METHOD FOR PREPARING SULPHONATE SALTS

摘要

The invention concerns a method for preparing sulphonate salts, alkaline or alkaline-earth, corresponding to anion of general formula (I): (R-CF2-SO3<->)n, through alkaline hydrolysis of sulphonyl chlorides corresponding to formula (II). The invention is characterised in that it comprises at least a step which consists in alkaline hydrolysis of sulphonyl chloride carried out in the presence of a phase-transfer agent.