DE2443073

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 po...

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Bibliographische Detailangaben
Hauptverfasser: FUNABASHI, CHIBA, TAKENOUCHI, KUNIYOSHI, TOYODA, SADAO, HARA, NOBORU, TOKIO, OHNO, NORIHIRO, CHOFU, TOKIO
Format: Patent
Sprache:eng
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Zusammenfassung: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.