Simultaneous recovery of all actinides from spent nuclear fuel by carbamoylmethylphosphine oxide in fluorinated diluents

Ozawa, Masaki; Iwai, Takehiko*; Babain, V.*; Shadrin, A.*

Bifunctional organophosphorus extractants dissolved in polar fluorinated diluents were studied aiming at directly recovering all f-elements from the dissolver solution of spent nuclear fuel. Distribution ratios of U, Np and Pu were sufficiently high for 0.40.8MCMPO in this solvent system, and combination of salt-free, methylamine carbonate (MAC), etc, were evaluated to obtain fractional stripping of f-elements. Static multi-stage extraction using artificial FBR dissolver solution supported the process feasibility.

Language	:	English
Journal	:	Proceedings of International Solvent Extraction Conference "Solvent Extraction-Fundamentals to Industrial Applications" (ISEC 2008)
Volume	:
Number	:
Pages	:	p.623 - 628
Publication Year/Month	:	2008/09
Meeting title	:	International Solvent Extraction Conference "Solvent Extraction-Fundamentals to Industrial Applications" (ISEC 2008)
Held date	:	2008/09
Location (city)	:	Tucson
Location (country)	:	U.S.A.
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DOI for research data	:
Keywords	:	no keyword
Research Facility	:
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Article of JAEA R&D Review	:
Cooperating Institute	:	Khlopin Radium Institute

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Registration No. : BB20073346
JAEA Abstracts No. :
Paper Submission No. : 7017

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