Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2018 Impact factor 0.961

Nuclear Science and Techniques ›› 1995, Vol. 6 ›› Issue (3): 140

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EXTRACTION OF AMERICIUM AND LIGHT RARE EARTHS BY 2-ETHYL HEXYL PHOSPHONIC ACID 2-ETHYL HEXYL ESTER

Zhu Yongjun (朱永俊) and Jiao Rongzhou (焦荣洲)   

  1. Institute of Nuclear Energy Technology, Tsinghua University, Beijing 100084
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Zhu Yongjun (朱永俊) and Jiao Rongzhou (焦荣洲). EXTRACTION OF AMERICIUM AND LIGHT RARE EARTHS BY 2-ETHYL HEXYL PHOSPHONIC ACID 2-ETHYL HEXYL ESTER.Nuclear Science and Techniques, 1995, 6(3): 140

Abstract: The extraction behavior of trace Am(II) and Eu(Il) from nitrate medium with HEHEHP in kerosene was studied. LgD/pH and lgD/[H2A2] dependence plots are given. Calculated values of lg, for Eu, Nd and Am are -0.13± 0.08, -1.36 40.10, -1.89 ± 0.18, respectively. Extraction equilibrium equations were deduced under proper conditions. Calculated values of DAm and DRE are in accordance with experimental ones.

Key words: Americium/rare earths separation, HEHEHP extraction, Numerical solution