Development of the CEPOD process for dissolving plutonium oxide and leaching plutonium from scrap or wastes. [Catalyzed Electrochemical Plutonium Oxide Dissolution (CEPOD)]

Technical Report · Fri Nov 01 04:00:00 EST 1985

DOI:https://doi.org/10.2172/6357155· OSTI ID:6357155

Bray, L. A.; Ryan, J. L.; Wheelwright, E. J.

Laboratory-scale dissolving tests have demonstrated that PuO/sub 2/, fired at temperatures between 950 and 1700/sup 0/C, can be dissolved at 25 to 35/sup 0/C to concentrations exceeding 100 g Pu/L in an electrochemical dissolver using silver ion as a redox catalyst. The dissolution rates are 2 to 5 times faster than the rates obtained using the current process (12 M HNO/sub 3/-0.18 M HF at 90/sup 0/C) and the corrosive fluoride ion is avoided. 4 refs., 5 figs., 1 tab.

• Research Organization: Pacific Northwest Labs., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6357155
• Report Number(s): PNL-5657; ON: DE86003542
• Country of Publication: United States
• Language: English

Related Subjects

052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ACTINIDE COMPOUNDS
ACTINIDES
CHALCOGENIDES
CHEMISTRY
DATA
DISSOLUTION
DISSOLVERS
ELECTROCHEMISTRY
ELEMENTS
EXPERIMENTAL DATA
INFORMATION
LEACHING
METALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PLUTONIUM
PLUTONIUM COMPOUNDS
PLUTONIUM DIOXIDE
PLUTONIUM OXIDES
SCRAP
SCRAP METALS
SEPARATION PROCESSES
SOLID WASTES
TRANSURANIUM COMPOUNDS
TRANSURANIUM ELEMENTS
WASTES