| Effect of Rare Earth Elements on Exchange Performances of Cesium Ion-Sieve |
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| 引用本文： | 张惠源,王榕树,林灿生,张先业. Effect of Rare Earth Elements on Exchange Performances of Cesium Ion-Sieve[J]. 中国稀土学报(英文版), 2003, 21(1): 42-45 |
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| 作者姓名： | 张惠源 王榕树 林灿生 张先业 |
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| 作者单位： | [1]SchoolofChemicalEngineeringandTechnology,TianJinUniversity,Tianjin300072,China [2]ChinaInstituteofAtomicEnergy,Beijing102413,China |
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| 基金项目： | ProjectsupportedbytheNationalAdvancedMaterialsCommitteeofChina ( 2 99710 2 2 ) ,theNationalNaturalScienceFounda tionofChina ( 86 3 715 0 0 4-2 2 0 )andtheDoctoralProgramFoundationoftheMinistryofEducationofChina ( 970 0 5 6 19) |
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| 摘 要： | The exchange performances and the distribution coefficient of Cesium Ion-Sieve (Cs-IS) for cesium and for some rare earth elements were compared. In particular, the effects of neodymium on the cesium ion exchange and the Cs^ selectivity variation on Cs-IS owing to introduction of rare earth elements into HLLW were studied. Though rare earth elements exhibit a small influence on the distribution coefficient for Cs^ ,they impair Cs-exchange capacity of Cs-IS to some extent. This interruption on the selectivity to Cs^ can be significantly eliminated provided an appropriate ratio of liquid to solid V: m is used.
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| 关 键 词： | 化学分离机制 高辐射液体废弃物 铯离子筛 无机离子交换 稀土 |
Effect of Rare Earth Elements on Exchange Performances of Cesium Ion-Sieve |
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| Zhang Huiyuan ,Wang Rongshu ,Lin Cansheng. Effect of Rare Earth Elements on Exchange Performances of Cesium Ion-Sieve[J]. Journal of Rare Earths, 2003, 21(1): 42-45 |
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| Authors: | Zhang Huiyuan Wang Rongshu Lin Cansheng |
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| Affiliation: | Zhang Huiyuan 1*,Wang Rongshu 1,Lin Cansheng |
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| Abstract: | The exchange performances and the distribution coefficient of Cesium Ion-Sieve (Cs-IS) for cesium and for some rare earth elements were compared. In particula r, the effects of neodymium on the cesium ion exchange and the Cs+ selectivity v ariation on Cs-IS owing to introduction of rare earth elements into HLLW were s tudied. Though rare earth elements exhibit a small influence on the distributio n coefficient for Cs+, they impair Cs-exchange capacity of Cs-IS to some ext ent. This interruption on the selectivity to Cs+ can be significantly eliminat ed provided an appropriate ratio of liquid to solid V:m is used. |
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| Keywords: | chemical separating engineering high-level radioactive liquid waste cesium io n-sieve inorganic ion exchange rare earths |
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