caa a22 4500 469110686 CHVBK 20180323133110.0 cr unu---uuuuu 170328e19921201xx s 000 0 eng 10.1007/BF02034810 doi (NATIONALLICENCE)springer-10.1007/BF02034810 El-Kot A. Chemistry Department, Faculty of Science, Zagazig University, Zagazig, Egypt aut Solvent extraction of heptavalent technetium [Elektronische Daten] [A. El-Kot] An extraction study was performed on technetium in its highest oxidation state as a function of nitric acid concentration at 25, 50 and 70 °C. A long chain amine (tri-n-octylamine TOA) and an organophosphorus solvent (TBP) have been investigated. Addition of NH4NO3 has a salting-out effect on the extraction of TBP in the aqueous phase and therefore decreases the distribution coefficient for heptavalent technetium. The mechanism of extraction is discussed in the light of the results obtained. Akadémiai Kiadó, 1992 Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 163/2(1992-12-01), 363-372 0236-5731 163:2<363 1992 163 10967 https://doi.org/10.1007/BF02034810 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02034810 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- El-Kot A. Chemistry Department, Faculty of Science, Zagazig University, Zagazig, Egypt aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 163/2(1992-12-01), 363-372 0236-5731 163:2<363 1992 163 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer