PREPARATION OF URANIUM TRIOXIDE
Patent
·
OSTI ID:4082533
A method is given for preparing an improved form of UO/sub 3/ from aqueous solutions of uranyl nitrate. This form of UO/sub 3/ has increased density and granularity and, upon reduction with hydrogen, gives UO/sub 2/ of increased reactivity, especially in hydrofluorination to UF/sub 4/. This method consists of adding sulfur or a sulfur compound to the uranyl nitrate solution prior to denitration (concentration and calcination). The quantity of the sulfur compound added is best kept below 0.5 wt.% of the UO/sub 2/(NO/sub 3/)/sup 2/ 6H/ sub 2/O. Conversions of 65 to 100% of the resulting UO/sub 2/ to UF/sub 4/ were obtained. (D.L.C.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-15-011035
- OSTI ID:
- 4082533
- Report Number(s):
- GB 861191
- Country of Publication:
- United Kingdom
- Language:
- English
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