SEPARATION OF URANIUM FROM FISSION PRODUCTS USING ALUMINA
Adsorption of fission products by alumina from irradiated uranyl nitrate in non-aqueous media such as ether, ester, or ketone was investigated. Uranyl nitrate containing fission products was dissolved in an organic solvent, in which water is slightly soluble, and this solution was passed through a column of alumina. Nearly all the fission products were retained on the column while the uranium passed through almost unadsorbed. Of the fission products, ruthenium and cesium were less strongly adsorbed and caused the contamination of the uranyl solution. Yet, the elution of cesium could be reduced by adding acid clay to the alumina. The K/sub d/ values of fission products for alumina were found to decrease with the increase of uranyl concentration in the solvent. Free nitric acid should be eliminated because it greatly reduces the adsorption of ruthenium and zirconium. The adsorption of fission products was not influenced by the uranium which was also adsorbed. (auth)
- Research Organization:
- Tokyo Shibaura Electric Co., Kawasaki, Japan
- NSA Number:
- NSA-16-016459
- OSTI ID:
- 4791013
- Journal Information:
- J. Inorg. & Nuclear Chem., Journal Name: J. Inorg. & Nuclear Chem. Vol. Vol: 23
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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