Selective solvent extraction of some heavy metal ions from aqueous solutions by octafunctionalized resorcin[4]arenes
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Jan Dlugosz University
Publication date: 2020-01-13
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Joanna Kończyk   

Jan Dlugosz University
Physicochem. Probl. Miner. Process. 2020;56(2):271-285
This paper presents the results of the study on the extraction capacity of 1,8,15,22-tetra(1-heptyl)resorcin[4]arene and its octasubstituted derivatives containing thiophosphoryl, ester and amide groups in the presence of Pb(II), Zn(II), Cd(II) and Cr(III) in solvent extraction process. Effects of the structure and concentration of the resorcinarene extractant and the composition of the aqueous phase as well as its acidity on the efficiency and selectivity of removal of the examined metal ions from model aqueous solutions were determined. The 1:1 stoichiometry for complexes formed between Pb(II) and Cr(III) and the octasubstituted resorcin[4]arenes was determined by classical slope analysis and loading test.
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