Abstract: A process for base hydrolysis of a fluorinated sulphonyl fluoride by treatment of the fluoride with at least one mole equivalent of water in a basic solvent for a sufficient time to obtain a salt of a corresponding fluorinated sulphonic acid with the basic solvent and separating the obtained salt from the solution, wherein the basic solvent is selected from the group of tertiary amines.

Abstract: Process for the preparation of a fluorinated sulphonic acid compound by hydrolysis of a corresponding fluorinated sulphonyl fluoride, wherein the hydrolysis is carried out in the presence of a tertiary amine, comprising steps of recovering a mixture of a salt of hydrolysed fluorinated sulphonyl fluoride with the tertiary amine and an ammonium fluoride salt of the tertiary amine;reacting the salt mixture with a sulphonyl compound of the general formula R--SO.sub.2 X, whereinR=an alkyl group, Cl, F;andX=Br, Clthereby exchanging fluoride of the ammonium fluoride salt in the mixture with the X atom of the sulphonyl compound and converting the sulphonyl compound to a sulphonyl fluoride; anddistilling off the sulphonyl fluoride from the reacted salt mixture.

Abstract: Process for the electrochemical fluorination of a hydrocarbon substrate in the presence of a HF-containing electrolyte under electrochemical fluorination conditions to a fluorinated product and a hydrogen gas by-product, the improvement of which comprises additional steps of(a) continuously separating the formed fluorinated product from the electrolyte by extracting the electrolyte with an extraction agent,(b) continuously separating residual amounts of the fluorinated product from the hydrogen gas by-product by extraction of the gas with an extraction agent; and(c) recovering the fluorinated product by distillation of the extraction agent from step (a) and step (b).