caa a22 4500 469109777 CHVBK 20180323133107.0 cr unu---uuuuu 170328e19921001xx s 000 0 eng 10.1007/BF02035390 doi (NATIONALLICENCE)springer-10.1007/BF02035390 Extraction and separation of Zr, Nb and Hf by Aliquat 336 and its mixtures with TOPO from acidic thiocyanate media [Elektronische Daten] [P. Mishra, V. Chakra Vortty, K. Dash, N. Das, S. Bhattacharyya] Presence of thiocyanate ions results in appreciable extraction of Zr(IV) by Aliquat 336 from low aqueous HCl acidities, i.e., 0.1 to 4.5M. The variation of concentrations of HCl, thiocyanate and Aliquat 336 greatly influences the extent of extraction. Mixtures of Aliquat 336 and TOPO result in synergistic extraction of Zr and Hf from acidic thiocyanate media, the extracted species being the disolvate with TOPO. By controlled adjustment of HCl, SCN− and Aliquat 336 concentrations, separation of Zr, Nb and Hf is possible. A maximum separation factor (DNb/DZr) of 3675 has been achieved under certain conditions. Akadémiai Kiadó, 1992 Mishra P. Department of Chemistry, Utkal University, Vani Vihar, 751 004, Bhubaneswar, (India) aut Chakra Vortty V. Department of Chemistry, Utkal University, Vani Vihar, 751 004, Bhubaneswar, (India) aut Dash K. Department of Chemistry, Utkal University, Vani Vihar, 751 004, Bhubaneswar, (India) aut Das N. Nuclear Chemistry Division, Saha Institute of Nuclear Physics, Bidhan Nagar, 700 064, Calcutta, (India) aut Bhattacharyya S. Nuclear Chemistry Division, Saha Institute of Nuclear Physics, Bidhan Nagar, 700 064, Calcutta, (India) aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 162/2(1992-10-01), 289-298 0236-5731 162:2<289 1992 162 10967 https://doi.org/10.1007/BF02035390 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02035390 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mishra P. Department of Chemistry, Utkal University, Vani Vihar, 751 004, Bhubaneswar, (India) aut NATIONALLICENCE 700 1- Chakra Vortty V. Department of Chemistry, Utkal University, Vani Vihar, 751 004, Bhubaneswar, (India) aut NATIONALLICENCE 700 1- Dash K. Department of Chemistry, Utkal University, Vani Vihar, 751 004, Bhubaneswar, (India) aut NATIONALLICENCE 700 1- Das N. Nuclear Chemistry Division, Saha Institute of Nuclear Physics, Bidhan Nagar, 700 064, Calcutta, (India) aut NATIONALLICENCE 700 1- Bhattacharyya S. Nuclear Chemistry Division, Saha Institute of Nuclear Physics, Bidhan Nagar, 700 064, Calcutta, (India) aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 162/2(1992-10-01), 289-298 0236-5731 162:2<289 1992 162 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer