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Nuclear and Hydro Power
Published in Anco S. Blazev, Energy Security for The 21st Century, 2021
Note: Current light water reactors (LWR) make relatively inefficient use of nuclear fuel by fissioning only the very rare and expensive uranium-235 isotope. Nuclear reprocessing can make this waste reusable, and more efficient reactor designs allow better use of the available resources.
The Environment Today
Published in Anco S. Blazev, Power Generation and the Environment, 2021
Lately, however, several nations have started to reprocess the spent fuel in an attempt to reuse it, instead of dumping it in the storage sites. Nuclear reprocessing technology has been sufficiently developed to chemically separate and recover fissionable plutonium from spent nuclear fuel.
The Other Energy Markets
Published in Anco S. Blazev, Global Energy Market Trends, 2021
Note: Current light water reactors (LWR) make relatively inefficient use of nuclear fuel by fissioning only the very rare and expensive uranium-235 isotope. Nuclear reprocessing can make this waste reusable, and more efficient reactor designs allow better use of the available resources.
Functionalized Dipicolinic Acid Derivatives as TALSPEAK-MME Stripping Agents
Published in Solvent Extraction and Ion Exchange, 2021
Nicolas E. F. Uhnak, Kenneth L. Nash
Functionalized dipicolinic acid derivatives present a viable option for use in the TALSPEAK-MME system as minor actinide-selective stripping reagents. In the TALSPEAK-MME system, these ligands demonstrated comparable MA selectivity to traditional PAPC ligands, with the added benefit of solubility. Stripping kinetics was very rapid for the morDPA ligand in this system – a significant improvement over traditional PAPC ligands. Transition metals present some issues; notably Zr and Pd have the potential to contaminate the MA stream, which will require some effort to make TALSPEAK-MME more competitive with alternative combined extractant systems such as ALSEP. Given the rapid kinetics, complexation strength, and potential for tuning the synthesis to fit the process, DPA and its derivatives merit further investigation as the MA selective ligand in MA/Ln separation processes. Further work on the TALSPEAK-MME is required to meet the needs for a post-PUREX nuclear reprocessing scheme.