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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Geist, Andreas
Karlsruhe Institute of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2023Solvent Optimization Studies for a New EURO-GANEX Process with 2,2'-Oxybis(<i>N,N</i>-di-<i>n</i>-decylpropanamide) (mTDDGA) and Its Radiolysis Productscitations
- 2019Homogenous recycling of transuranium elements from irradiated fast reactor fuel by the EURO-GANEX solvent extraction processcitations
- 2015The structures of CyMe4-BTBP complexes of americium(III) and europium(III) in solvents used in solvent extraction, explaining their separation propertiescitations
- 2013Hydrometallurgical actinide separation processes for advanced nuclear fuel cycles
- 2013Hydrometallurgical TRU separations
- 2007Separation of minor actinides in the partitioning and transmutation context
Places of action
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document
Separation of minor actinides in the partitioning and transmutation context
Abstract
Separation of Minor Actinides in the Partitioning & Transmutation Context 1 2 European Commission, Joint Research Centre, Institute for Transuranium Elements Plutonium and the minor actinides (neptunium, americium, curium) control the long-term radiotoxicity of spent nuclear fuels. If these elements are submitted to nuclear transmutation in ADS or fast reactors the long-term radiotoxicity (and the heat load to a geological repository) could be substantially alleviated. Before transmutation, the actinides must be separated from the fission products, especially those having large neutron capture cross sections. Both hydrometallurgical and pyrometallurgical separations may be used for this task (i.e., “Partitioning”). Hydrometallurgy makes use of selective complexing agents which extract the metal ions to be separated into an organic phase immiscible with the aqueous feed phase. The advantages are mainly the large experience already gathered from industrial applications and that there is high degree of chemical flexibility. However, new advanced fuels types or transmutation targets under development might have a low solubility in aqueous solutions. In addition, very high burn-ups and short cooling times may cause radiolysis of organic solvents. In this case, pyrometallurgy is better suitable as it utilises highly stable liquid metals and molten salts in combination with electrochemistry to achieve separation. Capabilities and drawbacks of both separations techniques are discussed with respect to their applicability in the P&T context. Additionally, the interface between Partitioning and Transmutation will be addressed, i.e., aspects of fuel or target dissolution and refabrication.