Method for producing a fatty acid alkyl ester sulfonate metal salt powder having a sharp particle size distribution and fatty acid alkyl ester sulfonate metal salt solids

摘要

A (1) a fatty acid alkyl ester sulfonate metal salt solids, heat absorption peak area at 50~130 ℃ as measured by a differential scanning thermal analyzer is, relative to the total absorption peak area at 0~130 ℃ The fatty acid alkyl ester sulfonate metal salt solids which is characterized in that it is 50% or more. Is characterized in that the temperature of the pulverizer internal grinding at a temperature of 50 ℃ below 30 ℃ or higher fatty acid alkyl ester sulfonate metal salt solid (2) of the above (1), fatty acid alkyl ester sulfonate metal salt powder method of manufacturing.