Process for the in-situ leaching of uranium

Details Process for the in-situ leaching of uranium Process for the in-situ leaching of uranium

1979-05-07

1982-07-20

Pate, III, William F.

Mining or in situ disintegration of hard material

In situ conversion of solid to fluid

Input and output wells

299 5, E21C 4114

Patent

active

043402526

ABSTRACT:
Process for the in-situ leaching of uranium from a subterranean ore deposit comprising introducing into the deposit an aqueous lixiviant formulated from a dilute sulfuric acid solution which also contains carbon dioxide. The lixiviant has a pH within the range of 1.0-2.5. The lixiviant may also contain an alkali metal sulfate such as sodium sulfate. The process is particularly applicable to subterranean deposits containing uranium associated with carbonaceous material.

REFERENCES:
patent: 2954218 (1960-09-01), Dew et al.
patent: 3309141 (1967-03-01), Fitch
patent: 3713698 (1973-01-01), Rhoades
patent: 4105253 (1978-08-01), Showalte
Merrit, R. C., The Extractive Metallurgy of Uranium, Colo. School of Mines, Research Institute, USA, 1971, pp. 62, 63, 109-111.

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