Preparation of organic acid salts of cationic surfactants
申请人:——
公开号:US08212061B1
公开(公告)日:2012-07-03
The invention pertains to a highly efficient process for preparing a very pure food-grade organic acid salt of a cationic surfactant derived from the condensation of a fatty acid with an esterified dibasic amino acid. The process involves the following steps:
(a) providing a reaction mixture comprising a mineral acid salt of the cationic surfactant and an alkali and/or alkaline earth metal salt of the food-grade organic acid;
(b) allowing the reaction between the mineral acid salt of the cationic surfactant and the alkali and/or alkaline earth metal salt of the food-grade organic acid salt to proceed until substantially all of the mineral acid salt of the cationic surfactant has been converted to the food-grade organic acid salt of the cationic surfactant; and
(c) recovering the food-grade organic acid salt of the cationic surfactant from the reaction mixture.