Production of anionic surfactant granules by in situ...

Details Production of anionic surfactant granules by in situ... Production of anionic surfactant granules by in situ...

C - Chemistry, Metallurgy

11

D

C11D 11/00 (2006.01) C11D 11/04 (2006.01)

Patent

CA 2420291

In a process for producing detergent particles, an acid precursor of an anionic surfactant and a solid neutralising agent are fed into a horizontal thin-film evaporator/drier where they are neutralised, granulated and dried. The neutralising agent is present in an amount equal to or in excess that required for stoichiometric neutralisation and has a D50 mean particle size of less than 40 µm.

Dans un processus de production de particules de détergent, un précurseur d'acide d'un tensioactif anionique et un agent neutralisant sont amenés dans un évaporateur/sécheur horizontal à couche mince dans lesquels ils sont neutralisés, transformés en granules et séchés. L'agent neutralisant est présent en une quantité égale à ou dépassant celle nécessaire à la neutralisation stoïchiométrique et présente une grosseur particulaire moyenne D50 de moins de 40 µm.

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