Dissolution of PuO.sub.2 or NpO.sub.2 using electrolytically reg

Details Dissolution of PuO.sub.2 or NpO.sub.2 using electrolytically reg Dissolution of PuO.sub.2 or NpO.sub.2 using electrolytically reg

1984-09-26

1987-08-11

Terapane, John F.

Chemistry: electrical and wave energy

Processes and products

204252, 252626, 252627, 423 2, 423 3, 423 20, 423 22, 423249, 423251, C25C 122, C25C 334, G12C 1944, G12C 1946

Patent

active

046860193

ABSTRACT:
A process for dissolving PuO.sub.2, NpO.sub.2, or fuel containing PuO.sub.2 and/or NpO.sub.2 in acid, particularly nitric acid by electrolytically continuously maintaining an oxidizing regenerable reagent. The regenerable reagent may be added to the mixture of oxide(s) and nitric acid. Alternately, it may already be present as a fission product or other nuclear reaction product in irradiated nuclear reactor fuel, in which case it need not be added to the nitric acid.

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Scargill, D. 1974, Process for the Purification of Concentrated Plutonium Solutions, Report OKAEA, Harwell, Oxon, England, 35 pages.
Scheitlin et al., 1980, Recovery of Plutonium from HEPA Filters by Ce(IV)-Promoted Dissolution of PuO.sub.2 and Recycle of the Cerium Promoter, Oak Ridge National Laboratory, ORNL/TM-6802.

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