In-situ leaching of uranium

Details In-situ leaching of uranium In-situ leaching of uranium

E - Fixed Constructions

21

B

166/30

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

Patent

CA 1108525

IN-SITU LEACHING OF URANIUM Abstract of the Disclosure Process for the in-situ leaching of uranium from a subterranean ore deposit comprising introducing into the deposit an aqueous lixiviant having a pH of at least 6.0 and containing an alkali metal sulfate leaching agent. The alkali metal sulfate may be employed in combination with an alkali metal carbonate or bicarbonate with the sulfate comprising the predominant leaching agent. The lixiviant may be at a pH of at least 7.5 and contain an alkali metal sulfate leaching agent and a hypochlorite oxidizing agent. -1-

326521

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