Title:
SODIUM TRIPOLYPHOSPHATE HEXAHYDRATE WITH HIGH ABSORBABILITY AND MANUFACTURE
Document Type and Number:
Japanese Patent JPS6117410
Kind Code:
A
Abstract:
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.
Inventors:
DANIERU JIYUBEERU
Application Number:
JP12403885A
Publication Date:
January 25, 1986
Filing Date:
June 07, 1985
Export Citation:
Assignee:
RHONE POULENC CHIM BASE
International Classes:
C01B25/41; (IPC1-7): C01B25/41
Attorney, Agent or Firm:
Hideto Asamura