Study of plutonium volatility under microwave melting conditions used for glass encapsulation of plutonium sludge wastes: Final report
Transpiration measurements have been made to evaluate the extent of Pu volatilities expected during microwave melting of Pu sludge/glass mixtures. Measurements have been made at 2% PuO[sub 2] and 0.03% PuO[sub 2] in Pu sludge/glass mixtures, where Pu is found to volatilize as PuO[sub 2](OH)[sub 2](g) at pressures of the order of 10[sup [minus]10] to 10[sup [minus]11] atm at melt temperatures of [approximately]1400 K. The data are extrapolated to the actual expected conditions of Pu contents of 0.0003% in the Pu sludge/glass mix, at a melt temperature of 1500 K, O[sub 2] pressure of 0.2 atm, and H[sub 2]O pressure 0.1 atm. The pressure of PuO[sub 2](OH)[sub 2](g) is estimated to be 8 [times] 10[sup [minus]14] atm under these conditions. An estimate is also given of AmO[sub 2](OH)[sub 2](g) volatility of 4 [times] 10[sup [minus]17] atm when [sup 241]Am is present at a level of 500 ppM in the Pu.
- Research Organization:
- Lawrence Livermore National Lab., CA (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6547424
- Report Number(s):
- UCRL-ID-113718; ON: DE93014367
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
HIGH-LEVEL RADIOACTIVE WASTES
ENCAPSULATION
PLUTONIUM
VOLATILITY
SLUDGES
MICROWAVE HEATING
CERAMIC MELTERS
GLASS
MELTING
PROGRESS REPORT
RADIOACTIVE WASTE PROCESSING
SOLIDIFICATION
ACTINIDES
DOCUMENT TYPES
ELECTRIC FURNACES
ELEMENTS
FURNACES
HEATING
MANAGEMENT
MATERIALS
METALS
PHASE TRANSFORMATIONS
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE MANAGEMENT
RADIOACTIVE WASTES
TRANSURANIUM ELEMENTS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
052001* - Nuclear Fuels- Waste Processing