Method for dissolving plutonium oxide with HI and separating plutonium

Patent · Mon Jan 01 00:00:00 EST 1979

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 (United States)
• 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

Related Subjects

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/