High absorptivity sodium tripolyphosphate

Details High absorptivity sodium tripolyphosphate High absorptivity sodium tripolyphosphate

C - Chemistry, Metallurgy

01

B

23/64

C01B 25/41 (2006.01)

Patent

CA 1307902

HIGH ABSORBTIVITY SODIUM TRIPOLYPHOSPHATE ABSTRACT High absorbtivity sodium tripolyphosphate is prepared by moisturizing the anhydrous orthophosphate particles produced by spray-drying an aqueous solution of sodium phosphates during the production of sodium tripolyphosphate. Following moisturization, the hydrated particles are calcined at a temperature within the range of from about 300°C to about 600°C to produce a granular sodium tripoly- phosphate product having an absorbtivity value of at least about 30%.

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