METHOD FOR PRODUCING FLUOROSULFONYLIMIDE SALT

摘要

PROBLEM TO BE SOLVED: To provide a method which can improve the yield of a fluorosulfonylimide salt by a simple method without significantly changing conventional facilities. SOLUTION: The method for producing the fluorosulfonylimide salt includes a step of fluorinating chlorosulfonylimide or a salt thereof and a step of extracting and separating fluorosulfonylimide or a salt thereof, and further includes a step of recovering a fluorosulfonylimide salt from an extraction residue separated in the extraction separation step. COPYRIGHT: (C)2011,JPO&INPIT