Effect of crown ethers on the solvent extraction and separation of lanthanide(III) ions with 4-benzoyl-3-methyl-1-phenyl-2-pyrazolin-5-one
作者： Maria Petrova , Ivan Dukov
DOI: 10.2478/S11696-008-0012-4
关键词: Ionic strength 、 Inorganic chemistry 、 Lanthanide 、 18-Crown-6 、 Equilibrium constant 、 Chloride 、 Aqueous solution 、 Crown ether 、 Diluent 、 Chemistry
摘要: Synergistic solvent extraction of 14 lanthanides with mixtures 4-benzoyl-3-methyl-1-phenyl-2-pyrazolin-5-one (HP) and the crown ethers (S), 18-crown-6, benzo-18-crown-6 or dibenzo-18-crown-6 from an aqueous chloride medium constant ionic strength 0.1 mol dm−3 was investigated using benzene as a diluent. The composition species extracted determined LnP3 · S. addition ether to chelating extractant produced rather significant synergistic effects. On basis experimental data, values equilibrium constants, coefficients, separation factors were calculated.
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