| abstract |
FIELD: chemistry. n SUBSTANCE: invention relates to novel asymmetric N,N-dialkylamides of formula (I): n (I), n 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. n 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. n 13 cl, 2 dwg, 4 tbl |