Chemistry of inorganic compounds – Phosphorus or compound thereof – Oxygen containing
Patent
1978-03-06
1979-08-14
Vertiz, O. R.
Chemistry of inorganic compounds
Phosphorus or compound thereof
Oxygen containing
71 32, C01B 2516
Patent
active
041645502
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: 4110422 (1978-08-01), Hill
Harness Charles L.
Roy Thomas W.
Vertiz O. R.
W. R. Grace & Co.
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