Phosphoric acid purification

Details Phosphoric acid purification Phosphoric acid purification

1974-01-30

1976-03-30

Vertiz, Oscar R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

423309, 423313, 423321S, C07C 4300, C01B 1516, C01B 2526

Patent

active

039474992

ABSTRACT:
A solid anhydrous 1:1 molar compound of phosphoric acid and diisopropyl ether is prepared from a mixture of the ether and phosphoric acid in a molar ratio (R:1) of 0.6:1 to 1.4:1 at a temperature at least as low as the crystallization temperature (T.degree.C) governed by the relationship T = 25(1.2-R). Treatment of the compound with water or a base produces purified acid or a phosphate respectively.

REFERENCES:
patent: 3318661 (1967-05-01), Schallert et al.
patent: 3367738 (1968-02-01), Schallert et al.
patent: 3707357 (1972-12-01), Chiang

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