Abstract
WE have recently reported some results on the adsorbability of yttrium and thorium on ‘Dowex 1’ in sulphate solutions1,2. Kraus and Nelson, in their review3, have also briefly described anion-exchange adsorption of thorium from sulphate solutions. We found that thorium in 0.1 M and 0.01 M sulphuric acid solutions is fairly strongly adsorbed on ‘Dowex 1’ and its adsorbability increases with the decrease in the concentration of sulphuric acid. On the other hand, yttrium in such solutions is only slightly adsorbed on ‘Dowex 1’. This fact suggested to us that it might be possible to separate thorium from some rare earth elements by anion exchange. This communication describes the anion exchange behaviour of thorium in sulphuric acid solution and the separation of lanthanum from thorium by anion exchange.
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References
Saito, N., and Sekine, T., Nature, 180, 753 (1957).
Saito, N., and Sekine, T., Bull. Chem. Soc. Japan, 30, 561 (1957).
Kraus, K. A., and Nelson, F., “Annual Review of Nuclear Science”, 7, 31 (1957).
Jenkins, I. L., and Richardson, R. J., U.K. Atomic Energy Res. Estab. C/R 1217 (1953).
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SEKINE, T., SATIO, N. Separation of Lanthanum from Thorium by Anion Exchange. Nature 181, 1464–1465 (1958). https://doi.org/10.1038/1811464a0
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DOI: https://doi.org/10.1038/1811464a0
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