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  • The chemistry of acetohydroxamic acid related to nuclear fuel reprocessing

    Creator:
    Matteson, Brent Searle
    Abstract:
    Used Nuclear Fuel (UNF) contains transuranic (TRU) elements and numerous fission products as a result of the uranium fission process and neutron activation that occur in commercial light water power reactors. Recent environmental and nuclear proliferation concerns have spawned the development of advanced reprocessing techniques to close the nuclear fuel...
    Resource Type:
    Dissertation
    Full Text:
    advanced reprocessing techniques to close the nuclear fuel cycle. By separating specific elemental groups

  • Influence of temperature on the extraction of Pu(IV) by tri-n-butyl phosphate from acidic nitrate solutions

    Creator:
    Brown, M. Alex
    Abstract:
    The goal of Advanced Fuel Cycle Initiative program is to efficiently separate and recover actinides in attempts to reprocess irradiated nuclear fuel and reduce the necessary storage volume. In order to facilitate large-scale industrial applications of liquid-liquid separation processes, knowledge of the thermodynamic constants associated with the distribution of metal...
    Resource Type:
    Masters Thesis
    Full Text:
    Project Summary ………………………… 2.1 Irradiated Fuel and Reprocessing Chemistry …………. 2.2

  • Investigation of mixed N,O-donor dipicolinamide derivative ligands for use in nuclear fuel separations

    Creator:
    Lapka, Joseph
    Abstract:
    In this work, three isomeric forms of N, N'-diethyl, N, N'-ditolyldipicolinamide (EtTDPA) were synthesized. The elements thorium through americium, which make up a significant portion of the actinides in used nuclear fuel (with the exception of curium), and two fission products, molybdenum and technetium, were tested for their ability to...
    Resource Type:
    Dissertation
    Full Text:
    used fuel reprocessing. Degradation products were determined and the effect of their presence on

  • Aqueous complexation of citric acid and DTPA with selected trivalent and tetravalent f-elements

    Creator:
    Brown, M. Alex
    Abstract:
    Carboxylic acids have played an important role in the field of actinide (An) and lanthanide (Ln) separations and the reprocessing of irradiated nuclear fuel. Recent bench-scale experiments have demonstrated that 3-carboxy-3-hydroxypentanedioic acid (citric acid) is a promising aqueous complexant that can effectively aid in the separation of transition metals from...
    Resource Type:
    Dissertation
    Full Text:
    reprocessing of irradiated nuclear fuel. Recent bench-scale experiments have demonstrated that 3-carboxy-3

  • Organic Phase Inter-Ligand and Metal-Ligand Speciation in TALSPEAK and ALSEP Solvent Extraction Systems

    Creator:
    Gullekson, Brian J.
    Abstract:
    Partitioning of trivalent actinides (in particular, americium and curium) from the fission produced light lanthanides is a major concern of used nuclear fuel reprocessing for the purposes of waste disposal. Several solvent extraction processes have been developed to address these chemically difficult separations. The historically employed TALSPEAK Process utilizes di-2-ethylhexyl...
    Resource Type:
    Dissertation
    Full Text:
    produced light lanthanides is a major concern of used nuclear fuel reprocessing for the purposes of waste

  • SMR full-power scaling analysis and numerical simulation for nuclear hybrid energy system testing

    Creator:
    Hoover, Kyle J.
    Abstract:
    A scaling analysis of the Oregon State University (OSU) - Multi-Application Small Light Water Reactor (MASLWR) system has been developed, and an existing RELAP5-3D model of the facility was improved. The purpose of this study is to support the research of hybrid energy systems, being led by Idaho National Laboratory...
    Resource Type:
    Masters Thesis
    Full Text:
    Water Reactor (MASLWR) system has been developed, and an existing RELAP5-3D model of the facility was

  • Synthesis and testing of a novel soft donor organic extractant molecule for targeted soft metal extraction from aqueous phases

    Creator:
    Gullekson, Brian J.
    Abstract:
    Spent nuclear fuel (SNF) resultant from the generation of nuclear power is a chemically and radiologically diverse system which is advantageous to chemically process prior to geologic disposal. Hydrometallurgy is the primary technology for chemical processing for light water reactor spent fuels, where spent fuel is dissolved in an acid...
    Resource Type:
    Masters Thesis
    Full Text:
    water reactor spent fuels, where spent fuel is dissolved in an acid for liquid based separations. The

  • Feasibility Study of Using HANARO Fuel Rods in WWR-SM Reactor

    Creator:
    Peguero, Lara M.
    Abstract:
    Interest in increased fuel supply stability has driven an investigation into possible alternate fuel for use in the WWR-SM research reactor at the Institute of Nuclear Physics in Uzbekistan. The WWR-SM is a high-power, pool-type research reactor currently utilizing IRT-4M fuel made by a single Russian supplier. A candidate for...
    Resource Type:
    Masters Thesis
    Full Text:
    Using HANARO Fuel Rods in WWR-SM Reactor Abstract approved: Todd S. Palmer Interest in increased fuel

  • Determination of a calculation bias in the MCNP model of the OSTR

    Creator:
    Kitto, Allyson K.
    Abstract:
    Oregon State University is home to a TRIGA® Mark II reactor. In October of 2008, the reactor began operating on low enriched uranium fuel. A model of the facility exists in MCNP, a Monte Carlo code that can be used for criticality calculations. Until now, a bias in the calculation...
    Resource Type:
    Masters Thesis
    Full Text:
    , the reactor began operating on low enriched uranium fuel. A model of the facility exists in MCNP, a

  • Using a membrane reactor for the sulfur-sulfur thermochemical water-splitting cycle

    Creator:
    Knapp, Nathan Michael
    Abstract:
    The hydrogen economy is a possible component of an energy future based on use of alternative and renewable energy sources, deemed desirable from the general consensus of the worldwide community that we do not want to further exacerbate the climate problems that we have introduced over the last two centuries...
    Resource Type:
    Masters Thesis
    Full Text:
    Engineering presented on December 13, 2011. Title: Using a Membrane Reactor for the Sulfur-Sulfur