Document Type
Annual Report
Publication Date
2008
First page number:
84
Last page number:
85
Abstract
The speciation of technetium and actinides in advanced solvent extraction systems is the basis for their manipulation in separations. The ability to understand and predict radionuclide speciation is paramount to successful modeling of proposed separation systems. This project will examine the speciation of radionuclides in different stages of the uranium extraction (UREX) separation scheme, providing data useful to modeling. The areas to be examined include the speciation of uranium and plutonium with tributylphosphate and the kinetics and thermodynamics of lanthanides and actinides in the TALSPEAK (Trivalent actinide lanthanide separation by phosphorous reagent extraction from aqueous complexes) system. The complexation constants of uranium and plutonium with tributylphosphate (TBP) will be evaluated. In the TALSPEAK system, studies will elucidate the difference in complexation kinetics for the lanthanides and actinides. Computational studies based on density functional theory will be performed for both systems.
Keywords
Actinide elements; Plutonium; Rare earth metals; Separation (Technology); Speciation (Chemistry); Technetium; Tributyl phosphate; Uranium
Controlled Subject
Actinide elements; Rare earth metals; Separation (Technology)
Disciplines
Analytical Chemistry | Chemistry | Oil, Gas, and Energy | Physical Chemistry | Radiochemistry
File Format
File Size
148 KB
Language
English
Rights
COPYRIGHT UNDETERMINED. For more information about this rights statement, please visit http://rightsstatements.org/vocab/UND/1.0/
Repository Citation
Czerwinski, K.
(2008).
Evaluation of Fundamental Radionuclide Extraction Data for UREX.
84-85.
Available at:
https://digitalscholarship.unlv.edu/hrc_trp_separations/100
Included in
Analytical Chemistry Commons, Oil, Gas, and Energy Commons, Physical Chemistry Commons, Radiochemistry Commons