Process for in-situ leaching of uranium

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

E - Fixed Constructions

21

B

166/31

E21B 43/27 (2006.01) C22B 60/02 (2006.01) E21B 43/28 (2006.01)

Patent

CA 1145668

Abstract of the Disclosure 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.

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