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

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:
 [1];  [1];  [1]
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  1. Oak Ridge, TN
Issue Date:
Research Org.:
Oak Ridge National Laboratory (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):
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
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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/

Citation Formats

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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