Patent ID: 8840856

Claim:
A method for producing an imide salt represented by formula [1] wherein, R represents a halosulfonyl group (—SO 2 X 1 where X 1 is a halogen selected form the group consisting of fluorine, chlorine, bromine and iodine) or dihalophosphoryl group (—POX 2 X 3 where X 2 and X 3 are the same or different halogens selected form the group consisting of fluorine, chlorine, bromine and iodine), and M represents an alkali metal, comprising the step of: reacting an alkali metal fluoride, a sulfuryl dihalide (SO 2 X 4 X 5 where X 4 and X 5 represent the same or different halogens selected form the group consisting of fluorine, chlorine, bromine and iodine, and are the same as or different from the above-mentioned X 1 ) or phosphoryl halide (P(═O)X 6 X 7 X 8 where X 6 , X 7 and X 8 represent the same or different halogens selected form the group consisting of fluorine, chlorine, bromine and iodine, and are the same as or different from the above-mentioned X 2 or X 3 ), and ammonia or an ammonium salt, wherein the alkali metal fluoride and the sulfuryl dihalide or phosphoryl halide are made coexistent in the reaction system firstly, followed by bringing ammonia or the ammonium salt into the reaction.