Process for making a high density granular detergent...

C - Chemistry – Metallurgy – 11 – D

Patent

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C11D 17/06 (2006.01) C11D 1/00 (2006.01) C11D 1/83 (2006.01) C11D 11/00 (2006.01) C11D 11/02 (2006.01)

Patent

CA 2305351

A process which produces a compact granular detergent composition directly from mid-chain branched surfactants and other starting detergent ingredients is disclosed. The mid-chain branched surfactants are mid-chain branched primary alkyl sulfate surfactants and mid-chain branched primary alkyl alkoxylated sulfate surfactants having an average of greater than 14.5 carbon atoms. The process involves mixing a surfactant paste and drying detergent ingredients, spray drying the resulting slurry, compacting the spray dried granules, grinding and coating the granules to form the finished detergent product.

L'invention concerne un procédé qui permet de produire une composition détergente granulaire directement à partir de tensioactifs ramifiés en milieu de chaîne ou d'autres ingrédients détergents de départ. Lesdits tensioactifs ramifiés en milieu de chaîne sont des tensioactifs de sulfate d'alkyle primaire ramifiés en milieu de chaîne et des tensioactifs de sulfate alcoxylé d'alkyle primaire ramifiés en milieu de chaîne présentant en moyenne plus de 14,5 atomes de carbone. Le procédé consiste à mélanger une pâte de tensioactifs et des ingrédients détergents séchés, à sécher la bouillie résultante par pulvérisation, à compacter lesdites granules obtenues par pulvérisation, à broyer et enduire les granules pour former le produit détergent fini.

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