FIELD: chemistry.
SUBSTANCE: invention relates to the technology of recycling nuclear energy materials and specifically to methods of cleaning uranium hexafluoride from ruthenium fluorides, and can be used in returning uranium, extracted from spent nuclear fuel, into the fuel cycle of light water reactors. The method of cleaning uranium hexafluoride from ruthenium fluorides involves reaction of gaseous uranium hexafluoride with a sorbent, the sorbent used being porous granules of sintered metal powder of nickel or nickel which contains up to 10 wt % copper.
EFFECT: invention provides efficient cleaning of uranium hexafluoride from ruthenium fluorides at low temperatures, safety and simplification of the process, and also enables to reuse the sorbent after regeneration.
5 cl, 2 tbl, 5 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARING GRANULATED ALUMINUM FLUORIDE FOR TRAPPING GASEOUS RUTHENIUM-106 COMPOUND | 2003 |
|
RU2237020C1 |
| METHOD CLEANING URANIUM HEXAFLUORIDE FROM TECHNETIUM-99 NUCLIDE | 2006 |
|
RU2326052C2 |
| METHOD OF PRODUCING MIXED FLUORINE SORBENT FOR CLEANING OF HEXAFLUORIDES OF TUNGSTEN, URANIUM, MOLYBDENUM AND RHENIUM FROM HYDROGEN FLUORIDE | 2009 |
|
RU2408421C1 |
| METHOD OF PREPARING SATURATED FLUORIDES | 1995 |
|
RU2093469C1 |
| METHOD OF REFINING URANIUM HEXAFLUORIDE FROM RUTHENIUM COMPOUNDS | 1993 |
|
RU2068287C1 |
| URANYL FLUORIDE-BASED SORBENT AND METHOD OF ITS PRODUCTION | 2010 |
|
RU2422199C1 |
| METHOD OF PREPARING REDUCED-ENRICHMENT URANIUM HEXAFLUORIDE FROM HIGH-ENRICHMENT ARMS URANIUM | 2005 |
|
RU2292303C2 |
| METHOD OF PREPARING SORBENT FOR TRAPPING GASEOUS FLUORIDES | 2001 |
|
RU2179883C1 |
| METHOD OF PROCESSING HIGH-CONCENTRATION URANIUM | 1996 |
|
RU2112744C1 |
| METHOD FOR RECOVERING PLUTONIUM-CONTAINING SORBENTS OF ALKALI METAL FLUORIDES | 2005 |
|
RU2293382C1 |
