| abstract |
PURPOSE: To prepare the titled compound useful as a detergent and resistant to the lowering of the ester-content with time, with little hydrolysis of the product, easily, by mixing and neutralizing a liquid α-sulfo-fatty acid ester with powdery solid carbonate and/or bicarbonate. n CONSTITUTION: A liquid α-sulfo-fatty acid ester is mixed and neutralized with (A) a powdery solid carbonate and/or (B) bicarbonate to obtain an α-sulfo-fatty acid ester salt. The amount of the component A and/or B is 1W150mol, preferably 4W60mol per 1mol of the α-sulfo-fatty acid ester. The component A or B is e.g. Na 2 CO 3 , K 2 CO 3 , NaHCO 3 , etc. A detergent composition having high hydrolysis resistance and cleaning property can be prepared by mixing the α-sulfo-fatty acid ester salt produced by the present process with other detergent components (e.g. spray-dried powder). n COPYRIGHT: (C)1986,JPO&Japio |