METHOD OF PURIFYING URANIUM
Journal Article
·
· Nuclear Eng.
OSTI ID:4336884
In some uses of uranium, concentrations of boron over 0.5 ppm are definitely objectionable. Uranium of low boron impurity may be obtained by electrolysis of a bath composed of a halide of uranium fused in a mixture of chlorides held at such a temperature that the metallic uranium is deposited as a coarse powder on a cathode of. e.g., molybdenum. Higher bath temperatures than 900 deg C would reduce the boron content but cause difficulties owing to excessive corrosion and liquefying of the uranium at the cathode. The removal of further amounts of boron may be effectively accomplished by burning the uranium to form an oxide and then heating the uranium oxide to above 1,000 deg C (preferably 1,200 deg C) at which temperature a substantial proportion of the boron impurities is volatilized from the oxide. The purified oxide then may be converted to the nitrate and uranium metal produced electrolytically without further increase in the boron content.
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-12-012096
- OSTI ID:
- 4336884
- Journal Information:
- Nuclear Eng., Journal Name: Nuclear Eng. Vol. Vol: 3
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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