Phosphate process

Details Phosphate process Phosphate process

1974-10-25

1977-03-15

Vertiz, Oscar R.

Chemistry of inorganic compounds

Phosphorus or compound thereof

Oxygen containing

423311, 423319, 423167, C01B 1516, C01B 2526, C01B 2516

Patent

active

040124916

ABSTRACT:
Phosphate values of high purity and concentration may be efficiently recovered from a wide range of phosphatic-mineral-containing materials including as-mined phosphate ore by leaching such ore with a dilute aqueous mixture of sulfuric and hydrochloric or nitric acid, and precipitating phosphate values as dicalcium phosphate. This product, which is already suitable for use in animal feed and agricultural fertilizer, can also be readily converted to the many other agricultural and industrial phosphate products without costly purification operations or means of control of pollution to the surrounding environment.

REFERENCES:
patent: 2115150 (1938-04-01), Seyfried
patent: 2857245 (1958-10-01), Fallin

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