Treatment of subterranean uranium-bearing formations

Details Treatment of subterranean uranium-bearing formations Treatment of subterranean uranium-bearing formations

1982-07-22

1984-06-05

Novosad, Stephen J.

Mining or in situ disintegration of hard material

In situ conversion of solid to fluid

Input and output wells

299 5, 423 17, 423 18, E21B 4328, E21C 4114

Patent

active

044524900

ABSTRACT:
A process is described for improving yields and leaching rates of mineral values in highly reducing uranium-bearing formations, while minimizing deleterious environmental impact, by injecting an oxidant such as gaseous air or O.sub.2 into the formation prior to leaching. The preoxidation may be enhanced by the presence of CO.sub.2 gas in the pre-leaching oxidant. The process is particularly suitable for systems employing a CO.sub.2 /O.sub.2 lixiviant. The presence of sulfate ion further improves the leaching rate of such a system.

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