Recovery of LLFP from high-level liquid waste, 3; Properties of solvent for the replacement of n-dodecane

Sasaki, Yuji ; Suzuki, Shinichi; Kobayashi, Toru ; Ito, Keisuke*; Takahashi, Yuya*; Kaneko, Masaaki*; Asano, Kazuhito*

At ImPACT project, we investigate more safety and effect disposal method by using separation of long-lived radioactive nuclides and their transmutation from high-level radioactive waste (HLW). High concentration of Zr in simulated HLW is extracted by HDEHP or TODGA, so we study on properties of diluents instead of n-dodecane. Especially we study on the radiolysis. After irradiation of TODGA dissolved in different 5 diluents, we use these extraction solvents as solvent extraction of Nd. It is found that distribution ratio of Nd decrease with irradiation time.

Language	:	Japanese
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Meeting title	:	日本原子力学会2018年春の年会
Held date	:	2018/03
Location (city)	:	吹田
Location (country)	:	日本
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Keywords	:	高レベル廃液; 溶媒抽出; ImPACT; 長半減期核種; 溶媒物性
Research Facility	:	第4研究棟
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Article of JAEA R&D Review	:
Cooperating Institute	:	文部科学省

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Registration No. : BB20171739
JAEA Abstracts No. :
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