Process for producing a stabilized phosphoric acid

Details Process for producing a stabilized phosphoric acid Process for producing a stabilized phosphoric acid

1982-12-02

1984-04-10

Heller, Gregory A.

Chemistry of inorganic compounds

Phosphorus or compound thereof

Oxygen containing

423308, 423310, 423317, 71 33, 71 43, C01B 2516, C01B 1516, C01B 2526, C05B 1100

Patent

active

044420811

ABSTRACT:
A wet process phosphoric acid which has been treated with aluminosilicate after the first stage of clarification can be further stabilized against precipitation of solids during storage and transport and the solids from the crystallizer more economically used to make diammonium and triple superphosphate fertilizers by introducing a second stage of clarification of the acid at a P.sub.2 O.sub.5 concentration of 38 to 42 weight percent.

REFERENCES:
patent: 3907680 (1975-09-01), Hill
patent: 4110422 (1978-08-01), Hill
patent: 4364912 (1982-12-01), Hill

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