Demonstration of a SANEX process in centrifugal contactors using the CyMe4-BTBP molecule on a genuine fuel solution
Journal article, 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.

Partitioning

SANEX

Minor actinides

Solvent extraction

CyMe4-BTBP process

Author

Daniel Magnusson

Chalmers, Chemical and Biological Engineering, Nuclear Chemistry

B. Christiansen

European Commission Joint Research Centre, Institute for Transuranium Elements Karlsruhe

Mark Foreman

University of Reading

Nuclear Chemistry

A. Geist

Karlsruhe Institute of Technology (KIT)

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

The French Alternative Energies and Atomic Energy Commission (CEA)

Solvent Extraction and Ion Exchange

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

Vol. 27 2 97-106

DOI

10.1080/07366290802672204

More information

Latest update

7/31/2019