FIELD: chemistry.
SUBSTANCE: invention relates to synthesis of granular chemical absorbents. The method of preparing sodium fluoride-based granular mixed sorbent involves hydrofluorination of annealed granules at 300-350°C, where the said granules are moulded from a paste containing the following (wt %): sodium carbonate 92-80, freshly prepared gel-like calcium hydroxide 4-16, sodium hydroxide 0.5-4. The obtained sorbent has the following composition: 80-85% NaF and 5-20% CaF2.
EFFECT: method increases mechanical strength of the sorbent, porosity and uranium hexafluoride capacity.
3 cl, 1 ex, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING MIXED FLUORINE SORBENT FOR CLEANING OF HEXAFLUORIDES OF TUNGSTEN, URANIUM, MOLYBDENUM AND RHENIUM FROM HYDROGEN FLUORIDE | 2009 |
|
RU2408421C1 |
| MIXED INORGANIC CHEMICAL ABSORBER | 2007 |
|
RU2342982C2 |
| METHOD FOR PREPARING SODIUM FLUORIDES | 2001 |
|
RU2219124C2 |
| METHOD CLEANING URANIUM HEXAFLUORIDE FROM TECHNETIUM-99 NUCLIDE | 2006 |
|
RU2326052C2 |
| METHOD OF CLEANING VENTILATION EMISSIONS FROM TOXIC GASES | 2012 |
|
RU2493901C1 |
| METHOD OF NEUTRALIZATION OF THE FLUORINE-CONTAINING GASES | 2006 |
|
RU2314862C1 |
| URANYL FLUORIDE-BASED SORBENT AND METHOD OF ITS PRODUCTION | 2010 |
|
RU2422199C1 |
| METHOD OF PREPARING SORBENT FOR TRAPPING GASEOUS FLUORIDES | 2001 |
|
RU2179883C1 |
| METHOD OF PRODUCTION OF LITHIUM FLUORIDES FOR ELECTROLYTIC PRODUCTION OF ALUMINUM (VERSIONS) | 2004 |
|
RU2277068C2 |
| METHOD FOR SEPARATING FLUOR CONTAINING GAS MIXTURES | 2006 |
|
RU2328335C1 |
