SYNTHESIS AND USES OF THE AMIDES EXTRACTANTS
- 1 January 1989
- journal article
- research article
- Published by Taylor & Francis in Solvent Extraction and Ion Exchange
- Vol. 7 (5) , 813-827
- https://doi.org/10.1080/07360298908962339
Abstract
Carboxylic acids amides (RR' NCOCR” ) malonic acid amides ( RR' NC0CH2 C0NRR' ) and substituted malonic acid amides ( RR,NC0CHR“ C0NRR ) are extractants of the actinides ions. They show good prospects for use in the nuclear industry because of their complete incinerability. In addition, their degradation products interfer much more less in the separation processes when compared with organophosphorus extractants. The synthesis and the purification of two typical extractants: N-N-di( 2-ethylhexyl) butyraraide ( C4H9 CHC3H5CH2) NC0C3H7and N,N' -dimethyl N,N' -dibutyl 1,3 diamide 2( 3-oxa) nonyl propane ( C4H9CH3NC0) 2CHC2H4OC6H1,3 are described. The purities, checked by NMR, elemental analysis and potentiometry, were in the range 98 to 99.5% The yields for monoamides were in the range 70 to 90% and for the diamides 20 to 40%Keywords
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