Method for dissolving plutonium dioxide

Tallent, Othar K

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Title: Method for dissolving plutonium dioxide

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Abstract

A method for dissolving plutonium dioxide comprises adding silver ions to a nitric acid-hydrofluoric acid solution to significantly speed up dissolution of difficultly soluble plutonium dioxide.

Inventors:

Tallent, Othar K ^[1]

Oak Ridge, TN

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

Research Org.:: UNION CARBIDE CORP

OSTI Identifier:: 862625

Patent Number(s):: 3976775

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

Patent Classifications (CPCs):: C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS

G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS

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C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
C22B3/045 - {Leaching using electrochemical processes}
C22B60/04 - Obtaining plutonium

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 Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P10/20 - Process efficiency

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:: W-7405-ENG-26

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; dissolving; plutonium; dioxide; comprises; adding; silver; nitric; acid-hydrofluoric; acid; solution; significantly; speed; dissolution; difficultly; soluble; plutonium dioxide; hydrofluoric acid; dissolving plutonium; acid solution; nitric acid; comprises adding; soluble plutonium; /423/976/

Citation Formats


                    Tallent, Othar K. Method for dissolving plutonium dioxide.  United States: N. p., 1976. 
        Web.

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                    Tallent, Othar K. Method for dissolving plutonium dioxide.  United States.

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                    Tallent, Othar K. Thu .  
        "Method for dissolving plutonium dioxide".  United States.  https://www.osti.gov/servlets/purl/862625.

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@article{osti_862625,

  title        = {Method for dissolving plutonium dioxide},

  author       = {Tallent, Othar K},

  abstractNote = {A method for dissolving plutonium dioxide comprises adding silver ions to a nitric acid-hydrofluoric acid solution to significantly speed up dissolution of difficultly soluble plutonium dioxide.},

  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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The fluoride-catalyzed, non-oxidative dissolution of plutonium dioxide in HNO.sub.3 is significantly enhanced in rate by oxidizing dissolved plutonium ions. It is believed that the oxidation of dissolved plutonium releases fluoride ions from a soluble plutonium-fluoride complex for further catalytic action.
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