Dissolution process for ZrO.sub.2 -UO.sub.2 -CaO fuels

Paige, Bernice E.

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Title: Dissolution process for ZrO.sub.2 -UO.sub.2 -CaO fuels

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Abstract

The present invention provides an improved dissolution process for ZrO₂ -UO₂ -CaO-type pressurized water reactor fuels. The zirconium cladding is dissolved with hydrofluoric acid, immersing the ZrO₂ -UO₂ -CaO fuel wafers in the resulting zirconium-dissolver-product in the dissolver vessel, and nitric acid is added to the dissolver vessel to facilitate dissolution of the uranium from the ZrO₂ -UO₂ -CaO fuel wafers.

Inventors:: Paige, Bernice E.

Issue Date:: Thu Jan 01 00:00:00 EST 1976

Research Org.:: Idaho National Laboratory (INL), Idaho Falls, ID (United States)

Sponsoring Org.:: US Energy Research and Development Administration (ERDA)

OSTI Identifier:: 862582

Patent Number(s):: 3965237

Application Number:: 05/567216

Assignee:: United States of America as repesented by United States Energy (Washington, DC)

Patent Classifications (CPCs):: C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS

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C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
C01G43/00 - Compounds of uranium
C01G43/025 - Uranium dioxide

G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
G21C19/46 - Aqueous processes {, e.g. by using organic extraction means, including the regeneration of these means}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E30/30 - Nuclear fission reactors

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02W - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
Y02W30/50 - Reuse, recycling or recovery technologies

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DOE Contract Number:: AT(10-1)-1375

Resource Type:: Patent

Resource Relation:: Patent File Date: 1975 Apr 11

Country of Publication:: United States

Language:: English

Subject:: dissolution; fuels; pressurized water reactor fuels; zirconium cladding; hydrofluoric acid; wafers; zirconium-dissolver-product; nitric acid; uranium; reactor fuel; dissolver vessel; solution process; /423/976/

Citation Formats


                    Paige, Bernice E. Dissolution process for ZrO.sub.2 -UO.sub.2 -CaO fuels.  United States: N. p., 1976. 
        Web.

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                    Paige, Bernice E. Dissolution process for ZrO.sub.2 -UO.sub.2 -CaO fuels.  United States.

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                    Paige, Bernice E. Thu .  
        "Dissolution process for ZrO.sub.2 -UO.sub.2 -CaO fuels".  United States.  https://www.osti.gov/servlets/purl/862582.

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@article{osti_862582,

  title        = {Dissolution process for ZrO.sub.2 -UO.sub.2 -CaO fuels},

  author       = {Paige, Bernice E.},

  abstractNote = {The present invention provides an improved dissolution process for ZrO2 -UO2 -CaO-type pressurized water reactor fuels. The zirconium cladding is dissolved with hydrofluoric acid, immersing the ZrO2 -UO2 -CaO fuel wafers in the resulting zirconium-dissolver-product in the dissolver vessel, and nitric acid is added to the dissolver vessel to facilitate dissolution of the uranium from the ZrO2 -UO2 -CaO fuel wafers.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Thu Jan 01 00:00:00 EST 1976},

  month        = {Thu Jan 01 00:00:00 EST 1976}

}

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