Solvent extraction of toxic heavy metals with 8-hydroxyquinoline extractants from effluents
Interfacial activity and extraction data of position isomers of alkyl-8-hydroxyquinoline derivatives have been determined. The studies were performed to find possibilities for simultaneous separation of Cu2+, Ni2+, Zn2+, Cd2+ and Hg2+ from percolating water model systems. 2-Nonyl-8-hydroxyquinoline shows high extractabilities for all metal ions. The addition of decanol to the organic phase gives a significant increase of extraction caused by alcohol solvation of the complex extracted.
Key words8-hydroxyquinoline extractants interfacial activity percolating water solvent extraction toxic heavy metals
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- 1.Flett DS, Cox M, Melling J (1991) In: Lo TC, Baird MHI, Hanson C (eds) Handbook of Solvent Extraction. Krieger Publishing Company, Malarbar-Florida, pp 629–647Google Scholar
- 2.Mühl P, Gloe K (1989) Chem Techn 41:457–462Google Scholar
- 4.Cox M, Flett DS (1979) Proc Int Solv Extr Conf, ISEC 1977, CIM Spec Vol 21:63–72Google Scholar
- 7.Stephan H, Gloe K, Krüger T, Chartroux C, Neumann R, Weber E, Möckel A, Woller N, Subklew G, Schwuger MJ (1996) Solv Extr Res Devel (Japan) 3: accepted for publicationGoogle Scholar
- 9.Metal ions of percolating water are complexed by polyhydroxy carboxylic acids possessing additional nitrogen donor atoms (humic and fulvic acids); Sigg L, Stumm W (1993) Aquatische Chemie Teubner-Verlag, Stuttgart, p 201Google Scholar
- 10.Lange H (1975) Tenside Detergents 12:27–34Google Scholar
- 11.Szymanowski J (1993) Hydroxyoximes and Copper Hydrometallurgy. CRC Press, Boca Raton-Ann Arbor-London-Tokyo, pp 145–168Google Scholar