Process for producing granular detergent components or...

C - Chemistry – Metallurgy – 11 – D

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C11D 3/08 (2006.01) C11D 3/12 (2006.01) C11D 3/37 (2006.01) C11D 17/06 (2006.01) C11D 1/02 (2006.01) C11D 1/66 (2006.01)

Patent

CA 2216813

The invention relates to a process for the preparation of a granular detergent composition or component having a bulk density greater than 650 g/l which has greater ease and flexibility of processing. The process comprises the step of dispersing a liquid binder throughout a powder stream in a high speed mixer to form granular agglomerates, wherein the powder stream comprises a powder consisting essentially of crystalline zeolite A, P, X, or mixtures thereof, and crystalline zeolite HS. It is preferred that the ratio of zeolite A, P, X, or mixtures thereof, to crystalline zeolite HS is from 1:1 to 99:1, preferably from 3:1 to 20:1, and that the powder has an oil absorbing capacity of at least 40 ml/100g, more preferably at least 45 ml/100g, most preferably at least 50 ml/100g.

L'invention se rapporte à un procédé de préparation d'une composition ou d'un composant détersif granulaire dont la masse volumique en vrac est supérieure à 650 g/l et qui présente une plus grande facilité et flexibilité de traitement. Le procédé consiste à disperser un liant liquide dans un courant de poudre d'un mélangeur à grande vitesse afin d'obtenir des agglomérats granulaires. Ce courant de poudre comprend une poudre composée principalement de zéolites A, P, X cristallines ou de mélanges de celles-ci, et de zéolite HS cristalline. Il est préférable que le rapport des zéolites A, P, X et des mélanges de celles-ci et de la zéolite HS cristalline soit compris entre 1:1 et 99:1, de préférence entre 3:1 et 20:1, et que la poudre ait une capacité d'absorption d'huile d'au moins 40 ml/100 g, de préférence d'au moins 45 ml/100 g, et idéalement d'au moins 50 ml/100 g.

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