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Evaluation of Me2-CA-BTP/SiO2-P adsorbent for the separation of minor actinides from simulated HLLW
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  • 作者:Shunyan Ning (1)
    Xinpeng Wang (1)
    Ruiqin Liu (1)
    Yuezhou Wei (1)
    Linfeng He (2)
    Fangdong Tang (2)
  • 关键词:Minor actinides ; BTP ; HLLW ; Separation ; Extraction chromatography
  • 刊名:Journal of Radioanalytical and Nuclear Chemistry
  • 出版年:2015
  • 出版时间:March 2015
  • 年:2015
  • 卷:303
  • 期:3
  • 页码:2011-2017
  • 全文大小:731 KB
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  • 作者单位:Shunyan Ning (1)
    Xinpeng Wang (1)
    Ruiqin Liu (1)
    Yuezhou Wei (1)
    Linfeng He (2)
    Fangdong Tang (2)

    1. School of Nuclear Science and Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai, 200240, China
    2. Shanghai Institute of Measurement and Testing Technology, 1500 Zhang Heng Road, Shanghai, 201203, China
  • 刊物类别:Chemistry and Materials Science
  • 刊物主题:Chemistry
    Nuclear Chemistry
    Physical Chemistry
    Nuclear Physics, Heavy Ions and Hadrons
    Diagnostic Radiology
    Inorganic Chemistry
  • 出版者:Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
  • ISSN:1588-2780
文摘
A novel silica-based adsorbent Me2-CA-BTP/SiO2-P was prepared to separate minor actinides from fission products in high level liquid waste. Me2-CA-BTP/SiO2-P adsorption behavior towards 241Am(III) and main FP from HNO3 solutions were studied. The adsorbent exhibited much higher affinity for Am(III) over FP elements in a large HNO3 concentration range and possess good adaptability as HNO3 concentration changes. Dy(III), as a simulated element of MA(III), showed good adsorption properties and elution performance. Dy(III) adsorption kinetics and isotherm followed the pseudo-second-order rate law and Langmuir isotherm adsorption model, respectively. Adsorbed Dy(III) could be effectively eluted from Me2-CA-BTP/SiO2-P by H2O or dilute HNO3.

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