Foam control during production of phosphoric acid

Details Foam control during production of phosphoric acid Foam control during production of phosphoric acid

1981-08-18

1983-07-05

Heller, Gregory A.

Chemistry of inorganic compounds

Phosphorus or compound thereof

Oxygen containing

423166, 423167, 423319, 252321, C01B 2516

Patent

active

043917844

ABSTRACT:
Foam generated during the digestion of phosphate rock is removed from the slurry either by overflow, mechanical sweeps, or by vacuum from strategically located nozzles connected to vacuum lines. The foam, after liquefaction, is returned to the filter where it results in improved filtration and return of soluble P.sub.2 O.sub.5.

REFERENCES:
patent: 1125897 (1915-01-01), Callow
patent: 3148948 (1964-09-01), Lutz
patent: 3653827 (1972-04-01), Hey et al.

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