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

1982-07-06

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

043379796

ABSTRACT:
Process for the in-situ leaching of uranium from a subterranean ore deposit employing a lixiviant containing an oxidizing agent, sulfuric acid, and carbon dioxide. Prior to the injection of the lixiviant, an aqueous solution of sulfuric acid and oxidizing agent is injected into the deposit in an amount of at least 1 pore volume. The initially injected acid solution is substantially free of carbon dioxide. 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 (1978-01-01), Rhoades
patent: 4043599 (1977-08-01), Lingane
patent: 4105253 (1978-08-01), Showalter
Merritt, R. C., The Extractive Metallurgy of Uranium, Colo. School of Mines, Research Institute, U.S.A., 1971 pp. 62, 63, 109-111.

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