Method for producing neutral sugar surfactant granulates

Details Method for producing neutral sugar surfactant granulates Method for producing neutral sugar surfactant granulates

C - Chemistry, Metallurgy

11

D

C11D 11/00 (2006.01) B01D 1/22 (2006.01) B01J 2/12 (2006.01) C07H 15/04 (2006.01) C11D 1/52 (2006.01) C11D 1/66 (2006.01) C11D 11/04 (2006.01)

Patent

CA 2287360

The invention relates to a novel method for producing neutral sugar surfactant granulates, wherein aqueous alkaline-adjusted pastes containing a) alkyloligolycosides and/or alkenyloligoglycosides and/or (b) fatty acid N alkylpolyhydroxyalkyamides with a solids content of at least 20 wt. per cent are simultaneously dried in a horizontally arranged thin-layer evaporator or dryer with rotating fixtures until a residual water content of less than 2 wt. per cent is obtained and they are transformed into pieces. The inventive method is characterized in that the sugar surfactant pastes are neutralized immediately before entering the thin-layer apparatus. The products are characterized by a specially high color quality and storage stability.

L'invention concerne un nouveau procédé pour produire des granulés tensioactifs de type sucre neutres, selon lequel des pâtes aqueuses à ajustement alcalin comprenant (a) des alkyloligoglycosides et/ou des alkényloligoglycosides et/ou (b) des N-alkylpolyhydroxyalkylamides d'acide gras et à teneur en solides d'au moins 20 % en poids sont simultanément séchées et transformées en morceaux dans un vaporisateur/séchoir à couche mince disposé horizontalement et muni de pièces intégrées rotatives, jusqu'à ce que la teneur en eau résiduelle soit inférieure à 2 % en poids. Ce procédé se caractérise en ce que les pâtes de tensioactifs de type sucre sont neutralisées immédiatement avant leur entrée dans l'appareil à couche mince. Ces produits se caractérisent par une qualité chromatique et une stabilité au stockage particulièrement élevées.

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