Process for improving granular detergents

Details Process for improving granular detergents Process for improving granular detergents

1974-09-06

1976-11-02

Herbert, Jr., Thomas J.

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

252174, 252385, 427212, 427214, C11D 308, C11D 1100

Patent

active

039896358

ABSTRACT:
A process for improving the properties of granular detergents, that is, caking preventability, fluidity and particle hardness, which comprises spray-coating a coating agent [I] consisting of the silicates, sulfates, carbonates and hydroxides of alkali metals and a coating agent [II] consisting of polyvalent metal sulfates separately onto a granular detergent obtained by the conventional spray granulating method, tumbling granulating method, piston granulating method, pressure granulating method and the like, under a condition in which the granular detergent is in a fluid state; causing a reaction on the surface of the granular detergent particles; and forming thereon a coating film of a water-insoluble or poorly water-soluble substance.

REFERENCES:
patent: 2480579 (1949-08-01), Holuba
patent: 2768095 (1956-10-01), Tadema et al.
patent: 2846401 (1958-08-01), McCarthy et al.
patent: 3154497 (1964-10-01), Mankowich
patent: 3231506 (1966-01-01), Schulerud

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