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US 11,999,680 B2Granted
Enhanced conversion of taurine to alkyl taurate amide using phosphoric acid catalysts
AssigneeConopco, Inc.
InventorsErin Whitfield Dunn, Bijan Harichian, Anat Shiloach, John Robert Winters
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Abstract
The invention relates to method of enhancing yield of alkyl taurate amides using enhancing specifically phosphoric acid catalysts. It further relates to the use of phosphoric acid to enhance yield while avoiding and/or reducing undesirable browning.
Claims7
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.
3 more elements
Dependencies are inferred from the claim text.