U.S. Department of EnergyOffice of Scientific and Technical Information
Light water reactor fuel reprocessing: dissolution studies of voloxidized and nonvoloxidized fuel
Abstract
Small-scale tests with irradiated Zircaloy-clad fuels from Robinson, Oconee, Saxton, and Point Beach reactors with burnups from about 200 to 28,000 MWD/MTHM have been made to determine the dissolution behavior of both voloxidized (U{sub 3}O{sub 8}) and nonvoloxidized (UO{sub 2}) fuel. No significant technical problems were encountered in batch-dissolving of either form. Dissolution rates were well-controlled in all tests. Significant characteristics of U{sub 3}O{sub 8} dissolution that differed from UO{sub 2} dissolution included: (1) reduced tritium and ruthenium ({sup 106}Ru) concentrations in product solutions, (2) increased insoluble noble metal fission product residue (about 2.2X greater), and (3) increased insoluble plutonium in the fission product residue. The insoluble plutonium is easily leached from the residue by 10M HNO{sub 3}. The weight of the fission product residue collected from both U{sub 3}O{sub 8} and UO{sub 2} fuels increased aproximately linearly with fuel burnup. A major fraction (>83%) of the {sup 85}Kr was evolved from U{sub 3}O{sub 8} fuel during dissolution rather than voloxidation. The {sup 85}Kr evolution rate was an appropriate monitor of fuel dissolution rate. Virtually all of the {sup 129}I was evolved by air sparging of the dissolver solution during dissolution. 30 tables, 18 figures.
- Authors:
- Publication Date:
- Research Org.:
- Du Pont de Nemours (E.I.) and Co., Aiken, SC (United States). Savannah River Lab.
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 711324
- Report Number(s):
- DP-1520
- DOE Contract Number:
- AC09-76SR00001
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: PBD: Apr 1980
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 05; VOLOXIDATION PROCESS; DISSOLUTION; SPENT FUELS; REPROCESSING; WATER COOLED REACTORS; FUEL CYCLE; NUCLEAR FUELS; URANIUM DIOXIDE; DEGASSING; KRYPTON 85; NITRIC ACID; BURNUP; IODINE 129
Citation Formats
Johnson, D R, and Stone, J A. Light water reactor fuel reprocessing: dissolution studies of voloxidized and nonvoloxidized fuel. United States: N. p., 1980.
Web. doi:10.2172/711324.
Johnson, D R, & Stone, J A. Light water reactor fuel reprocessing: dissolution studies of voloxidized and nonvoloxidized fuel. United States. https://doi.org/10.2172/711324
Johnson, D R, and Stone, J A. 1980.
"Light water reactor fuel reprocessing: dissolution studies of voloxidized and nonvoloxidized fuel". United States. https://doi.org/10.2172/711324. https://www.osti.gov/servlets/purl/711324.
@article{osti_711324,
title = {Light water reactor fuel reprocessing: dissolution studies of voloxidized and nonvoloxidized fuel},
author = {Johnson, D R and Stone, J A},
abstractNote = {Small-scale tests with irradiated Zircaloy-clad fuels from Robinson, Oconee, Saxton, and Point Beach reactors with burnups from about 200 to 28,000 MWD/MTHM have been made to determine the dissolution behavior of both voloxidized (U{sub 3}O{sub 8}) and nonvoloxidized (UO{sub 2}) fuel. No significant technical problems were encountered in batch-dissolving of either form. Dissolution rates were well-controlled in all tests. Significant characteristics of U{sub 3}O{sub 8} dissolution that differed from UO{sub 2} dissolution included: (1) reduced tritium and ruthenium ({sup 106}Ru) concentrations in product solutions, (2) increased insoluble noble metal fission product residue (about 2.2X greater), and (3) increased insoluble plutonium in the fission product residue. The insoluble plutonium is easily leached from the residue by 10M HNO{sub 3}. The weight of the fission product residue collected from both U{sub 3}O{sub 8} and UO{sub 2} fuels increased aproximately linearly with fuel burnup. A major fraction (>83%) of the {sup 85}Kr was evolved from U{sub 3}O{sub 8} fuel during dissolution rather than voloxidation. The {sup 85}Kr evolution rate was an appropriate monitor of fuel dissolution rate. Virtually all of the {sup 129}I was evolved by air sparging of the dissolver solution during dissolution. 30 tables, 18 figures.},
doi = {10.2172/711324},
url = {https://www.osti.gov/biblio/711324},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 01 00:00:00 EST 1980},
month = {Tue Apr 01 00:00:00 EST 1980}
}