Characteristics of dicesium plutonium(IV) nitrate formation in separation system of uranyl nitrate hexahydrate crystal

Nakahara, Masaumi; Yano, Kimihiko ; Shibata, Atsuhiro ; Takeuchi, Masayuki ; Okano, Masanori ; Kuno, Takehiko

For decontamination of Cs and Pu compound, Cs $_{2}$ Pu(NO $_{3}$ ) $_{6}$ , precipitated in the U cooling crystallization method, solubility measurement of Cs $_{2}$ Pu(NO $_{3}$ ) $_{6}$ in a uranyl nitrate solution and a U crystallization experiments were carried out with the dissolver solution derived from irradiated fast neutron reactor core fuel. The solubility of Cs $_{2}$ Pu(NO $_{3}$ ) $_{6}$ in the uranyl nitrate solution decreased with decreasing temperature. In the crystallization experiments, the decontamination factors of Cs and Pu for uranyl nitrate hexahydrate crystal decrease with increasing the Cs concentration in the feed solution because Cs $_{2}$ Pu(NO $_{3}$ ) $_{6}$ formed in the course of U crystallization. Basic data were obtained for the formation behavior of Cs $_{2}$ Pu(NO $_{3}$ ) $_{6}$ in the U crystallization process.

Language	:	English
Journal	:	Procedia Chemistry
Volume	:	7
Number	:
Pages	:	p.282 - 287
Publication Year/Month	:	2012/00
Meeting title	:	4th International ATALANTE Conference on Nuclear Chemistry for Sustainable Fuel Cycles (ATALANTE 2012)
Held date	:	2012/09
Location (city)	:	Montpellier
Location (country)	:	France
Patent information	:
PDF	:
Paper URL	:	https://doi.org/10.1016/j.proche.2012.10.045
DOI for research data	:
Keywords	:	no keyword
Research Facility	:	CPF(高レベル放射性物質研究施設)
Press Release	:
Article of JAEA R&D Review	:
Cooperating Institute	:

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Registration No. : BB20113424
JAEA Abstracts No. : 41000047
Paper Submission No. : 11608

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