C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 11/00 (2006.01) C11D 1/14 (2006.01) C11D 1/29 (2006.01) C11D 17/06 (2006.01)
Patent
CA 2297162
The invention concerns a process for preparing solid raw materials for washing agents by simultaneously drying and granulating aqueous pastes of anionic and/or amphoteric surfactants in a horizontal thin film evaporator or drier with rotating fittings, the drying process being carried out at a temperature ranging from 120 to 130 ~C. Hydrolysis-free, light-coloured, pourable products are obtained which have a uniform grain spectrum and high bulk density.
L'invention concerne un procédé de préparation de matières premières détergentes solides par dessiccation et granulation simultanées de pâtes aqueuses de tensioactifs anioniques et/ou amphotères dans un vaporisateur et dessiccateur horizontal à couche mince muni d'éléments rapportés rotatifs. Selon ce procédé, la dessiccation s'effectue à une température comprise entre 120 et 130 ·C. Ce procédé permet d'obtenir des produits coulants de couleur claire, exempts d'hydrolyse, à spectre granulaire régulier et de densité apparente élevée.
Breucker Christoph
Gutsche Bernhard
Lueder Thomas
Scholinakis Konstantinos
Wrede Norbert
Cognis Deutschland Gmbh
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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