Process for the preparation of flowable, anhydrous...

C - Chemistry – Metallurgy – 07 – C

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C07C 309/12 (2006.01) C07C 303/32 (2006.01) C11D 1/12 (2006.01) C11D 17/00 (2006.01)

Patent

CA 2176086

In the process of the invention, in the context of the esterification of fatty acids with hydroxyalkane- sulfonates, the reaction product (molten mass) at 180 to 250°C is sheared in such a manner during the cooling to 150 to 50°C that the mean particle size of the product is < 100 µm. The acyloxyalkanesulfonate product thus obtained is still highly flowable, pumpable and the like, even at temperatures in the range from 60 to 100°C and can be stored in the fluid state without change at these temperatures even over a long period.

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