Leach method including means to protect ion exchange resin

Details Leach method including means to protect ion exchange resin Leach method including means to protect ion exchange resin

1978-11-24

1981-11-03

Miller, Edward A.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423 16, 423 17, 299 4, 210668, 210682, C01G 4300

Patent

active

042985781

ABSTRACT:
A method 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 recovery method without the risk of the fresh eluant causing oxidative degradation of the resins.

REFERENCES:
patent: 2780514 (1957-02-01), Lutz
patent: 2873169 (1959-02-01), Seaborg et al.
patent: 4024215 (1977-05-01), Caropreso et al.
patent: 4098691 (1978-07-01), Filby
patent: 4105253 (1978-08-01), Showalter
patent: 4155982 (1979-05-01), Hunkin et al.

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