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冷却晶析法におけるセシウム及びプルトニウムの同伴挙動

Accompanying behavior of cesium and plutonium in cooling crystallization process

中原 将海; 柴田 淳広  ; 矢野 公彦 ; 三本松 勇二; 竹内 正行 ; 鷲谷 忠博 

Nakahara, Masaumi; Shibata, Atsuhiro; Yano, Kimihiko; Sambommatsu, Yuji; Takeuchi, Masayuki; Washiya, Tadahiro

ウランの粗分離を目的とする冷却晶析法の研究開発をするために、照射済高速炉燃料溶解液を用いたバッチ試験を実施した。硝酸ウラニル六水和物結晶の析出に伴い生成するセシウムとプルトニウムの複塩の挙動について必要な基礎データを取得した。

In order to study a cooling crystallization process for separation of uranyl nitrate hexahydrate crystals, batch experiments were carried out with the dissolver solution derived from irradiated fast neutron reactor core fuel. Basic data were obtained for the precipitation behavior of cesium and plutonium double salt in the course of crystal growth of uranyl nitrate hexahydrate in the uranium crystallization process.

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