Dynamic adsorption properties of Kr and Xe isotopes in charcoal |
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Authors: | C. L. Sun J. C. Chen Y. W. Yu H. C. Ha C. S. Lu T. Y. Lee |
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Affiliation: | (1) Reprocessing Programme, Indira Gandhi Centre for Atomic Research, 603 102 Kalpakkam, (India) |
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Abstract: | Some batches of233U oxide product obtained from the reprocessing treatment of irradiated thorium rods, called J-rods in our plant, have been found to contain thorium as much as 85% and iron above 5% as impurities. This product has to be purified before sending for fabrication of the fuel. The present purification method consists of the following three steps: (1) preferential dissolution of U3O8 as compared to thoria, (2) a novel solvent extraction process, and (3) preferential precipitation of Th as oxalate leaving behind the entire U in the filtrate. Development and application of the present purification method to the above233U oxide proxduct are presented in this paper. |
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