Journal Article

FZJ-2022-02008

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Gamma radiolytic stability of the novel modified diglycolamide 2,2′-oxybis( N , N -didecylpropanamide) (mTDDGA) for grouped actinide extraction

Verlinden, B. ; Van Hecke, K. (Corresponding author) ; Wilden, A.FZJ* ; Hupert, M.FZJ* ; Santiago-Schübel, B.FZJ* ; Egberink, R. J. M. ; Verboom, W. ; Kowalski, P. M.FZJ* ; Modolo, G.FZJ* ; Verwerft, M. ; Binnemans, K. ; Cardinaels, T.

2022
RSC Publishing London

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Please use a persistent id in citations: http://hdl.handle.net/2128/31106  doi:10.1039/D1RA08761D

Abstract: Reprocessing of spent nuclear fuel aims at improving resource efficiency and reducing its radiotoxicity andheat production in the long term. The necessary separation of certain metal ions from the spent fuelsolutions can be achieved using different solvent extraction processes. For the scenario of the EUROGANEXprocess, the use of the new, modified diglycolamide 2,20-oxybis(N,N-didecylpropanamide)(mTDDGA) was recently proposed to simplify the current solvent composition and reduce extraction offission products. Before further developing the process based on this new ligand, its stability underionizing radiation conditions needs to be studied. For this reason, gamma irradiation experiments wereconducted followed by analyses with high performance liquid chromatography coupled to a massspectrometer (HPLC-MS). The determined degradation rate of mTDDGA was found to be lower than thatof the reference molecule N,N,N0 ,N0-tetra-n-octyl-diglycolamide (TODGA). Many identified degradationcompounds of both molecules are analogues showing the same bond breaking, although alsounreported de-methylation, double/triple de-alkylation and n-dodecane addition products were observed.

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Contributing Institute(s):

1. Nukleare Entsorgung (IEK-6)
2. Analytik (ZEA-3)
3. IEK-13 (IEK-13)

Research Program(s):

1. 1412 - Predisposal (POF4-141) (POF4-141)
2. GENIORS - GEN IV Integrated Oxide fuels recycling strategies (755171) (755171)
3. Atomistic modeling of radionuclide-bearing materials for safe management of high level nuclear waste. (jara0037_20191101) (jara0037_20191101)
4. 1221 - Fundamentals and Materials (POF4-122) (POF4-122)

Appears in the scientific report 2022

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Database coverage:
; ; ; ; Article Processing Charges ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Essential Science Indicators ; Fees ; IF < 5 ; JCR ; National-Konsortium ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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