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ZHANG Wei fang, LIU Li ming, CHANG Zhi yuang (China Institute of Atomic Energy, P.O.Box 275 26, Beijing 102413, China). Improvement of Separation of Pu from U of U-cycle in Purex Process by Acetohydroxamic Acid[J]. Atomic Energy Science and Technology, 2000, 34(2): 110-110. DOI: 10.7538/yzk.2000.34.02.0110
Citation: ZHANG Wei fang, LIU Li ming, CHANG Zhi yuang (China Institute of Atomic Energy, P.O.Box 275 26, Beijing 102413, China). Improvement of Separation of Pu from U of U-cycle in Purex Process by Acetohydroxamic Acid[J]. Atomic Energy Science and Technology, 2000, 34(2): 110-110. DOI: 10.7538/yzk.2000.34.02.0110
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Improvement of Separation of Pu from U of U-cycle in Purex Process by Acetohydroxamic Acid

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    • Abstract
  • New salt free complexants for separating Pu(Ⅳ)from U(Ⅵ) in U cycle of Purex process are investigated. Distribution experiment were carried out for Pu(Ⅳ), Pu(Ⅲ) and U(Ⅵ) in the systems of extraction and backextraction. From these experiments, it is concluded that acetohydroxamic acid (AHA) complexes more readily with Pu(Ⅳ), and it can not only inhibit extraction of Pu(Ⅳ) in aqueous phase, but also preferentially strip Pu(Ⅳ) from 30 % TBP/OK into aqueous phase. By contrast, Pu(Ⅲ) and U(Ⅵ) do not complex strongly with AHA.
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