Leach method and apparatus including means to protect ion...

Details Leach method and apparatus including means to protect ion... Leach method and apparatus including means to protect ion...

C - Chemistry, Metallurgy

22

B

53/215, 362/41

C22B 60/02 (2006.01)

Patent

CA 1133260

9728 ABSTRACT A method and apparatus for recovering uranium and/or related values which include means for protecting ion-exchange resins in the recovery operation from oxidative degradation due to contact with hydrogen peroxide. A guard chamber is positioned in the elution circuit so that barren eluant, after it is stripped of its uranium and/or related values by treatment with hydrogen peroxide, will flow through the chamber. The guard chamber contains catalytic material, e.g. activated carbon, which decomposes hydrogen peroxide upon contact into water and oxygen. The barren eluant, after it passes through the catalytic material, is used to make up fresh eluant for reuse in the re- covery method without the risk of the fresh eluant causing oxidative degradation of the resins.

334460

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