Method for dissolving plutonium oxide with HI and separating plutonium

Vondra, Benedict L; Tallent, Othar K; Mailen, James C

Title: Method for dissolving plutonium oxide with HI and separating plutonium

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Abstract

PuO.sub.2 -containing solids, particularly residues from incomplete HNO.sub.3 dissolution of irradiated nuclear fuels, are dissolved in aqueous HI. The resulting solution is evaporated to dryness and the solids are dissolved in HNO.sub.3 for further chemical reprocessing. Alternatively, the HI solution containing dissolved Pu values, can be contacted with a cation exchange resin causing the Pu values to load the resin. The Pu values are selectively eluted from the resin with more concentrated HI.

Inventors:

Vondra, Benedict L ^[1]; Tallent, Othar K ^[1]; Mailen, James C ^[1]

Oak Ridge, TN

Issue Date:: 1979-01-01

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 863262

Patent Number(s):: 4134960

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

Patent Classifications (CPCs):: 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

C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS

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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

C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
C22B60/0239 - {nitric acid containing ion as active agent}

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
C01G56/001 - {Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange}

C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
C22B3/42 - by ion-exchange extraction

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
C01G56/004 - {Compounds of plutonium

C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
C22B60/04 - Obtaining plutonium
C22B60/023 - {halogenated ion as active agent}
C22B60/0265 - {extraction by solid resins}

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 Y02W - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
Y02W30/50 - Reuse, recycling or recovery technologies

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

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Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; dissolving; plutonium; oxide; separating; puo; -containing; solids; particularly; residues; incomplete; hno; dissolution; irradiated; nuclear; fuels; dissolved; aqueous; resulting; solution; evaporated; dryness; chemical; reprocessing; alternatively; containing; values; contacted; cation; exchange; resin; causing; load; selectively; eluted; concentrated; plutonium oxide; resulting solution; containing dissolved; dissolving plutonium; containing solids; nuclear fuels; containing solid; irradiated nuclear; cation exchange; solution containing; exchange resin; nuclear fuel; separating plutonium; chemical reprocessing; /423/976/

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                    Vondra, Benedict L, Tallent, Othar K, and Mailen, James C. Method for dissolving plutonium oxide with HI and separating plutonium.  United States: N. p., 1979. 
        Web.

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                    Vondra, Benedict L, Tallent, Othar K, & Mailen, James C. Method for dissolving plutonium oxide with HI and separating plutonium.  United States.

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                    Vondra, Benedict L, Tallent, Othar K, and Mailen, James C. Mon .  
        "Method for dissolving plutonium oxide with HI and separating plutonium".  United States.  https://www.osti.gov/servlets/purl/863262.

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@article{osti_863262,

  title        = {Method for dissolving plutonium oxide with HI and separating plutonium},

  author       = {Vondra, Benedict L and Tallent, Othar K and Mailen, James C},

  abstractNote = {PuO.sub.2 -containing solids, particularly residues from incomplete HNO.sub.3 dissolution of irradiated nuclear fuels, are dissolved in aqueous HI. The resulting solution is evaporated to dryness and the solids are dissolved in HNO.sub.3 for further chemical reprocessing. Alternatively, the HI solution containing dissolved Pu values, can be contacted with a cation exchange resin causing the Pu values to load the resin. The Pu values are selectively eluted from the resin with more concentrated HI.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1979},

  month        = {1}

}

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