eng Ansari Education and Research Society Journal of Ultra Chemistry 0973-3450 2319-8036 June 2006 2 2 75 84 juc 809 article M. Ghosha 1 D.K. Mandala 1 A.K. Pramanicka 2 K. Biswasa 2 S. Mukherjeeb 3 G.C. Dasbu00a0 3 School of Material Science and Technology, Jadavpur University, Kolkatta (INDIA) School of Material Science and Technology, Jadavpur University, Kolkatta -32 (INDIA) Department of Metallurgical Engineering Jadavpur University, Kolkatta - 700 032 (INDIA) <p><br /> The different solvent extractants for nickel and cobalt recovery have been studied. Extraction behavior of nickel and cobalt has been carried out with LIX 84 and compared with an our laboratory synthesized&nbsp; extractants of stearyl ketone to establish on optimum condition for effective separation. Experimental data have been analyzed graphically and numerically to determine the stoichiometry of the extraction species. The synthesized extractant is characterized with I.R. Spectrometer and H1NMR spectrometer. The extraction of nickel and cobalt steryl ketone and LIX 84 proceed through a cation exchange mechanism. Cobalt and Nickel were extracted with steryl ketone and LIX 84 according to the following the reactions<br /> (Co+2)aq&nbsp; + &nbsp;2(RH)0rg&nbsp; = (CoR2)0rg&nbsp;&nbsp; +&nbsp; 2(H+)aq<br /> (Ni+2)aq&nbsp;&nbsp; +&nbsp;&nbsp;&nbsp; 2(RH)0rg&nbsp;= (NiR2)0rg &nbsp;&nbsp;+&nbsp; 2(H+)aq [R= Steryl ketone]<br /> (Co+2)aq&nbsp; +&nbsp; 2(LH)0rg&nbsp; = (CoL2)0rg&nbsp;&nbsp; +&nbsp; 2(H+)aq<br /> (Ni+2)aq&nbsp;&nbsp; +&nbsp; 2(LH)0rg&nbsp;&nbsp;&nbsp; = (NiL2)0rg&nbsp;&nbsp; +&nbsp; 2(H+)aq&nbsp;&nbsp;&nbsp; [L= LIX 84]<br /> Dependence of the type of extractant and pH on metal recovery is studied and reported.&nbsp;&nbsp;<br /> &nbsp;</p> https://journalofchemistry.org/paper/809/ Solvent extraction Nickel Cobalt