Process for obtaining UO.sub.2 fuel pellets from metallic U without producing any effluent
US5091120A · kind A · utility
3Cited by
10References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1990 |
| Grant date | Feb 25, 1992 |
| Priority date | — |
| Expiry date | Nov 26, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Process for obtaining nuclear fuel pellets, which produces no liquid effluent, for which the starting product is metallic uranium, which is oxidized to U.sub.3 O .sub.8, then crushed and either reduced to UO.sub.2 and activated (or vice versa) with the aid of at least one fine milling operation, or reduced to UO.sub.2 and activated using at least one oxidation-reduction cycle, the UO.sub.2 obtained then being shaped by pressing and fritting and the intermediate powders obtained are dense and pourable, no intermediate conditioning operation being required.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.