| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 213185 | Hydrometallurgy | 2008 | 6 Pages |
Abstract
The extraction of Zn (II) by 5-azidomethyl-8-hydroxyquinoline (HZQ) has been studied. A modified Debye–Hückel equation was used for modeling of system Zn(II)/HZQ/HCl/Chloroform in various conditions of use. The distribution ratio of HZQ and of Zn (II) in organic and aqueous phases has been treated. log10 (PHZQ) = 2.91 is obtained for HZQ coefficient of partition and log10(kHZQ) = 4.23 for constant of chemical equilibrium HZQ + H3O+ ⇌H2(ZQ)+ + H2O. From quantitative evaluation of the extraction equilibrium data of Zn (II), it has been deduced that the predominant complex extracted is Zn(ZQ). The extraction constant of Zn (ZQ)2 has a value of log10 (k1200) =0.077. The calculated results are compared to the experimental data.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
B. Himmi, B. Messnaoui, S. Kitane, A. Eddaif, A. Alaoui, A. Bouklouz, M. Soufiaoui,