Assessment of ligand extraction properties: an intercomparison campaign amongst EUROPARTners
Journal article, 2008

An intercomparison campaign was organized at the beginning of the European FP6 EUROPART Integrated Project, among the partners involved in the assessment of the extracting properties of novel ligands, in order to check their accuracy and reliability when determining metal cation distribution ratios. Three different extracting systems, presenting various selectivity and affinity towards trivalent actinides were selected: (i) CMPO, (ii) TPTZ and (iii) BTP. Although some differences could be pointed out in the implementation of liquid-liquid extraction tests, the distribution ratios measured by the nine partners were fairly reproducible (< 20% deviation) for the first two extracting systems. However, large discrepancies occurred when testing the third extracting system, due to its strong hydrolytic instability, thus pointing out the difficulty of assessing extraction properties of instable ligands.

BTP

TPTZ

lanthanides

CMPO

liquid-liquid extraction

actinides

ligand assessment

Author

C. Hill

The French Alternative Energies and Atomic Energy Commission (CEA)

J. F. Desreux

University of Liège

Christian Ekberg

Chalmers, Chemical and Biological Engineering, Nuclear Chemistry

A. G. Espartero

Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas (Ciemat)

M. Galetta

POLIMI

G. Modolo

Forschungszentrum Jülich

A. Geist

Karlsruhe Institute of Technology (KIT)

P. Selucky

Nuclear Research Institute Re plc

J. Narbutt

Institute of Nuclear Chemistry and Technology, Warsaw

C. Madic

The French Alternative Energies and Atomic Energy Commission (CEA)

Radiochimica Acta

0033-8230 (ISSN)

Vol. 96 4-5 259-264

DOI

10.1524/ract.2008.1486

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