Process for making high density detergent composition using...

Details Process for making high density detergent composition using... Process for making high density detergent composition using...

C - Chemistry, Metallurgy

11

D

C11D 17/06 (2006.01) C11D 11/00 (2006.01)

Patent

CA 2229482

A process for preparing high density detergent agglomerates having a density of at least 650 g/l is provided. The process includes the steps of: (a) agglomerating an aqueous surfactant paste and dry detergent material in a mixer/densifier so as to form detergent agglomerates having a density of at least about 650 g/l; and (b) inputting air into the mixer/densifier while agglomerating the aqueous surfactant paste and the dry detergent material, wherein the air has a relative humidity below the equilibrium relative humidity of the detergent agglomerates such that at least a minor amount of water from the surfactant paste is absorbed by the air.

La présente invention concerne un procédé de préparation d'agglomérats de détergents de forte concentration, au moins 650 g/l. Ce procédé comprend les opérations suivantes: a) agglomération d'une pâte tensio-active aqueuse et d'un détergent sec dans un malaxeur-densificateur afin de former des agglomérats de détergent ayant une concentration d'au moins environ 650 g/l; b) introduction d'air dans le malaxeur-densificateur pendant qu'on agglomère la pâte tensio-active aqueuse et le détergent sec, l'air ayant une humidité relative inférieure à celle, à l'équilibre, des agglomérats de détergent, de telle sorte qu'au moins une faible quantité d'eau provenant de la pâte tensio-active est absorbée par l'air.

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