Method for making alkanesulphonyl chlorides

Details Method for making alkanesulphonyl chlorides Method for making alkanesulphonyl chlorides

C - Chemistry, Metallurgy

07

C

C07C 303/16 (2006.01) C07C 309/04 (2006.01)

Patent

CA 2422653

The invention concerns a method for making alkanesulphonyl chloride RCH¿2?-SO¿2?CI by oxidising chlorinolysis of the corresponding mercaptan RCH¿2?-SH, mercaptan and water being introduced in the reaction mixture in the form of a water dispersion in mercaptan. Said process results both in very high quality alkanesulphonyl chloride and commercial grade hydrochloric acid.

Dans le procédé selon l'invention pour la fabrication d'un chlorure d'alcane- sulfonyle RCH2-SO2CI par chlorolyse oxydante du mercaptan RCH2-SH correspondant, le mercaptan et de l'eau sont introuduits dans le mélange réactionnel sous forme d'une dispersion d'eau dans le mercaptan. Ceci permet d'obtenir à la fois un chlorure d'alcanesulfonyle de très bonne qualité et un acide chlorhydrique de qualité commerciale.

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