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Filtering by: Creator Precek, Martin Remove constraint Creator: Precek, Martin Degree Level Doctoral Remove constraint Degree Level: Doctoral Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

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  • The kinetic and radiolytic aspects of control of the redox speciation of neptunium in solutions of nitric acid

    Creator:
    Precek, Martin
    Abstract:
    Neptunium, with its rich redox chemistry, has a special position in the chemistry of actinides. With a decades-long history of development of aqueous separation methods for used nuclear fuel (UNF), management of neptunium remains an unresolved issue because of its not clearly defined redox speciation. Neptunium is present in two,...
    Resource Type:
    Dissertation
    Full Text:
    Martin Precek for the degree of Doctor of Philosophy in Chemistry presented on August 29, 2012

  • 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:
    interpretation of the complexation data. Martin Precek provided a numerical modeling program for neptunium

  • 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:
    includes Dr. M. Alex Brown, Dr. Joseph Lapka, Vanessa Holfeltz, Dr. Martin Přeček, Dr. Elizabeth O. Krahn