PROCEDIMIENTO PARA OBTENER GRANULOS DE TRIPOLIFOSFATO DE SODIO QUE TIENEN BAJA FRIABILIDAD

PROCEDIMIENTO PARA OBTENER GRANULOS DE TRIPOLIFOSFATO DE SODIO QUE TIENEN BAJA FRIABILIDAD

Dense rotary dried sodium tripolyphosphate (STPP) particles having a bulk density of at least 0.9 g/cc and a particle size distribution of 0 to 85% by weight +20 mesh, 15 to 100% by weight -20 +100 mesh and 0 to 20% by weight -100 mesh are moisturized by adding a sufficient amount of water to produc...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DELMAR FLEMING CHURCH, PAUL LECHARD HENSLER, ROBERT WILLIAM REGER
Format: Patent
Sprache:spa
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Beschreibung
Zusammenfassung:Dense rotary dried sodium tripolyphosphate (STPP) particles having a bulk density of at least 0.9 g/cc and a particle size distribution of 0 to 85% by weight +20 mesh, 15 to 100% by weight -20 +100 mesh and 0 to 20% by weight -100 mesh are moisturized by adding a sufficient amount of water to produce a material containing on the average between about 10% and about 30% by weight moisture. The moisturized material is calcined to a temperature within the range of from about 300 DEG to about 600 DEG C., to produce a granular STPP product having low friability, high absorptivity and a bulk density within the range of from about 0.65 to about 0.87 g/cc.