Phosphates in manganese catalyzed bleach compositions

Details Phosphates in manganese catalyzed bleach compositions Phosphates in manganese catalyzed bleach compositions

C - Chemistry, Metallurgy

11

D

8/87

C11D 3/39 (2006.01)

Patent

CA 1252962

ABSTRACT OF THE DISCLOSURE A bleaching composition is disclosed wherein the bleach catalyst is an aggregate comprising manganese (II) cations adsorbed onto an aluminosilicate support, ? binder and a phosphate salt; the aggregates have a diameter ranging from at least 250 to about 2000 microns, which aggregates, upon dispersion in water for two minutes at pH 10 and 40°C, ?eave undissolved less than 5% particles of 125 microns or higher. The base detergent powder comprises a phosphate salt and a peroxy compound. It was found that bleach performance improves by having phosphate salt both in the aggregate and in the detergent powder base.

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