Novel nitrogen and phosphorus-containing salts

Details Novel nitrogen and phosphorus-containing salts Novel nitrogen and phosphorus-containing salts

1973-11-08

1976-03-02

Vertiz, Oscar R.

Chemistry of inorganic compounds

Phosphorus or compound thereof

Oxygen containing

423315, C01B 1516, C01B 2526

Patent

active

039418960

ABSTRACT:
Modified ammonium polyphosphates which are water-soluble and contain at least one radical selected from the group consisting of borate, sulphate, sulphite, and phosphite produced by admixing component (i) an organic ammoniating and condensing agent, component (ii) a phosphoric acid, the molar proportion of said component (i) to said component (ii) based on the P.sub.2 O.sub.5 content in said component (ii), being from 1.3:1 to 3:1, and component (iii) a compound selected from sulphuric acid, boric acid, boric oxide, phosphorous acid, sulphurous acid and the sodium potassium, calcium, urea and ammonium salts of said compound, the proportion of said component (iii) being from 2 to 1/10 moles per mole of P.sub.2 O.sub.5 in the admixture; and heating until a self-sustaining exothermic reaction occurs whereby said three components react and form said water-soluble modified ammonium polyphosphates. The process of preparing said polyphosphates is also claimed.

REFERENCES:
patent: 3048471 (1962-08-01), Shaver
patent: 3397035 (1968-08-01), Shen et al.
patent: 3397947 (1968-08-01), Shaver
patent: 3457177 (1969-07-01), Kowalski et al.

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