caa a22 4500 469109491 CHVBK 20180323133106.0 cr unu---uuuuu 170328e19920901xx s 000 0 eng 10.1007/BF02039922 doi (NATIONALLICENCE)springer-10.1007/BF02039922 Extraction separation of rare-earth elements by amines in the presence of complexing agents [Elektronische Daten] I. Separation of La and Sm in the presence of 2-hydroxyethylethylenediaminetriacetic acid [J. Kovalancik, M. Galova] The extraction separation of La and Sm by benzyldibutylamine (BDBA) from an aqueous solution containing 6 mol·dm−3 NaNO3 and 0.5 mol·dm−3 HNO3 is not very efficient. It may remarkably be improved by addition of a complexing agent, 2-hydroxyethylethylenediaminetriacetic acid (HEDTA). The effect of preferential La extraction into the organic phase together with the effect of preferential complexation of Sm in the aqueous phase may lead, by proper choice of the complexing agent concentration, to a 7-10 fold increase in αLa/Sm values. The procedure described here enables fairly good separation of a major from minor elements. Akadémiai Kiadó, 1992 Kovalancik J. Laboratory for Rare Metals Chemistry, Slovak Academy of Sciences, 043 85, Košice, (ČSFR) aut Galova M. Department of Chemistry, Faculty of Metallurgy, Technical University, 043 85, Košice, (ČSFR) aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 162/1(1992-09-01), 35-46 0236-5731 162:1<35 1992 162 10967 https://doi.org/10.1007/BF02039922 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02039922 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kovalancik J. Laboratory for Rare Metals Chemistry, Slovak Academy of Sciences, 043 85, Košice, (ČSFR) aut NATIONALLICENCE 700 1- Galova M. Department of Chemistry, Faculty of Metallurgy, Technical University, 043 85, Košice, (ČSFR) aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 162/1(1992-09-01), 35-46 0236-5731 162:1<35 1992 162 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 469109491 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer