Detergent powders and processes for producing them

Details Detergent powders and processes for producing them Detergent powders and processes for producing them

1985-10-31

1987-02-24

Lieberman, Paul

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

252100, 252136, 252142, 252145, 25217417, 25217423, 25217424, 252DIG2, C11D 312, C11D 720

Patent

active

046456163

ABSTRACT:
The formation of poorly-dispersible material by interaction between sodium silicate and sodium aluminosilicate in a detergent powder can be reduced by acidification of the slurry prior to spray-drying. An acid in an amount equivalent to from 1.5 to 3 parts by weight of hydrogen chloride per 6 parts of sodium silicate of sodium oxide to silica ratio 1 to 1.6 is added to precipitate at least part of the silicate. Optionally, a powder-structurant is present.

REFERENCES:
patent: 3708428 (1973-01-01), McDonald
patent: 3721627 (1973-03-01), Adams et al.
patent: 4007124 (1977-02-01), Collier et al.

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