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Abstract

In this process for producing a fluorine-containing sulfonylimide compound, a process for producing a fluorine-containing sulfonylimide compound ((Rf¹SO₂)(Rf²SO₂)₂N.M) is employed that comprises a first step of obtaining a reaction liquid by reacting a perfluoroalkylsulfonyl fluoride (Rf¹SO₂F) with ammonia, a second step of obtaining a mixture containing an alkaline metal salt of a perfluoroalkylsulfonamide (Rf'SO₂NH.M) by reacting the reaction liquid with at least one type of alkaline metal compound selected from among hydroxides, carbonates and bicarbonates of alkaline metals M of either Li, Na or K, and a third step of reacting the mixture with a perfluoroalkylsulfonyl halide (Rf²SO₂X), wherein Rf¹ and Rf² represent linear or branched perfluoroalkyl groups having 1 to 4 carbon atoms, and X represents fluorine or chlorine.

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First Claim