Processes for making a granular detergent composition...

C - Chemistry – Metallurgy – 11 – D

Patent

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C11D 3/22 (2006.01) C11D 11/00 (2006.01) C11D 11/02 (2006.01) C11D 17/06 (2006.01)

Patent

CA 2352814

A process for continuously preparing detergent agglomerates comprising the steps of continuously mixing a liquid binder comprising of a mixture of surfactants and a copolymer of epichlorohydrin and a cyclic amine moiety and dry detergent materials into a high speed mixer/densifier to obtain detergent agglomerates. The ratio of the liquid binder to the dry detergent material is from about 1:10 to about 10:1, and the dry detergent materials comprise modified carboxy methyl cellulose. The agglomerates are then optionally mixed in a moderate speed mixer/densifier to further densify them. Finally, the detergent agglomerates are dried so as to increase their density.

L'invention concerne un procédé permettant de préparer des agglomérats de détergent, consistant à mélanger en continu un liant liquide comprenant un mélange d'agents tensioactifs, un copolymère d'épichlorohydrine et une fraction d'amine cyclique, avec des matériaux détergents secs, dans un mélangeur/densificateur à vitesse élevée afin d'obtenir des agglomérats de détergent. Le rapport entre le liant liquide et les matériaux détergents secs est compris entre environ 1/10 et 10/1, et les matériaux détergents secs comprennent de la carboxyméthylcellulose modifiée. Les agglomérats sont ensuite éventuellement mélangés dans mélangeur/densificateur à vitesse modérée afin de les densifier ultérieurement. Les agglomérats de détergent sont, finalement, séchés de façon à augmenter leur densité.

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