TY - JOUR
T1 - Selective Extraction of Americium from Curium and the Lanthanides by the Lipophilic Ligand CyMe4BTPhen Dissolved in Aliquat-336 Nitrate Ionic Liquid
AU - Zsabka, Peter
AU - Van Hecke, Karen
AU - Cardinaels, Thomas
AU - Wilden, Andreas
AU - Modolo, Giuseppe
AU - Verwerft, Marc
AU - Binnemans, Koen
AU - Cardinaels, Thomas
N1 - Score=10
PY - 2020/1/21
Y1 - 2020/1/21
N2 - The feasibility of separating americium from curium and the lanthanides
was studied in batch solvent extraction experiments using an organic
solvent composed of 0.01 mol L−1 2,9-bis(5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-
1,2,4-benzotriazin-3-yl)-1,10-phenanthroline (CyMe4BTPhen) in the
ionic liquid Aliquat-336 nitrate [A336][NO3] from feed solutions containing
N,N,N’,N’-tetraethyl diglycolamide (TEDGA), stable lanthanide ions and tracers
of 241Am, 244Cm, and 152Eu. The combined use of a lipophilic and
a hydrophilic ligand with opposite selectivity for Am(III) vs. Cm(III) and
Ln(III) allowed the separation of Am(III) from Cm(III) and Ln(III) from moderate
acidic feed solutions (1 mol L−1 HNO3, SFAm/Cm = 3.1–3.9, SFAm/La > 75,
SFAm/Eu ≥ 3000).
AB - The feasibility of separating americium from curium and the lanthanides
was studied in batch solvent extraction experiments using an organic
solvent composed of 0.01 mol L−1 2,9-bis(5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-
1,2,4-benzotriazin-3-yl)-1,10-phenanthroline (CyMe4BTPhen) in the
ionic liquid Aliquat-336 nitrate [A336][NO3] from feed solutions containing
N,N,N’,N’-tetraethyl diglycolamide (TEDGA), stable lanthanide ions and tracers
of 241Am, 244Cm, and 152Eu. The combined use of a lipophilic and
a hydrophilic ligand with opposite selectivity for Am(III) vs. Cm(III) and
Ln(III) allowed the separation of Am(III) from Cm(III) and Ln(III) from moderate
acidic feed solutions (1 mol L−1 HNO3, SFAm/Cm = 3.1–3.9, SFAm/La > 75,
SFAm/Eu ≥ 3000).
KW - Ionic liquids
KW - Americium/curium separation
KW - Solvent extraction
KW - CyMe4BTPhen
KW - TEGDA
KW - Aliquat-336
UR - https://ecm.sckcen.be/OTCS/llisapi.dll/open/38225714
U2 - 10.1080/07366299.2019.1708006
DO - 10.1080/07366299.2019.1708006
M3 - Article
SN - 1532-2262
VL - 38
SP - 1
EP - 18
JO - Solvent extraction and ion exchange
JF - Solvent extraction and ion exchange
IS - 2
ER -