C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
241/129, 23/64
C01B 25/41 (2006.01)
Patent
CA 1115928
ABSTRACT: Screen undersize sodium tripolyphosphate (STPP) particles are compacted, milled and moisturized by adding a sufficient amount of water thereon to produce a material containing on the average between about 15% and about 35% by weight moisture. The moisturized material is calcined to a temperature within the range of from about 300 to about 600°C, to produce a granular STPP product having a low friability, high absorptiv- ity, and a bulk density within the range of om about 0.65 to about 0.87 g/cc.
342467
Beger Robert W.
Church Delmar F.
Hensler Paul L.
Astaris Llc
Osler Hoskin & Harcourt Llp
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