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@ARTICLE{Marie:863898,
author = {Marie, Cécile and Kaufholz, Peter and Vanel, Vincent and
Duchesne, Marie-Thérèse and Russello, Emilie and Faroldi,
Federica and Baldini, Laura and Casnati, Alessandro and
Wilden, Andreas and Modolo, Giuseppe and Miguirditchian,
Manuel},
title = {{D}evelopment of a {S}elective {A}mericium {S}eparation
{P}rocess using {H}4{TPAEN} as {W}ater-{S}oluble {S}tripping
{A}gent},
journal = {Solvent extraction and ion exchange},
volume = {37},
number = {5},
issn = {0736-6299},
address = {Philadelphia, PA},
publisher = {Taylor $\&$ Francis},
reportid = {FZJ-2019-03869},
pages = {313-327},
year = {2019},
abstract = {Recycling americium from spent nuclear fuel is considered
as an important option for a future sustainable nuclear fuel
cycle. The PUREX solvent extraction process allows to
separate uranium and plutonium from a solution of spent fuel
dissolved in nitric acid. In a second step, it would be
desirable to separate americium from fission products, and
especially lanthanides, but also from curium in order to
further transmute americium in future fast neutron reactors.
For this purpose, we report the investigation of a new
solvent extraction process based on the use of TODGA as an
extractant in the organic phase and H4TPAEN as a selective
Am(III) stripping agent in the aqueous phase. With this
promising system it is possible to co-extract Am, Cm and
lanthanides at high acidity and then selectively strip
americium from the loaded organic phase at pH around 1 with
H4TPAEN. Batch extraction data were acquired to evaluate
best conditions to develop a liquid-liquid extraction flow
sheet. The influence of several parameters like
concentration of ligand, cations and temperature on
Am(III)/Cm(III) and Am/lanthanides separation was evaluated.
Especially, the ability of H4TPAEN complexing agent to strip
macro-concentrations of Am was demonstrated.},
cin = {IEK-6},
ddc = {540},
cid = {I:(DE-Juel1)IEK-6-20101013},
pnm = {161 - Nuclear Waste Management (POF3-161) / SACSESS -
Safety of ACtinide Separation proceSSes (323282)},
pid = {G:(DE-HGF)POF3-161 / G:(EU-Grant)323282},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000479711100001},
doi = {10.1080/07366299.2019.1643569},
url = {https://juser.fz-juelich.de/record/863898},
}