TY - JOUR
T1 - Gamma radiolytic stability of the novel modified diglycolamide 2,2′-oxybis(N,N-didecylpropanamide) (mTDDGA) for grouped actinide extraction
AU - Verlinden, Bart
AU - Van Hecke, Karen
AU - Wilden, Andreas
AU - Hupert, Michelle
AU - Santiago-Schübel, Beatrix
AU - Egberink, Richard J.M.
AU - Verboom, Willem
AU - Kowalski, Piotr M.
AU - Modolo, Giuseppe
AU - Verwerft, Marc
AU - Binnemans, Koen
AU - Cardinaels, Thomas
N1 - Funding Information:
B. V. acknowledges the SCK CEN Academy for providing funding for a PhD fellowship. This work has been partially supported by the ENEN + project that received funding from the Euratom research and training Work Programme 2016–2017 – 1#755576. Financial support for this research was provided by the H2020 Euratom Research and Innovation Programme under grant agreement no. 755171 (GENIORS project). The authors would like to acknowledge input from the GENIORS community. This research was partially funded by the Excellence Initiative of the German federal and state governments and the Jülich Aachen Research Alliance – High-Performance Computing. We thank the JARA-CDS awarding body for time on the RWTH and Forschungszentrum Jülich GmbH computing resources awarded through JARA-CDS Partition (projects jara0037 & JIEK61).
Funding Information:
B. V. acknowledges the SCK CEN Academy for providing funding for a PhD fellowship. This work has been partially supported by the ENEN + project that received funding from the Euratom research and training Work Programme 2016-2017 - 1#755576. Financial support for this research was provided by the H2020 Euratom Research and Innovation Programme under grant agreement no. 755171 (GENIORS project). The authors would like to acknowledge input from the GENIORS community. This research was partially funded by the Excellence Initiative of the German federal and state governments and the Jülich Aachen Research Alliance - High-Performance Computing. We thank the JARA-CDS awarding body for time on the RWTH and Forschungszentrum Jülich GmbH computing resources awarded through JARA-CDS Partition (projects jara0037 & JIEK61).
Publisher Copyright:
© 2022 The Royal Society of Chemistry
PY - 2022/4/25
Y1 - 2022/4/25
N2 - Reprocessing of spent nuclear fuel aims at improving resource efficiency and reducing its radiotoxicity and heat production in the long term. The necessary separation of certain metal ions from the spent fuel solutions can be achieved using different solvent extraction processes. For the scenario of the EURO-GANEX process, the use of the new, modified diglycolamide 2,2′-oxybis(N,N-didecylpropanamide) (mTDDGA) was recently proposed to simplify the current solvent composition and reduce extraction of fission products. Before further developing the process based on this new ligand, its stability under ionizing radiation conditions needs to be studied. For this reason, gamma irradiation experiments were conducted followed by analyses with high performance liquid chromatography coupled to a mass spectrometer (HPLC-MS). The determined degradation rate of mTDDGA was found to be lower than that of the reference molecule N,N,N′,N′-tetra-n-octyl-diglycolamide (TODGA). Many identified degradation compounds of both molecules are analogues showing the same bond breaking, although also unreported de-methylation, double/triple de-alkylation and n-dodecane addition products were observed.
AB - Reprocessing of spent nuclear fuel aims at improving resource efficiency and reducing its radiotoxicity and heat production in the long term. The necessary separation of certain metal ions from the spent fuel solutions can be achieved using different solvent extraction processes. For the scenario of the EURO-GANEX process, the use of the new, modified diglycolamide 2,2′-oxybis(N,N-didecylpropanamide) (mTDDGA) was recently proposed to simplify the current solvent composition and reduce extraction of fission products. Before further developing the process based on this new ligand, its stability under ionizing radiation conditions needs to be studied. For this reason, gamma irradiation experiments were conducted followed by analyses with high performance liquid chromatography coupled to a mass spectrometer (HPLC-MS). The determined degradation rate of mTDDGA was found to be lower than that of the reference molecule N,N,N′,N′-tetra-n-octyl-diglycolamide (TODGA). Many identified degradation compounds of both molecules are analogues showing the same bond breaking, although also unreported de-methylation, double/triple de-alkylation and n-dodecane addition products were observed.
KW - UT-Gold-D
UR - http://www.scopus.com/inward/record.url?scp=85130091055&partnerID=8YFLogxK
U2 - 10.1039/d1ra08761d
DO - 10.1039/d1ra08761d
M3 - Article
AN - SCOPUS:85130091055
VL - 12
SP - 12416
EP - 12426
JO - RSC advances
JF - RSC advances
SN - 2046-2069
IS - 20
ER -