Method for reprocessing and separating spent nuclear fuels
Patent
·
OSTI ID:864669
- Danville, CA
- Livermore, CA
Spent nuclear fuels, including actinide fuels, volatile and non-volatile fission products, are reprocessed and separated in a molten metal solvent housed in a separation vessel made of a carbon-containing material. A first catalyst, which promotes the solubility and permeability of carbon in the metal solvent, is included. By increasing the solubility and permeability of the carbon in the solvent, the rate at which actinide oxides are reduced (carbothermic reduction) is greatly increased. A second catalyst, included to increase the affinity for nitrogen in the metal solvent, is added to increase the rate at which actinide nitrides form after carbothermic reduction is complete.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA
- DOE Contract Number:
- W-7405-ENG-48
- Assignee:
- Krikorian, Oscar H. (Danville, CA);Grens, John Z. (Livermore, CA);Parrish, Sr., William H. (Walnut Creek, CA)
- Patent Number(s):
- US 4399108
- OSTI ID:
- 864669
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
/423/75/976/
actinide
actinide fuel
actinide nitrides
actinide oxide
added
affinity
carbon
carbon-containing
carbon-containing material
carbothermic
carbothermic reduction
catalyst
complete
containing material
fission
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fission products
form
fuels
greatly
greatly increase
greatly increased
housed
included
including
increase
increased
increasing
material
metal
method
molten
molten metal
nitrides
nitrogen
non-volatile
nuclear
nuclear fuel
nuclear fuels
oxides
permeability
products
promotes
rate
reduced
reduction
reprocessed
reprocessing
separated
separating
separation
separation vessel
solubility
solvent
spent
spent nuclear
vessel
volatile
volatile fission
actinide
actinide fuel
actinide nitrides
actinide oxide
added
affinity
carbon
carbon-containing
carbon-containing material
carbothermic
carbothermic reduction
catalyst
complete
containing material
fission
fission product
fission products
form
fuels
greatly
greatly increase
greatly increased
housed
included
including
increase
increased
increasing
material
metal
method
molten
molten metal
nitrides
nitrogen
non-volatile
nuclear
nuclear fuel
nuclear fuels
oxides
permeability
products
promotes
rate
reduced
reduction
reprocessed
reprocessing
separated
separating
separation
separation vessel
solubility
solvent
spent
spent nuclear
vessel
volatile
volatile fission