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Title: Processing fissile material mixtures containing zirconium and/or carbon

Patent ·
OSTI ID:1086795

A method of processing spent TRIZO-coated nuclear fuel may include adding fluoride to complex zirconium present in a dissolved TRIZO-coated fuel. Complexing the zirconium with fluoride may reduce or eliminate the potential for zirconium to interfere with the extraction of uranium and/or transuranics from fission materials in the spent nuclear fuel.

Research Organization:
DOENE (USDOE Office of Nuclear Energy, Science and Technology (NE) (United States))
Sponsoring Organization:
USDOE
DOE Contract Number:
FC01-07NE24502
Assignee:
U.S. Department of Energy (Washington, DC)
Patent Number(s):
8,475,747
Application Number:
12/484,561
OSTI ID:
1086795
Country of Publication:
United States
Language:
English

References (7)

TRISO-Coated Fuel Processing to Support High Temperature Gas-Cooled Reactors report October 2002
System and Method for Radioactive Waste Destruction patent-application August 2003
Method of separation and recovery of elements from radioactive liquid wastes patent-application December 2003
Dissolution of Zirconium-Coating Fuel Elements patent December 1961
Retention of fission product caesium in ZrC-coated fuel particles for high-temperature gas-cooled reactors journal June 2000
Dissolution process for ZrO.sub.2 -UO.sub.2 -CaO fuels patent June 1976
Process for Reprocessing a Spent Nuclear Fuel and of Preparing a Mixed Uranium-Plutonium Oxide patent-application December 2007

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