The Synthesis of new N4O2-Acyclic Schiff Base Ligand and Investigation of Its Ion Extraction Capability from Aqueous Media


Abstract in English

A new acyclic Schiff Base(II), containing nitrogen-oxygen donor atoms was synthesized by reaction of 1,2-Bis (5-bromo-2-formyl-phenoxy) ethane with 2- (2-Aminoethyl)pyridine and characterized. The liquid-liquid extraction of transition metals such as Cu+2, Cr+3 and Uranyl-picrate (UO2)+2 from aqueous phase to the organic phase was carried out using the novel ligand. The effect of chloroform and nitrobenzene as organic solvents on the metal extractions was investigated at 20oC by using Atomic Absorption and UV-visible Spectrophotometry. The influence of pH, ligand concentration, ionic strength, shaking time and ratio of aqueous-to-organic phases on extraction yield was tested at 20oC. The extractability of the tested metal ions were valuated.

References used

Shiri-Yekta, Z. Zamani, A. A. and Yaftian, M. R. (2009). Amelioration of extraction-separation efficiency of Zn(II), Cd(II) and Pb(II) ions with bis(2- ethylhexyl) phosphoric acid in the presence of a water-soluble N4-type Schiff base ligand, Separation and Purification Technology, V. 66 pp.98-103
Stary, J. (1964). The Solvent Extraction of Metal Chelates, Pergamon Press, Oxford
Marcus, Y. and Kertes, A. S. (1969). Ion Exchange and Solvent Extraction of Metal Complexes, Wiley, London

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