Demonstration of a TODGA based Extraction Process for the Partitioning of Minor Actinides from a PUREX Raffinate |
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| Authors: | Daniel Magnusson Birgit Christiansen Jean‐Paul Glatz Giuseppe Modolo Daniel Serrano‐Purroy |
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| Affiliation: | 1. European Commission , Joint Research Center , Institute for Transuranium Elements , Postfach 2340 D‐76125 Karlsruhe, Germany;2. Chalmers University of Technology , Nuclear Chemistry , Department of Chemical and Biological Engineering , Gothenburg, Sweden;3. European Commission , Joint Research Center , Institute for Transuranium Elements , Postfach 2340 D‐76125 Karlsruhe, Germany;4. Forschungszentrum Jülich , Institute for Energy Research , Safety Research and Reactor Technology , D‐52425 Jülich, Germany |
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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. |
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| Keywords: | Solvent extraction partitioning TODGA process minor actinides americium |
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