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Tc(IV) complexation with organic ligands
(2012)
99Technetium poses a difficult problem at multiple Department of Energy sites, where there are currently vast quantities in storage. 99Tc has a half-life of 2.3 x 105 years, thus it will have to be accounted for a very ...
UTILIZATION OF TRADITIONAL AND NOVEL NMR SPECTROSCOPIC TECHNIQUES TO PROBE INTERACTIONS IN THE ORGANIC PHASE OF LIQUID-LIQUID SOLVENT EXTRACTION SYSTEMS
(2017)
Solvent extraction is a technique commonly used is the reprocessing of used nuclear fuel elements. It utilizes the partitioning of a metal ion between two immiscible phases, typically an acidic aqueous phase and a light ...
Activation Product Analysis in the Presence of Fission Products
(2015)
Methods to quantify activation products in complex samples are needed in areas such as nuclear safeguards, waste treatment and identification, environmental monitoring, and consequence management. Formation of activation ...
Optimization of the Electrochemical Pre-Concentration of f-Elements
(2014)
Rapid pre-concentration of trace lanthanide cations in aqueous solution has been achieved using mercury film electrodes. Although effective, this technique has shown minimal sample carryover when used to pre-concentrate ...
Investigation on the Diluent Effect on Solvent Extraction Processes of Trivalent f-Elements by Acidic Di-Alkyl Organophosphorus Extractants
(2018)
Solvent extraction is the most common chemical technique used in hydrometallurgical separations and purification of transition metals and f-elements. Solvent extraction of metallic cations, such as the f-elements, needs ...
Complexation of Tetravalent Fission Products and Plutonium(IV) with Polyaminopolycarboxylate Ligands
(2018)
Management of problematic tetravalent fission products and actinides present in the back end of the nuclear fuel cycle presents important scientific and technical challenges concerning the reprocessing and disposal of used ...
High Yield Fission Product Separations and Quantification For Nuclear Forensic Applications
(2017)
Strontium-90 and its daughter, yttrium-90, have cumulative fission yields of approximately 6 percent from the thermal neutron induced fission of uranium-235. With these high yields, Sr and Y are prevalent following an ...
Influence of Near-Field Materials on the Durability of Nuclear Waste Glass
(2017)
A reliable and effective method of nuclear waste disposal is necessary for the continuing use of nuclear energy. Borosilicate glasses are the currently accepted method of the disposal of these wastes, though a thorough ...