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1. (WO2017150244) METHOD FOR PRODUCING PERFLUOROALKANE SULFONYL IMIDE ACID METAL SALT

Pub. No.:    WO/2017/150244    International Application No.:    PCT/JP2017/006097
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Tue Feb 21 00:59:59 CET 2017
IPC: C07C 303/38
C07C 303/44
C07C 311/48
Applicants: CENTRAL GLASS COMPANY, LIMITED
セントラル硝子株式会社
Inventors: OKADA, Takuya
岡田 卓也
SASAKI, Shintaro
佐々木 真太朗
Title: METHOD FOR PRODUCING PERFLUOROALKANE SULFONYL IMIDE ACID METAL SALT
Abstract:
In the present invention, a perfluoroalkane sulfonyl imide acid metal salt is produced by reacting a perfluoroalkane sulfonyl halide with an organic base and ammonia or an ammonium halide to obtain a mixture containing "a salt or a complex formed from a perfluoroalkane sulfonyl imide acid and the organic base" and "a salt or a complex formed from the organic base and a hydrogen fluoride" (first step), subsequently subjecting the mixture to washing by water and/or filtration to separate and remove "a salt or a complex formed from the organic base and the hydrogen fluoride" contained in the mixture and obtain "a salt or a complex formed from a perfluoroalkane sulfonyl imide acid and the organic base" (second step), and subsequently, in combination therewith, performing a step for reacting the mixture with a halide or a hydroxide of an alkaline metal in a solvent or a re-crystallizing step (third step).