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

• Main Authors: NISHIO TAKU, TANO TETSUO, YOSHIYA MASAHISA
• Format: Patent
• Language: Chinese; English
• Published: 24.03.2004
• 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

α-磺基脂肪酸烷基酯盐的制备方法，该方法包括以下步骤：在着色抑制剂的存在下，使脂肪酸烷基酯与磺化气体接触，进行磺化的磺化步骤；用低级醇将该磺化步骤的生成物酯化的酯化步骤；酯化步骤后再进行中和，得到中和产物的中和步骤；将该中和产物漂白，得到漂白产物的漂白步骤；以及优选将该漂白产物进行除臭的除臭步骤。由此，可简化α-磺基脂肪酸烷基酯盐的制备工艺，并可得到近于白色的浅色、且臭味少等理想状态的α-磺基脂肪酸烷基酯盐。 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.