Detergent powders and processes for preparing them

Details Detergent powders and processes for preparing them Detergent powders and processes for preparing them

C - Chemistry, Metallurgy

11

D

134/3.72

C11D 17/06 (2006.01) C11D 3/12 (2006.01) C11D 3/37 (2006.01) C11D 11/02 (2006.01)

Patent

CA 1303938

ABSTRACT A spray-dried zero-phosphate powder suitable as a base for a detergent composition contains anionic surfactant, optional nonionic surfactant, aluminosilicate builder, polymeric polycarboxylate and a low or zero level of electrolyte, preferably sodium carbonate. The powder has a particle porosity of less than 0.40. If desired, sodium sulphate or other solids of small particle size and high bulk density may be postdosed to the spray-dried powder to give detergent compositions of very high bulk density.

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