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 : 0000-00-00

Article Type : Research Paper

Abstract :Ethylenediamine-N,N`-ditetradecyl-N,N`-diacetic acid insert ignore into journalissuearticles values(EDDAT); was synthesized for the solvent extraction of La3+. EDDAT was prepared from ethylenediamine-N,N`-diacetic acid insert ignore into journalissuearticles values(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 Turk J Chem, vol 22, iss 4