Demonstration of a TODGA based Extraction Process for the Partitioning of Minor Actinides from a PUREX Raffinate
Artikel i vetenskaplig tidskrift, 2009

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.

minor actinides

recovery

partitioning

TODGA process

Solvent extraction

americium

lanthanides

diamex process

waste

Författare

Daniel Magnusson

Chalmers, Kemi- och bioteknik, Kärnkemi

B. Christiansen

European Commission Joint Research Centre, Institute for Transuranium Elements Karlsruhe

J. P. Glatz

European Commission Joint Research Centre, Institute for Transuranium Elements Karlsruhe

R. Malmbeck

European Commission Joint Research Centre, Institute for Transuranium Elements Karlsruhe

G. Modolo

Forschungszentrum Jülich

D. Serrano-Purroy

European Commission Joint Research Centre, Institute for Transuranium Elements Karlsruhe

C. Sorel

Le Commissariat à l’énergie atomique et aux énergies alternatives (CEA)

Solvent Extraction and Ion Exchange

0736-6299 (ISSN) 1532-2262 (eISSN)

Vol. 27 26-35

DOI

10.1080/07366290802544726