Production of stabilized wet process phosphoric acid

Details Production of stabilized wet process phosphoric acid Production of stabilized wet process phosphoric acid

1977-07-01

1978-08-29

Vertiz, O. R.

Chemistry of inorganic compounds

Phosphorus or compound thereof

Oxygen containing

71 32, 423321R, C01B 2516

Patent

active

041104226

ABSTRACT:
Treatment of wet process phosphoric acid to inhibit post-precipitation by steps including addition of an aluminum silicate material such as perlite or the like to dilute acid from which a major portion of solids has been removed, concentration of the resulting dilute acid, and removal of resulting precipitate.

REFERENCES:
patent: 2883266 (1959-04-01), Hodges et al.
patent: 2987376 (1961-06-01), Gloss
patent: 3141734 (1964-07-01), Itilinger
patent: 3151941 (1964-10-01), Hollingsworth et al.
patent: 3193351 (1965-07-01), Miller et al.
patent: 3528771 (1970-09-01), Shearon et al.
patent: 3907680 (1975-09-01), Hill
patent: 4048289 (1977-09-01), Pierres

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