FIELD: chemistry.
SUBSTANCE: invention can be used in nuclear technology. Uranium oxides with valency from +4 to +6 undergo the reaction with hydrogen fluoride forming the intermediate containing 40÷80 wt % of uranylfluoride or uranium tetrafluoride, the rest is initial products. Then obtained intermediate product is directed to flame reactor for fluorination by elemental fluorine taken in the excess 5÷7 %. The obtained uranium hexafluoride is separated from gas phase by desublimation. The fluorine-containing products remaining in the gas phase after desublimation are taken for entrapment by the initial uranium oxides.
EFFECT: invention allows to enhance the process efficiency and obtain uranium hexafluoride of 99,9% purity.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| URANIUM HEXAFLUORIDE CONVERSION METHOD | 1998 |
|
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| METHOD OF CONVERTING URANIUM HEXAFLUORIDE TO URANIUM TETRAFLUORIDE AND ANHYDROUS HYDROGEN FLUORIDE | 2015 |
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| METHOD OF CLEANING METAL SURFACES FROM URANIUM DEPOSITS | 2014 |
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| FUEL ELEMENT MANUFACTURING PROCESS | 2003 |
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| METHOD OF PRODUCING URANIUM TETRAFLUORIDE | 2011 |
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| METHOD OF PRODUCTION OF URANIUM HEXAFLUORIDE | 2006 |
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| METHOD FOR PRODUCTION OF UNSATURATED FLUORINE-CONTAINING CARBOHYDRATES, FLUORINE- AND CHLORINE-CONTAINING CARBOHYDRATES, FLUOROCHLOROCARBONS OR FLUOROCARBONS | 1994 |
|
RU2071462C1 |
| URANIUM HEXAFLUORIDE-INTO-URANIUM DIOXIDE CONVERSION METHOD AND INSTALLATION | 2001 |
|
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| METHOD OF CONVERTING WASTE URANIUM HEXAFLUORIDE INTO URANIUM METAL | 2010 |
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| METHOD OF PREPARING REDUCED-ENRICHMENT URANIUM HEXAFLUORIDE FROM HIGH-ENRICHMENT ARMS URANIUM | 2005 |
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