Method to improve acidulation quality of Idaho phosphate rock

Details Method to improve acidulation quality of Idaho phosphate rock Method to improve acidulation quality of Idaho phosphate rock

1985-04-29

1986-08-19

Doll, John

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkaline earth metal

423319, 423320, C01B 2516

Patent

active

046068970

ABSTRACT:
Phosphate rock, containing appreciable quantities of organic impurities, is thermally treated under controlled conditions to fully utilize the fuel values of the organic matter contained therein. This process is beneficial for treating deposits of unaltered Idaho rock containing both higher grade phosphate rock and lower grade phosphatic shales and recovering therefrom substantially all the phosphate values as a rock product rendered more acceptable for acidulation to wet-process phosphoric acid.

REFERENCES:
patent: 4325928 (1982-04-01), Lowe
patent: 4389380 (1983-06-01), Parks

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