caa a22 4500 465733131 CHVBK 20180323111747.0 cr unu---uuuuu 170327e19900301xx s 000 0 eng 10.1007/BF02225701 doi (NATIONALLICENCE)springer-10.1007/BF02225701 Solvent extraction of zinc/II/ with sulphoxides: Theoretical analysis of extraction behaviour [Elektronische Daten] [M. Reddy, T. Ramamohan, A. Reddy, A. Damodaran] This paper describes a theoretical method for analyzing the behaviour of65Zn during solvent extraction from ammonium thiocyanate solutions with dialkyl sulphoxides. The mechanism of extraction of Zn/II/ from thiocyanate medium by sulphoxides may be represented by the following general equation: $$xM_{aq}^{m + } + ySCN_{aq}^ - + zS_{org} \rightleftharpoons [M_x /SCN/_y ]^{mx - y} .zS_{org} $$ where Mm+ is the metal ion and S is the extractant. Expressions for the distribution coefficients were derived taking into account complexation of the metal in the aqueous phase by inorganic ligands and also the dissociation of the extracted ion-pairs in the organic phase. Using these expressions, the values of the extraction constants were determined by a least-squares fit with the experimental extraction data. From these extraction constants, the various species extracted into the organic phase were resolved. The influence of the metal concentration, temperature and the diluent on the extraction of Zn/II/ has been investigated. Akadémiai Kiadó, 1990 Reddy M. Regional Research Laboratory, CSIR, 695 019, Trivandrum, India aut Ramamohan T. Regional Research Laboratory, CSIR, 695 019, Trivandrum, India aut Reddy A. Department of Chemistry, Sri Venkateswara University, 517 502, Tirupati, India aut Damodaran A. Regional Research Laboratory, CSIR, 695 019, Trivandrum, India aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 144/4(1990-03-01), 263-276 0236-5731 144:4<263 1990 144 10967 https://doi.org/10.1007/BF02225701 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02225701 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Reddy M. Regional Research Laboratory, CSIR, 695 019, Trivandrum, India aut NATIONALLICENCE 700 1- Ramamohan T. Regional Research Laboratory, CSIR, 695 019, Trivandrum, India aut NATIONALLICENCE 700 1- Reddy A. Department of Chemistry, Sri Venkateswara University, 517 502, Tirupati, India aut NATIONALLICENCE 700 1- Damodaran A. Regional Research Laboratory, CSIR, 695 019, Trivandrum, India aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 144/4(1990-03-01), 263-276 0236-5731 144:4<263 1990 144 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer