Method for preparing ammonium hydroxyalkyl sulfonates and ammoni

Details Method for preparing ammonium hydroxyalkyl sulfonates and ammoni Method for preparing ammonium hydroxyalkyl sulfonates and ammoni

1995-07-28

1998-04-14

MacMillan, Keith

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

Organic compounds

Fatty compounds having an acid moiety which contains the...

562112, C07C 5300

Patent

active

057393656

ABSTRACT:
A method is disclosed for preparing ammonium hydroxyalkyl sulfonate by a process of reacting ammonium bisulfite and alkylene oxide wherein the pH is maintained at a relatively low value throughout most of the time of reaction of ammonium bisulfite and alkylene oxide in order to minimize the quantity of impurities, e.g. alkylene glycol and alkanolamine, in the ammonium hydroxyalkyl sulfonate. Ammonium alkanoyl alkyl sulfonates prepared by reacting such ammonium hydroxyalkyl sulfonates with fatty acids form aqueous solutions which are clear at ambient temperatures, and thus are useful as surfactants in clear liquid products.

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