Fast-dissolving, non-caking, food grade sodium tripolyphosphate

Details Fast-dissolving, non-caking, food grade sodium tripolyphosphate Fast-dissolving, non-caking, food grade sodium tripolyphosphate

1988-08-16

1989-08-15

Heller, Gregory A.

Chemistry of inorganic compounds

Phosphorus or compound thereof

Oxygen containing

423305, C01B 1516, C01B 2526

Patent

active

048572870

ABSTRACT:
A fast-dissolving, non-caking, food grade sodium tripolyphosphate is produced by spraying into a spray dryer an aqueous sodium orthophosphate feed liquor having an Na.sub.2 O:P.sub.2 O.sub.5 ratio of from about 1.60 to about 1.67 containing potassium hydroxide or a soluble potassium salt in amounts to yield about 0.4% to 0.8% by weight potassium in the final product, heating the feed to at least 440.degree. C. to form sodium tripolyphosphate, cooling the sodium tripolyphosphate and adding to it at least about 1% by weight moisture.

REFERENCES:
patent: 3054656 (1962-09-01), Cassidy et al.
patent: 3361675 (1968-01-01), Fuchs et al.
patent: 3431069 (1969-03-01), Hudson et al.
patent: 3446580 (1969-05-01), Fuchs
patent: 3600317 (1971-08-01), Lintner

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