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PROCESS FOR THE PRODUCTION OF A SODIUM TRIPOLYPHOSPHATE HEXAHYDRATE WITH A HIGH ABSORBANT CAPABILITY, AND TRIPOLYPHOSPHATE PREPARED BY THIS PROCESS
PROCESS FOR THE PRODUCTION OF A SODIUM TRIPOLYPHOSPHATE HEXAHYDRATE WITH A HIGH ABSORBANT CAPABILITY, AND TRIPOLYPHOSPHATE PREPARED BY THIS PROCESS
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机译:生产具有高吸收能力的四磷酸三钠六水合物的方法,以及通过该方法制备的三磷酸二氢钠
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摘要
Solid, free-flowing, essentially nonfriable powdery detergent particulates of recrystallized sodium tripolyphosphate hexahydrate having high absorption capacity and a pore volume of at least 0.70 cm3/g, at lest 80% of the intercrystalline porosity thereof comprising pore sizes ranging from 0.5 mu m to 30 mu m, are prepared by (i) spraying water or an aqueous medium over a first fraction of anhydrous sodium tripolyphosphate, the majority of which fraction comprises phase 1 tripolyphosphate, (ii) spraying water or an aqueous medium over a separate second fraction of anhydrous sodium tripolyphosphate, which second fraction essentially consists of phase 2 triplyphosphate, (iii) intimately admixing said first and said second sprayed fractions, (iv) suspending the resulting admixture in water or an aqueous medium, and then (v) drying the resulting suspension, e.g., by atomization.
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