FIELD: power industry.
SUBSTANCE: method for treatment of reprocessed uranium from plutonium, thorium and neptunium includes uranium extraction by tributyl phosphate in hydrocarbon reducer from nitric-acid solution, extract washing and uranium re-extraction, at that fluor-ion is introduced in concentration of 0.03-0.52 g/l to nitric-acid solution of reprocessed uranium purposed for extraction. Besides uranium (IV) stabilised by hydrazine up to concentration of 0.5 g/l nitric-acid solution of reprocessed uranium purposed for extraction. Reprocessed uranium solution with uranium concentration of 400-500 g/l is subject to extraction.
EFFECT: invention allows improve treatment of reprocessed uranium from plutonium, thorium and neptunium.
3 cl, 2 ex, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING COMBINED SOLUTION OF U AND Pu | 2014 |
|
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| APP IRRADIATED FUEL PROCESSING METHOD | 2013 |
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| METHOD FOR SEPARATION OF NEPTUNIUM AND PLUTONIUM IN NITRIC ACID SOLUTIONS (VARIANTS) | 2021 |
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| METHOD OF EXTRACTION AND SEPARATION OF PLUTONIUM AND NEPTUNIUM | 2015 |
|
RU2642851C2 |
| PROCESSING METHOD OF IRRADIATED NUCLEAR FUEL OF NUCLEAR POWER PLANTS | 2010 |
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| METHOD OF PROCESSING IRRADIATED NUCLEAR FUEL ON NUCLEAR POWER PLANTS | 1997 |
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RU2132578C1 |
