Solvent Extraction of La3+ withEthylenediamine-N,N'-ditetradecyl-N,N'-diacetic Acid(EDDAT) in Dichloromethane

Authors : Mürüvvet Yurdakoç, Halil Hoşgören

Pages : 373-378

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Publication Date : 9999-12-31

Article Type : Makaleler

Abstract :Ethylenediamine-N,N'-ditetradecyl-N,N'-diacetic acid (EDDAT) was synthesized for the solvent extraction of La3+. EDDAT was prepared from ethylenediamine-N,N'-diacetic acid (EDDA) and tetradecyl bromide in a basic n-amylalcohol-ethanol-water solvent system. The structure of this new extracting reagent was identified according to spectroscopic data, i.e. 13C NMR, 1H NMR, and elemental analysis results. The solvent extraction of La3+ with EDDAT in dichloromethane was studied as a function of parameters of the aqueous and organic phases. The optimal extraction conditions were determined. The extraction yield increased with a decrease in hydrogen ions in the aqueous phase. Stripping of the La3+ loaded organic phase was achieved with HCl aqueous solution. The effect of stripping as a function of the HCl concentration was also studied.
Keywords : Turk. J. Chem., 22, (1998), 373-378. Full text: pdf Other articles published in the same issue: Turk. J. Chem., vol.22, iss.4.