Laboratory and pilot-plant studies on the conversion of uranyl nitrate hexahydrate to UF/sub 6/ by fluidized-bed processes
This report describes laboratory and pilot-plant studies on the conversion of uranyl nitrate hexahydrate (UNH) to UF/sub 6/ and on purification of the UF/sub 6/. Experimental laboratory studies on the removal of residual nitrate from uranium trioxide (UO/sub 3/) calcine and the fluorination of technetium and subsequent sorption on MgF/sub 2/ were conducted to support the pilot-plant work. Two engineering-scale pilot plants utilizing fluidized-bed processes were constructed for equipment and process testing of the calcination of UNH to UO/sub 3/ and the direct fluorination of UO/sub 3/ to UF/sub 6/.
- Research Organization:
- Oak Ridge National Lab., Tenn. (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 7287791
- Report Number(s):
- ORNL/TM-5913
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
050400* -- Nuclear Fuels-- Feed Processing
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
ACTINIDE COMPOUNDS
CALCINATION
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CONVERSION
DECOMPOSITION
FLUIDIZED BED
FLUORIDES
FLUORINATION
FLUORINE COMPOUNDS
FUNCTIONAL MODELS
HALIDES
HALOGEN COMPOUNDS
HALOGENATION
HYDRATES
NITRATES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PILOT PLANTS
PURIFICATION
PYROLYSIS
SYNTHESIS
URANIUM COMPOUNDS
URANIUM FLUORIDES
URANIUM HEXAFLUORIDE
URANYL COMPOUNDS
URANYL NITRATES
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
ACTINIDE COMPOUNDS
CALCINATION
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CONVERSION
DECOMPOSITION
FLUIDIZED BED
FLUORIDES
FLUORINATION
FLUORINE COMPOUNDS
FUNCTIONAL MODELS
HALIDES
HALOGEN COMPOUNDS
HALOGENATION
HYDRATES
NITRATES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PILOT PLANTS
PURIFICATION
PYROLYSIS
SYNTHESIS
URANIUM COMPOUNDS
URANIUM FLUORIDES
URANIUM HEXAFLUORIDE
URANYL COMPOUNDS
URANYL NITRATES