CPC C07C 303/22 (2013.01) [B01J 27/16 (2013.01); C07C 309/15 (2013.01); C07C 2527/173 (2013.01)] | 7 Claims |
1. A process for making an N-alkyl taurate amide comprising reacting a C8 to C20 fatty acid with an alkali metal salt of an N-alkyl taurine, wherein:
a) the molar ratio of the fatty acid to alkali metal salt is 1.5:1 to 10:1;
b) a reaction temperature is from 180° C. to 250° C.;
c) a catalyst is used in an amount of 0.1 to 0.7 wt %, based on the active weight of the catalyst in the total weight of the reaction mixture;
d) a reaction time is 1 to 10 hours; and
e) the catalyst is phosphoric acid.
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