FIELD: chemistry.
SUBSTANCE: invention relates to novel asymmetric N,N-dialkylamides of formula (I):
(I),
where R is a linear or branched alkyl group having 8–15 carbon atoms. Invention also relates to a method of synthesis of N,N-dialkylamides of formula (I), use thereof for extracting uranium and/or plutonium from an aqueous solution of an acid, to their use for complete or partial separation of uranium from plutonium from water solution of acid, and to method from one cycle for treatment of water solution obtained at dissolution of spent nuclear fuel in nitric acid.
EFFECT: invention enables to extract, separate and purify uranium and plutonium contained in the solution in a single cycle without the need for any plutonium reduction operation.
13 cl, 2 dwg, 4 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF TREATING AQUEOUS NITRATE SOLUTION OBTAINED DURING DISSOLUTION OF SPENT NUCLEAR FUEL, PERFORMED IN ONE CYCLE AND NOT REQUIRING ANY OPERATION, INCLUDING REDUCTIVE RE-EXTRACTION OF PLUTONIUM | 2016 |
|
RU2706954C2 |
| ASYMMETRICAL N,N-DIALKYLAMIDES, IN PARTICULAR USED FOR SEPARATION OF URANIUM(VI) FROM PLUTONIUM(IV), THEIR SYNTHESIS AND APPLICATION | 2018 |
|
RU2762634C2 |
| USE OF ALDOXIMES CONTAINING AT LEAST FIVE CARBON ATOMS AS ANTI-NITROGEN AGENTS IN PLEROTINIUM RE-EXTRACTION OPERATIONS | 2016 |
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| METHOD OF TREATING SPENT NUCLEAR FUEL WITHOUT NEED FOR REDUCTIVE RE-EXTRACTION OF PLUTONIUM | 2011 |
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RU2558332C9 |
| CARBAMIDES FOR SEPARATION OF URANIUM (VI) AND PLUTONIUM (IV) WITHOUT PLUTONIUM (IV) REDUCTION | 2018 |
|
RU2782220C2 |
| METHOD OF PROCESSING IRRADIATED NUCLEAR FUEL ON NUCLEAR POWER PLANTS | 1997 |
|
RU2132578C1 |
| REGENERATION METHOD OF SPENT NUCLEAR FUEL AND OBTAINING OF MIXED URANIUM-PLUTONIUM OXIDE | 2007 |
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RU2431896C2 |
| METHOD FOR NEPTUNIUM REMOVAL DURING SEPARATION OF LONG-LIVING RADIONUCLIDES | 2010 |
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RU2454740C1 |
| USE OF HYDROXYIMINOALKANOIC ACIDS AS ANTI-NITROGEN AGENTS IN OPERATIONS OF REDUCTIVE RE-EXTRACTION OF PLUTONIUM | 2016 |
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RU2713495C2 |
| METHOD OF PRODUCING COMBINED SOLUTION OF U AND Pu | 2014 |
|
RU2561065C1 |
