Original Articles: 2014 Vol: 6 Issue: 4
Extraction and separation of Cu(II) in presence of Fe(II) and Fe(III) from acidic solution using LIX 973NS-LV
Abstract
The extraction of copper(II) from chloride solution was investigated using 5-nonylsalicylaldoxime and 2-hydroxy-5- nonylacetophenone oxime (LIX®973 NS-LV) in kerosene. The parameters which could affect the extraction such as shaking time, hydrochloric acid concentration, extractant concentration, salt concentration were separately investigated. The extraction equilibrium was achieved within 2 minutes. Quantitative extraction of copper was obtained with 10%(v/v) LIX®973 NS-LV in kerosene. Presence of sodium acetate in the aqueous phase influences the extraction of copper. Separation of copper from a synthetic copper-iron solution containing 0.05M Cu(II) with 0.05M either Fe(II) or Fe(III) each and 0.05 M [Fe(II) + Fe(III)] has been carried out using 10%(v/v) LIX®973 NSLV in kerosene. The extraction of Fe(II) was nil whilst highest separation factor (β = DCu/DFe) of 25.13 was obtained with Fe(III) from 0.005M HCl and the separation factor increased to 7325 in presence of 0.5M sodium sulfate.