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

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...

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Bibliographic Details
Published in:Solvent extraction and ion exchange 2009-01, Vol.27 (1), p.26-35
Main Authors: Magnusson, Daniel, Christiansen, Birgit, Glatz, Jean-Paul, Malmbeck, Rikard, Modolo, Giuseppe, Serrano-Purroy, Daniel, Sorel, Christian
Format: Article
Language:English
Subjects:
americium
minor actinides
partitioning
Solvent extraction
TODGA process
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Summary: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.
ISSN:0736-6299
1532-2262
DOI:10.1080/07366290802544726