase from the mixture containing
the alkali metal fluoride produced in Step (b2), and mixing the separated liquid
phase with the concentration residue produced in Step (b1), thereby yielding
a mixture containing the alkali metal fluoride; and Step (C): removing the alcoholic
solvent from the mixture containing the alkali metal fluoride produced in Step
(B), thereby yielding the desired alkali metal fluoride dispersion substantially
comprising the alkali metal fluoride and the aprotic organic solvent.
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Inventors:
HAGIYA KOJI (JP)
Application Number:
PCT/JP2008/065796
Publication Date:
March 05, 2009
Filing Date:
August 27, 2008
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
HAGIYA KOJI (JP)
HAGIYA KOJI (JP)
International Classes:
C01D3/02; C07B39/00; C07C17/20; C07C22/08; C07C51/58; C07C63/72; C07C67/14; C07C69/82; C07C201/12; C07C205/11
Domestic Patent References:
| WO2007126142A1 | 2007-11-08 | |||
| WO1987004151A1 | 1987-07-16 |
Foreign References:
| JPS63502181A | 1988-08-25 | |||
| JP2000086553A | 2000-03-28 | |||
| JPH0211571B2 | 1990-03-14 | |||
| JPS5865226A | 1983-04-18 | |||
| JPH02111624A | 1990-04-24 | |||
| CN1458137A | 2003-11-26 | |||
| JP2606892B2 | 1997-05-07 | |||
| JPH0211571B2 | 1990-03-14 |
Other References:
See also references of EP 2192087A4
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (Limited5-33, Kitahama 4-chome, Chuo-k, Osaka-shi Osaka 50, JP)
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