C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
134/16
C11D 3/08 (2006.01) C11D 3/06 (2006.01) C11D 3/12 (2006.01)
Patent
CA 1115620
GRANULATE CONSISTING OF HYDRATED SODIUM TRIPOLYPHOSPHATE AND WATER-INSOLUBLE ALUMINO SILICATE ION EXCHANGER MATERIAL ABSTRACT OF THE DISCLOSURE The invention provides a granulate comprising particles having sizes substantially within the range 0.15 to 1.25 mm, the granulate consisting of: a) about 1 to 99 weight% of partially or completely hydrated sodium tripolyphosphate containing water of hydration in a proportion of at least about 10 weight%, based on the theoretically possible water content, the anhydrous sodium tripolyphosphate containing about 20 to 90 weight% of phase-I- material prior to its being hydrated, the balance being phase-II, and b) about 99 to 1 weight% of a water-insoluble alumino silicate ion exchanger material of the general formula (Cat 2/n0)x ? Me2O3 ? (SiO2)y ? zH2O in which Cat stands for a calcium exchangeable cation with the valency n, x is 0.7 to 1.5, Me stands for boron or aluminum, y is 0.8 to 6, and z is 1.8 to 13.5. The invention also includes a spray process for making a granulate as just specified. The present granulate can be made with a particle size distribution which gives it particular utility as a detergent composition constituent.
327861
Kandler Joachim
Sorbe Gunter
Wasel-Nielen Horst-Dieter
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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