Process for the purification of an alkanesulphonyl chloride and

Details Process for the purification of an alkanesulphonyl chloride and Process for the purification of an alkanesulphonyl chloride and

1997-04-24

1998-09-01

Killos, Paul J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfur halides

C07C14370

Patent

active

058012834

ABSTRACT:
The process for the purification of an alkanesulphonyl chloride (ASC) in order to reduce the sulphate content thereof consists in washing the alkanesulphonyl chloride with water or with an aqueous solution of an acid having a pH of between -0.57 and 7 and then in separating the alkanesulphonyl chloride thus purified from the aqueous phase.
This purified ASC leads, by total hydrolysis, to alkanesulphonic acid with a low content of sulphuric acid.

REFERENCES:
patent: 4549993 (1985-10-01), McElligott, Jr.
patent: 4876048 (1989-10-01), Gardner et al.
patent: 4938846 (1990-07-01), Comstock et al.

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