E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/30
E21B 43/28 (2006.01) C22B 3/08 (2006.01) C22B 3/14 (2006.01) C22B 60/02 (2006.01) E21B 43/40 (2006.01)
Patent
CA 1097212
47,443 A SOLUTION MINING METHOD UTILIZING DISSOLVED OXYGEN ABSTRACT OF THE DISCLOSURE A method for leaching mineral values from an underground ore body in situ comprises introducing an oxygen- bearing gas into a pressurized saturation-disengagement chamber located above ground of the ore body where the oxygen-bearing gas becomes dissolved in a leach solution. The leach solution with dissolved oxygen therein is then pumped into the well and through the ore body where the leach solution oxidizes the mineral values in the ore body permitting their solubilization and transport by the leach solution to a recovery well where the pregnant leach solu- tion is pumped above ground. The pregnant leach solution is then treated to remove the mineral values therefrom. Insur- ing that the oxygen-bearing gas is completely dissolved in the leach solution above ground in the saturation-disengage- ment chamber prevents gas bubbles from being pumped into the ore formation, thereby preventing loss of inffectivity.
324630
Kube Wolfram H.
Shuck David L.
Mcconnell And Fox
Wyoming Mineral Corporation
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