Systematic modifications of BTP-type ligands and effects on the separation of trivalent lanthanides and actinides
In this study the separation of Am(III) from Eu(III) in nitric acid using two BTP-type N-donor ligands, 2,6-bis(6-ethyl-1,2-diazine-3-yl)pyridine (Et-BDP) and 2,6-bis(4-npropyl-2,3,5,6-tetrazine-1-yl)pyridine (nPr-tetrazine) is presented. The extraction and separation properties of both ligands are...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
1 November 2012
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| In: |
Procedia chemistry
Year: 2012, Volume: 7, Pages: 146-151 |
| ISSN: | 1876-6196 |
| DOI: | 10.1016/j.proche.2012.10.025 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1016/j.proche.2012.10.025 Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S187661961200099X 
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| Author Notes: | Björn B. Beele, Udo Müllich, Felicitas Schwörer, Andreas Geist, Petra J. Panak |
| Summary: | In this study the separation of Am(III) from Eu(III) in nitric acid using two BTP-type N-donor ligands, 2,6-bis(6-ethyl-1,2-diazine-3-yl)pyridine (Et-BDP) and 2,6-bis(4-npropyl-2,3,5,6-tetrazine-1-yl)pyridine (nPr-tetrazine) is presented. The extraction and separation properties of both ligands are tested by two phase liquid-liquid extraction at different acid concentrations. In contrast to nPr-BTP the bisdiazinyl ligand Et-BDP is prone to protonation at nitric acid concentrations of 0.2M and higher. A separation factor of SFAm/Eu ≈ 5 is obtained using Et-BDP as extracting ligand and with nPr-tetrazine a SFAm/Eu of 9.1 is realized. Hereby 2-bromodecanoic acid as lipophilic anion source is needed. |
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| Item Description: | Gesehen am 02.11.2018 |
| Physical Description: | Online Resource |
| ISSN: | 1876-6196 |
| DOI: | 10.1016/j.proche.2012.10.025 |