Verfahren zur Herstellung von a-Sulfonfettsäurealkylestersalzen

• Main Authors: MIYAWAKI, YOZO, YOSHIYA, MASAHISA, TANO, TETSUO, NISHIO, TAKU, MATOBA, SEIJI
• Format: Patent
• Language: German
• Published: 14.08.2002
• Edition: 7
• 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

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.