Process for producing alpha-sulfo-fatty acid alkyl ester salt

By conducting a sulfonation step for bringing a fatty acid alkyl ester into contact with a sulfonating gas in the presence of a coloring inhibitor to sulfonate the fatty acid alkyl ester, an esterification step for esterifying the product of the sulfonation step with a lower alcohol, a neutralizatio...

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Bibliographic Details
Main Authors NISHIO TAKU, TANO TETSUO, YOSHIYA MASAHISA
Format Patent
LanguageEnglish
Published 25.09.2002
Edition7
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES
CANDLES
CHEMISTRY
DETERGENT COMPOSITIONS
DETERGENTS
FATTY ACIDS THEREFROM
METALLURGY
ORGANIC CHEMISTRY
RECOVERY OF GLYCEROL
RESIN SOAPS
SOAP OR SOAP-MAKING
USE OF SINGLE SUBSTANCES AS DETERGENTS
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Summary:By conducting a sulfonation step for bringing a fatty acid alkyl ester into contact with a sulfonating gas in the presence of a coloring inhibitor to sulfonate the fatty acid alkyl ester, an esterification step for esterifying the product of the sulfonation step with a lower alcohol, a neutralization step for neutralizing the esterified product of the esterification step to obtain a neutralized product, a bleaching step for bleaching the neutralized product to obtain a bleached product, and preferably an optional deodorization step for deodorizing the bleached product, the production process can be simplified and alpha-sulfofatty acid alkyl ester salts which have a pale color close to white and preferably have less odor can be obtained.
Bibliography:Application Number: CN20008012008