Effect of the 18-crown-6 and benzo-18-crown-6 on the solvent extraction and separation of lanthanide(III) ions with 8-hydroxyquinoline |
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| Authors: | M Atanassova |
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| Institution: | (1) Department of Inorganic Chemistry, University of Chemical Technology and Metallurgy, Sofia, Bulgaria |
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| Abstract: | The synergistic solvent extraction of 13 lanthanides with mixtures of 8-hydroxyquinoline (HQ) and the crown ethers (S) 18-crown-6
(18C6) or benzo-18-crown-6 (B18C6) in 1,2-dichloroethane has been studied. The composition of the extracted species has been
determined as LnQ3 · S. The values of the equilibrium constant and separation factor have been calculated. Here, the effect of the synergistic
agent (18C6 or B18C6) on the extraction process is discussed. |
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