| Autor: |
Safiulina A; Joint Stock Company A. A. Bochvar High-Technology Research Institute of Inorganic Materials, ul. Rogova 5a, 123098 Moscow, Russia., Borisova N; Chemical Faculty, Moscow State University, Leninskie Gory 1, 119991 Moscow, Russia., Grigoriev M; Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect 31, Building 4, 119071 Moscow, Russia., Baulin D; Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect 31, Building 4, 119071 Moscow, Russia., Baulin V; Institute of Physiologically Active Substances, Russian Academy of Sciences, Severnyi Proezd 1, Chernogolovka, 142432 Moscow, Russia., Tsivadze A; Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect 31, Building 4, 119071 Moscow, Russia. |
| Abstrakt: |
With the aim to find new efficient extractants for recovery of f-block elements from processing wastes of different origin, we have compared a series of phosphoryl-containing podands, including (2-(diphenylphosphorylmethoxy)phenyl)diphenylphosphine oxide 1 and its analogues 5 - 7 , where the ArP(O)Ph 2 group of phosphine oxide type is replaced by phosphonic fragments. Quantum-chemical modelling of the structures of phosphoryl-containing podands 1 and 5 - 7 has been performed, which was later confirmed by the data of X-ray diffraction. The features of extraction of nitric acid, as well as U(VI), Th(IV), Nd(III), and Ho(III) with compounds 1 and 5 - 7 from nitric acid media into 1,2-dichloroethane have been studied. The compositions of extracted complexes have been determined. |
