Re-post precipitation control

Chemistry of inorganic compounds – Phosphorus or compound thereof – Oxygen containing

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423321R, C01B 2516

Patent

active

042501547

ABSTRACT:
Prevention of re-post precipitation in concentrated wet process phosphoric acid by heating the acid at 55.degree. to 85.degree. C. thereby to dissolve solids without substantial re-post precipitation.

REFERENCES:
patent: Re29149 (1977-03-01), Young
patent: 3361187 (1968-01-01), Hudson et al.
patent: 4110422 (1978-08-01), Hill

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