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Solvent Extraction and Ion Exchange Volume 27, 2009 - Issue 1
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Original Articles

Demonstration of a TODGA based Extraction Process for the Partitioning of Minor Actinides from a PUREX Raffinate

Part III: Centrifugal Contactor Run using Genuine Fuel Solution

Daniel Magnusson European Commission, Joint Research Center, Institute for Transuranium Elements, Postfach 2340 D‐76125 Karlsruhe, Germany; Chalmers University of Technology, Nuclear Chemistry, Department of Chemical and Biological Engineering, Gothenburg, Sweden
,
Birgit Christiansen European Commission, Joint Research Center, Institute for Transuranium Elements, Postfach 2340 D‐76125 Karlsruhe, Germany
,
Jean‐Paul Glatz European Commission, Joint Research Center, Institute for Transuranium Elements, Postfach 2340 D‐76125 Karlsruhe, Germany
,
Rikard Malmbeck European Commission, Joint Research Center, Institute for Transuranium Elements, Postfach 2340 D‐76125 Karlsruhe, GermanyCorrespondence[email protected]
,
Giuseppe Modolo Forschungszentrum Jülich, Institute for Energy Research, Safety Research and Reactor Technology, D‐52425 Jülich, Germany
,
Daniel Serrano‐Purroy European Commission, Joint Research Center, Institute for Transuranium Elements, Postfach 2340 D‐76125 Karlsruhe, Germany
&
Christian Sorel Commissariat à l 'Énergie Atomique Valrho (CEA), DRCP/SCPS, BP17171, 30207 Bagnols–sur–Cèze, France
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Pages 26-35 | Published online: 07 Jan 2009
 
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Abstract

Abstract: Efficient recovery of minor actinides (MA) from genuine PUREX raffinate has been successfully demonstrated by the TODGA + TBP extractant mixture dissolved in an industrial aliphatic solvent TPH. The process was carried out in centrifugal contactors using an optimized flow‐sheet involving a total of 32 stages, divided into 4 stages for extraction, 12 stages for scrubbing and 16 stages for back‐extraction. Very high feed decontamination factors were obtained (Am, Cm ∼ 40 000) and the recovery of these elements was higher than 99.99%. Of the non‐lanthanide fission products only Y and a small part of Ru were co‐separated into the product fraction together with the lanthanides and the MA.

ACKNOWLEDGEMENT

Financial support for this research was provided by the European Commission (project EUROPART, contract FI6W‐CT‐2003‐508854).

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