Title:
パーフルオロアルカンスルフィン酸塩の製造方法
Document Type and Number:
Japanese Patent JP5655633
Kind Code:
B2
Abstract:
In a method for obtaining an alkali metal perfluoroalkanesulfinate by reacting a perfluoroalkanesulfine halide with a sulfur-containing reducing agent in the presence of water, a reaction liquid containing the alkali metal sulfinate obtained after the reaction is concentrated till a specific concentration, thereby inorganic salts, which are impurities in the solution, are precipitated and removed, and a filtrate after removing the inorganic salts is subjected to an operation such as concentration and drying, thereby obtaining the target alkali metal perfluorosulfinate with a high purity and a good operability. Furthermore, an organic solvent for extraction becomes unnecessary. Therefore, it is possible to greatly reduce wastes.
Inventors:
柏葉 崇
南明 勉
竹中 陽一
南明 勉
竹中 陽一
Application Number:
JP2011043594A
Publication Date:
January 21, 2015
Filing Date:
March 01, 2011
Export Citation:
Assignee:
セントラル硝子株式会社
International Classes:
C07C313/04
Attorney, Agent or Firm:
Makoto Koide