Fissile solubility and monosodium titanate loading tests
The solubilities of plutonium and uranium have been determined for alkaline salt solutions having compositions which bound those which will be processed in the In-Tank Precipitation (ITP) process. Loadings of plutonium and uranium onto monosodium titanate (MST) have been determined at temperatures bounding those expected to occur during ITP and using a salt solution which was determined to have the maximum solubility for uranium and plutonium. Fissile loadings increase with decreasing amounts of MST in contact with the salt solutions saturated in plutonium and uranium. At MST concentrations bounding those which are planned for the ITP process, expressions for the maximum loadings (wt %) are determined to be 0.29 - 0.20x[MST] for plutonium and 1.8 - 0.29x[MST] for uranium, where [MST] is the concentration of MST in grams/liter. These expressions are valid over the range of MST concentrations from 0.05 to 0.51 g/L and temperatures of 17[degrees]--74[degrees]C. These loadings are below the individual infinitely safe limits for plutonium and uranium. Additional confirmatory experiments are planned to verify the effects of temperature and multiple contacts of the MST with fresh salt solution on the fissile loadings.
- Research Organization:
- Savannah River Site (SRS), Aiken, SC (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC09-89SR18035
- OSTI ID:
- 6593851
- Report Number(s):
- WSRC-RP-92-1273; ON: DE93012797
- Country of Publication:
- United States
- Language:
- English
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Plutonium and uranium adsorption on monosodium titanate
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HIGH-LEVEL RADIOACTIVE WASTES
RADIOACTIVE WASTE PROCESSING
PLUTONIUM
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URANIUM
ACTINIDES
ADSORPTION
CRITICALITY
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SAVANNAH RIVER PLANT
SODIUM COMPOUNDS
STRONTIUM
TITANATES
ALKALI METAL COMPOUNDS
ALKALINE EARTH METALS
ELEMENTS
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NATIONAL ORGANIZATIONS
OXYGEN COMPOUNDS
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RADIOACTIVE MATERIALS
RADIOACTIVE WASTE MANAGEMENT
RADIOACTIVE WASTES
SEPARATION PROCESSES
SORPTION
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSURANIUM ELEMENTS
US AEC
US DOE
US ERDA
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WASTE MANAGEMENT
WASTE PROCESSING
WASTES
052001* - Nuclear Fuels- Waste Processing