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DGAを利用する抽出系での希土類パターンとランタノイド, アクチノイド相互分離

Rare earth pattern leading the mutual separation of lanthanides and actinides at the extraction using DGA compound

佐々木 祐二; 伴 康俊; 森田 圭介; 松宮 正彦*; 中瀬 正彦*

Sasaki, Yuji; Ban, Yasutoshi; Morita, Keisuke; Matsumiya, Masahiko*; Nakase, Masahiko*

簡便な3価ランタノイド, アクチノイドの相互分離法開発を目指している。抽出剤とマスキング剤を両相に利用する抽出系は希土類元素パタ-ンを大きく変化させる。3価アクチノイドはそれに従い分配比を増減させ、それが高い分離比に繋がる。ここでは、幾つかの抽出系で得られた結果について述べる。

We focus on the development of simply mutual separation method of trivalent lanthanide (Ln) and actinides (An). The extraction system using extractant and masking agent in both aqueous and organic phases may change the lanthanide pattern greatly, which leads the high separation factor not only Ln and An but also Am and Cm. In this presentation, the results obtained by several extraction system will be discussed.

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