Journal Article

PreJuSER-3684

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Demonstration of a SANEX Process in Centrifugal Contactors using the CyMe4-BTBP Molecule on a Genuine Fuel Solution

Magnusson, D. ; Chritiansen, B. ; Foreman, M. R. S. ; Geist, A. ; Glatz, J.-P. ; Malmbeck, R. ; Modolo, G.FZJ* ; Serrano-Purroy, D. ; Sorel, C.

2009
Taylor & Francis Philadelphia, PA

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Please use a persistent id in citations: doi:10.1080/07366290802672204

Abstract: Efficient recovery of minor actinides from a genuine spent fuel solution has been successfully demonstrated by the CyMe4-BTBP/DMDOHEMA extractant mixture dissolved in octanol. The continuous countercurrent process, in which actinides(III) were separated from lanthanides(III), was carried out in laboratory centrifugal contactors using an optimized flow-sheet involving a total of 16 stages. The process was divided into 9 stages for extraction from a 2M nitric acid feed solution, 3 stages for lanthanide scrubbing, and 4 stages for actinide back-extraction. Excellent feed decontamination factors for Am (7000) and Cm (1000) were obtained and the recoveries of these elements were higher than 99.9%. More than 99.9% of the lanthanides were directed to the raffinate except Gd for which 0.32% was recovered in the product.

Keyword(s): J ; Solvent extraction (auto) ; partitioning (auto) ; CyMe4-BTBP process (auto) ; minor actinides (auto) ; SANEX (auto)

Note: Financial support for this research was provided by the European Commission (projects ACSEPT - contract No 211267 and EUROPART - contract No FI6W-CT-2003-508854). The chemical hot cell group and the analytical service at ITU are greatly acknowledged for experimental help. Michael Hudson is acknowledged for attracting the funding for the synthesis of the BTBP molecule.

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Contributing Institute(s):

1. Sicherheitsforschung und Reaktortechnik (IEF-6)

Research Program(s):

1. Nukleare Sicherheitsforschung (P14)
2. ACSEPT - Actinide reCycling by SEParation and Transmutation (211267) (211267)

Appears in the scientific report 2009

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