Detergent compositions and process for preparing them

Details Detergent compositions and process for preparing them Detergent compositions and process for preparing them

C - Chemistry, Metallurgy

11

D

134/3.7

C11D 1/22 (2006.01) C11D 11/04 (2006.01) C11D 17/06 (2006.01)

Patent

CA 2034244

A batch process for the preparation of detergent powder of high bulk density comprises neutralising a detergent acid (anionic surfactant precursor), eg linear alkylbenzene sulphonic acid, with a particulate solid water-soluble alkaline inorganic material, for example, sodium carbonate (optionally plus other alkaline materials and/or detergency builders, for example, alkali metal aluminosilicate), in a high-speed mixer/granulator, eg Fukae mixer, and granulating the product in the mixer. The reaction mixture remains particulate throughout the process, without the need to keep the temperature during the neutralisation step to 55°C or below, and a high-quality high-bulk-density particulate product is obtained.

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