Sodium tripolyphosphate, method of obtaining it and...

Details Sodium tripolyphosphate, method of obtaining it and... Sodium tripolyphosphate, method of obtaining it and...

C - Chemistry, Metallurgy

01

B

23/64

C01B 25/41 (2006.01)

Patent

CA 1189679

ABSTRACT OF THE DISCLOSURE The invention relates to an anhydrous sodium tripolyphosphate which has an apparent density of from 0.5 to 1.1, a mean agglomerate size of less than 100 microns and a phase 1 content from 15 to 60%, and which does not contain any insoluble substances. This new product is useful in the food and detergent industries. A method for making the new tri- polyphosphate is described. Wherein a solution of alkaline phosphates is prepared, with an Na/P ratio of from 1.64 to 1.70, by adjusting the ratio to the Na/P ratio required in the final product; the solution is fed along the axis of a symmetrical vortical flow, into the low pressure zone of said flow; and the product obtained is collected.

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