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000908607 1001_ $$0P:(DE-Juel1)130438$$aWilden, Andreas$$b0$$eCorresponding author$$ufzj
000908607 1112_ $$a3rd International Conference on Ionizing Processes (ICIP 2022)$$cGather Town$$d2022-07-11 - 2022-07-14$$gICIP 2022$$wOnline
000908607 245__ $$aRadiolysis of N-Donor Extractants for the Hydrometallurgical Separation of Trivalent Actinides and Lanthanides
000908607 260__ $$c2022
000908607 3367_ $$033$$2EndNote$$aConference Paper
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000908607 520__ $$aN-donor ligands are currently discussed as promising extractants in the hydrometallurgical separation of trivalent actinides (An(III)) from lanthanides (Ln(III)) in the treatment of used nuclear fuel. Due to their high selectivity for An(III) under process-relevant conditions, the separation from the chemically similar Ln(III) can be achieved with a low number of process steps (e.g., extraction/scrubbing/stripping stages). 6,6’-Bis(5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-benzo[1,2,4]triazin-3-yl)[2,2’]bipyridine (CyMe4BTBP) and 2,9-bis(1,2,4-triazin-3-yl)-1,10-phenantroline (CyMe4BTPhen) are prominent members, therefore their radiolytic stability against gamma radiolysis was studied in 1-octanol solution with and without contact to HNO3 solution. The radiolysis products were identified using high-resolution mass spectrometry. Semi-quantitative analyses and pulsed electron radiolysis were used to study the radiolysis mechanism for both ligands. The changing solvent extraction properties as a function of absorbed dose were studied as well. Alpha-hydroxyoctyl radical addition products were identified as the predominant radiolysis products. The results of this collaborative study will be presented and discussed.[1][1]	Schmidt, H.; Wilden, A.; Modolo, G.; Bosbach, D.; Santiago-Schübel, B.; Hupert, M.; Mincher, B. J.; Mezyk, S. P.; Švehla, J.; Grüner, B.; Ekberg, C., Gamma and pulsed electron radiolysis studies of CyMe4BTBP and CyMe4BTPhen: identification of radiolysis products and effects on the hydrometallurgical separation of trivalent actinides and lanthanides. Radiat. Phys. Chem. 2021, 189, 109696.
000908607 536__ $$0G:(DE-HGF)POF4-1412$$a1412 - Predisposal (POF4-141)$$cPOF4-141$$fPOF IV$$x0
000908607 536__ $$0G:(EU-Grant)323282$$aSACSESS - Safety of ACtinide Separation proceSSes (323282)$$c323282$$fFP7-Fission-2012$$x1
000908607 536__ $$0G:(BMBF)02NUK020E$$aVerbundprojekt f-Kom: Untersuchungen zum grundlegenden Verständnis der selektiven Komplexierung von f-Elementen; Teilprojekt E (02NUK020E)$$c02NUK020E$$x2
000908607 7001_ $$0P:(DE-Juel1)156232$$aSchmidt, Holger$$b1
000908607 7001_ $$0P:(DE-Juel1)130383$$aModolo, Giuseppe$$b2$$ufzj
000908607 7001_ $$0P:(DE-Juel1)133853$$aSantiago-Schübel, Beatrix$$b3$$ufzj
000908607 7001_ $$0P:(DE-Juel1)142389$$aHupert, Michelle$$b4$$ufzj
000908607 7001_ $$0P:(DE-HGF)0$$aMincher, Bruce J.$$b5
000908607 7001_ $$0P:(DE-HGF)0$$aMezyk, Stephen P.$$b6
000908607 7001_ $$0P:(DE-HGF)0$$aŠvehla, Jaroslav$$b7
000908607 7001_ $$0P:(DE-HGF)0$$aGrüner, Bohumir$$b8
000908607 7001_ $$0P:(DE-HGF)0$$aEkberg, Christian$$b9
000908607 8564_ $$uhttps://juser.fz-juelich.de/record/908607/files/Presentation.pdf$$yOpenAccess
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