Method for dissolving plutonium oxide with HI and separating plutonium

Patent · Sun Dec 31 23:00:00 EST 1978

OSTI ID:863262

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

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1. Oak Ridge, TN

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.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4134960
• OSTI ID: 863262
• Country of Publication: United States
• Language: English

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