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1. (WO2018034145) METHOD FOR PRODUCING FLUORINE-CONTAINING SULFONYLAMIDE COMPOUND

Pub. No.:    WO/2018/034145    International Application No.:    PCT/JP2017/027900
Publication Date: Fri Feb 23 00:59:59 CET 2018 International Filing Date: Wed Aug 02 01:59:59 CEST 2017
IPC: C01B 21/093
C01B 21/086
Applicants: NIPPON SODA CO., LTD.
日本曹達株式会社
Inventors: TSUBOKURA, Shiro
坪倉 史朗
AOMORI, Yuka
青森 有香
KAKO, Satoshi
加古 聡司
Title: METHOD FOR PRODUCING FLUORINE-CONTAINING SULFONYLAMIDE COMPOUND
Abstract:
The purpose of the present invention is to provide a method for efficiently removing impurities, such as sodium ions, fluoride ions, chloride ions, and fluorosulfate ions, without lowering the yield of a target product. The present invention is characterized by using an aqueous sulfate solution to wash a fluorine-containing sulfonylamide compound selected from the group consisting of fluorine-containing sulfonylamide, a metal salt thereof, an ammonium salt thereof, and a quaternary ammonium salt thereof.