FIELD: recovering solid irradiated nuclear fuels.
SUBSTANCE: proposed method for recovering solid irradiated nuclear fuel in the form of various uranium-containing composites (metal, carbide, oxide, and the like) for its further reuse in nuclear-fuel cycle includes dispersion of mentioned composites by way of thermal oxidation followed by vacuum baking at the same time distilling in vacuum volatile products of fission, such as cesium-137. Dispersion is conducted in controlled oxygen-containing medium while cycling them at temperatures ranging between 400 and 1000 °C; baking is conducted for 1 h at residual pressure of maximum 10-2 Pa and temperature of minimum 1300 °C.
EFFECT: ability of reducing gamma-activity of irradiated nuclear fuel, mainly cesium, to desired level for its reuse in nuclear fuel cycle.
5 cl, 1 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PROCESSING OF IRRADIATED NUCLEAR FUEL | 2010 |
|
RU2441289C1 |
| MODE OF PROCESSING IRRADIATED NUCLEAR FUEL | 2004 |
|
RU2253916C1 |
| METHOD OF PROCESSING IRRADIATED NUCLEAR FUEL | 2015 |
|
RU2591215C1 |
| METHOD FOR RECOVERY OF URANIUM-CONTAINING COMPOUNDS | 1999 |
|
RU2158973C2 |
| METHOD OF TESTING FOR COMPATIBILITY OF NUCLEAR FUEL POWDER WITH MATERIAL OF FUEL ELEMENT CLADDING | 2015 |
|
RU2581846C1 |
| METHOD OF PROCESSING URANIUM-CONTAINING COMPOSITION | 2007 |
|
RU2343119C1 |
| METHOD OF PROCESSING IRRADIATED FUEL | 2011 |
|
RU2459299C1 |
| METHOD FOR STORAGE OF SPENT NUCLEAR FUEL | 2014 |
|
RU2555856C1 |
| METHOD OF LONG-LIVING RADIONUCLIDES FIXATION FOR STORAGE AND TRANSMUTATION | 2007 |
|
RU2343575C2 |
| METHOD OF OXIDIZING PROCESSING (VOLOXIDATION) OF IRRADIATED NUCLEAR FUEL | 2016 |
|
RU2619583C1 |
