Demonstration of a SANEX process in centrifugal contactors using the CyMe4-BTBP molecule on a genuine fuel solution
Artikel i vetenskaplig tidskrift, 2009
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 2 M 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.
CyMe4-BTBP process
Solvent extraction
SANEX
Partitioning
Minor actinides
Författare
Daniel Magnusson
Chalmers, Kemi- och bioteknik, Kärnkemi
B. Christiansen
European Commission Joint Research Centre, Institute for Transuranium Elements Karlsruhe
Mark Foreman
Chalmers University of Technology
University of Reading
A. Geist
Karlsruhe Institute of Technology, Campus North
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 (FZJ)
D. Serrano-Purroy
European Commission Joint Research Centre, Institute for Transuranium Elements Karlsruhe
C. Sorel
CEA Valrho
Solvent Extraction and Ion Exchange
0736-6299 (ISSN) 1532-2262 (eISSN)
Vol. 27 2 97-106DOI
10.1080/07366290802672204