High catalyst process for glucamide detergents

Details High catalyst process for glucamide detergents High catalyst process for glucamide detergents

C - Chemistry, Metallurgy

07

C

C07C 233/17 (2006.01) C07C 231/02 (2006.01) C07C 233/18 (2006.01) C11D 1/52 (2006.01) C11D 11/04 (2006.01)

Patent

CA 2092193

Improved process for manufacturing a linear glucamide surfactant comprising reacting an N-alkylglucamine, e.g., N-methylglucamine, a fatty ester, e.g., coconut methyl ester and a catalyst at high concentration selected from trilithium phosphate, trisodium phosphate, tripotassium phosphate, tetrasodium pyrophosphate,tetrapotassium pyrophosphate, pentasodium tripoly-phosphate,pentapotassium tripolyphosphate, lithium carbonate, sodium carbonate, potassium carbonate, disodium tartrate, dipotassium tartrate, sodium potassium tartrate, trisodium citrate, tripotassium citrate, sodium basic silicates, potassium basic silicates, sodium basic aluminosilicates, potassium basic aluminosilicates and mixtures thereof.

Méthode améliorée pour préparer un surfactif à base de glucamide linéaire, consistant à faire réagir une N-alkylglucamine, p. ex. la N-méthylglucamine, avec un ester gras, p. ex. l'ester méthylique de noix de coco, en présence d'un catalyseur à forte concentration, choisi parmi les substances suivantes : phosphate de trilithium, phosphate de trisodium, phosphate de tripotassium, pyrophosphate de tétrasodium, pyrophosphate de tétrapotassium, tripolyphosphate de pentasodium, tripolyphosphate de pentapotassium, carbonate de lithium, carbonate de sodium, carbonate de potassium, tartrate de disodium, tartrate de dipotassium, tartrate de potassium et de sodium, citrate de trisodium, citrate de tripotassium, silicates basiques de sodium, silicates basiques de potassium, aluminosilicates basiques de sodium, aluminosilicates basiques de potassium, et leurs mélanges.

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