Method for sulphurizing a UO2 powder and method for making nuclear fuel pellets based on UO2 or mixed oxide (U,Pu)O2 oxide with added sulphur
US7309473B2 · kind B2 · utility
12Cited by
8References
17Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 1, 2002 |
| Grant date | Dec 18, 2007 |
| Priority date | — |
| Expiry date | Feb 24, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Sulphidation method for a UO2 powder, in which said powder is sulfurated by bringing it into contact with a gaseous sulphidation agent.Method for manufacturing nuclear fuel pellets based on uranium oxide, or mixed oxide of uranium and plutonium, from a load of totally or partially sulfurated UO2 powder or UO2 powder and PuO2 powder, by lubrication, pelletizing and sintering, in which: the load of powder subjected to the lubrication, pelletizing and sintering is prepared by the following successive steps:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.