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晶析工程における結晶精製技術に関する研究開発,11; 照射済高速炉燃料溶解液を用いたUNH結晶の精製試験

Research and development on crystal purification in crystallization process, 11; Experimental studies on UNH crystal purification using irradiated fast reactor fuel dissolver solution

中原 将海; 野村 和則  ; 鷲谷 忠博 ; 近沢 孝弘*; 平沢 泉*

Nakahara, Masaumi; Nomura, Kazunori; Washiya, Tadahiro; Chikazawa, Takahiro*; Hirasawa, Izumi*

晶析工程より回収されるUNH結晶の精製技術を開発するために、照射済高速炉燃料溶解液を用いた結晶精製基礎試験を実施した。液体不純物では、発汗操作,固体不純物については融解分離操作によりUNH結晶の精製を試み、結晶精製技術開発に必要な基礎データを取得した。

Concerning the purification technology of UNH crystallization, crystallization purification experiments was carried out with the dissolver solution of irradiated fast reactor core fuel. Sweating operation was attempted for separation of liquid impurities from the UNH crystal, and melt filtration operation was applied to decontamination of solid impurities to U in the crystal. Basic data was obtained for the research and development on crystal purification in the crystallization process.

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