CONTINUOUS PRECIPITATION METHOD FOR CONVERSION OF URANYL NITRATE TO URANIUM HEXAFLUORIDE
Patent
·
OSTI ID:4762882
A continuous precipitation process is given for converting a uranyl nitrate solution to uranium tetrafluoride. A stream of the uranyl nitrate solution and a stream of an aqueous ammonium hydroxide solution are continuously introduced into an agitated reaction zone maintained at a pH of 5.0 to 6.5. Flow rates are adjusted to provide a mean residence time of the resulting slurry in the reaction zone of at least 30 minutes. After a startup period of two hours the precipitate is recovered from the effluent stream by filtration and is converted to uranium tetrafluoride by reduction to uranium dioxide with hydrogen and reaction of the uranium dioxide with anhydrous hydrogen fluoride. (AEC)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-17-003061
- Assignee:
- U.S. Atomic Energy Commission
- Patent Number(s):
- US 3063792
- OSTI ID:
- 4762882
- Country of Publication:
- United States
- Language:
- English
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