Process for the preparation of crystalline calcium sodium metaph

Details Process for the preparation of crystalline calcium sodium metaph Process for the preparation of crystalline calcium sodium metaph

1986-12-08

1988-03-08

Doll, John

Compositions

Miscellaneous

423306, C01B 2530

Patent

active

047298383

ABSTRACT:
Crystalline calcium sodium metaphosphate is prepared by (a) forming a wet mix slurry having a composition on a dry basis equivalent to a CaO/Na.sub.2 O/P.sub.2 O.sub.5 mol percent ratio of about 24.0-34.0/12.0-18.0/50.0-60.0, with the proviso that the CaO/Na.sub.2 O mol ratio is from about 1.60 to about 2.00, (b) forming and growing product crystals of calcium sodium metaphosphate under crystal formation and growth conditions between the solid phase of the wet mix slurry and substrate crystals of calcium sodium metaphosphate.

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