Process for manufacturing uranium dioxide powder
Patent
·
OSTI ID:5391238
A process is described for manufacturing uranium dioxide powder which comprises forming fine uranium dioxide powder having a high sinterability and coarse uranium dioxide powder having a low sinterability continuously in one process by changing periodically the precipitation condition of the ammonium diuranate under the same condition of calcining and reducing of the ammonium diuranate. The thus obtained mixture of these uranium dioxide powders is suitable for uranium dioxide pellets which are a fuel of nuclear power reactor.
- Assignee:
- Mitsubishi Nuclear Fuel Co., Ltd. (Japan)
- Patent Number(s):
- US 4505882
- OSTI ID:
- 5391238
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
050700* -- Nuclear Fuels-- Fuels Production & Properties
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
ACTINIDE COMPOUNDS
AMMONIUM COMPOUNDS
AMMONIUM URANATES
CALCINATION
CHALCOGENIDES
CHEMICAL REACTIONS
DECOMPOSITION
FABRICATION
FUEL PELLETS
OXIDES
OXYGEN COMPOUNDS
PELLETS
POWDERS
PRECIPITATION
PRODUCTION
PYROLYSIS
SEPARATION PROCESSES
SINTERING
THERMOCHEMICAL PROCESSES
URANATES
URANIUM COMPOUNDS
URANIUM DIOXIDE
URANIUM OXIDES
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
ACTINIDE COMPOUNDS
AMMONIUM COMPOUNDS
AMMONIUM URANATES
CALCINATION
CHALCOGENIDES
CHEMICAL REACTIONS
DECOMPOSITION
FABRICATION
FUEL PELLETS
OXIDES
OXYGEN COMPOUNDS
PELLETS
POWDERS
PRECIPITATION
PRODUCTION
PYROLYSIS
SEPARATION PROCESSES
SINTERING
THERMOCHEMICAL PROCESSES
URANATES
URANIUM COMPOUNDS
URANIUM DIOXIDE
URANIUM OXIDES