Title:
アニオン性含フッ素乳化剤の回収方法
Document Type and Number:
Japanese Patent JP5720580
Kind Code:
B2
Abstract:
To provide a method for recovering an anionic fluorinated emulsifier, capable of easily and efficiently recovering an anionic fluorinated emulsifier adsorbed on a basic ion exchange resin. A basic ion exchange resin is brought into contact with a mixture of an aqueous inorganic acid solution and a non-aqueous fluorinated medium, or the basic ion exchange resin is brought into contact with an aqueous inorganic acid solution and then brought into contact with a non-aqueous fluorinated medium, then a phase of the non-aqueous fluorinated medium is recovered, and an acid of the anionic fluorinated emulsifier is recovered from the phase of the non-aqueous fluorinated medium.
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Inventors:
Junko Haga
Yasuhiko Matsuoka
Yasuhiko Matsuoka
Application Number:
JP2011552806A
Publication Date:
May 20, 2015
Filing Date:
February 02, 2011
Export Citation:
Assignee:
Asahi Glass Co., Ltd.
International Classes:
B01J49/00; B01D15/04; C02F1/42; C07C51/47; C07C59/135; C09K23/00
Domestic Patent References:
| JP2003285076A | 2003-10-07 | |||
| JPS632656B2 | 1988-01-20 | |||
| JP2001062313A | 2001-03-13 | |||
| JP2003512931A | 2003-04-08 | |||
| JP2003094052A | 2003-04-02 | |||
| JP2003220393A | 2003-08-05 | |||
| JP2003285076A | 2003-10-07 | |||
| JPS632656B2 | 1988-01-20 | |||
| JP2001062313A | 2001-03-13 | |||
| JP2002059160A | 2002-02-26 | |||
| JP2003512931A | 2003-04-08 | |||
| JP2003094052A | 2003-04-02 | |||
| JP2003220393A | 2003-08-05 |
Foreign References:
| CH283612A | 1952-06-15 | |||
| FR1392029A | 1965-03-12 | |||
| FR2166276A1 | 1973-08-17 | |||
| GB533718A | 1941-02-19 | |||
| US2151733A | 1939-03-28 |
Attorney, Agent or Firm:
Shigeru Matsui