NITROGEN REAGENTS IN METAL-ION SEPARATION - PART-IX - EXTRACTION OF COBALT AND NICKEL USING IMIDAZOLE DERIVATIVES

Authors
DUPREEZ JGH MATTHEUS C SUMTER N EDGE W POTGIETER C VANBRECHT BJ
Citation
Jgh. Dupreez et al., NITROGEN REAGENTS IN METAL-ION SEPARATION - PART-IX - EXTRACTION OF COBALT AND NICKEL USING IMIDAZOLE DERIVATIVES, Solvent extraction and ion exchange, 16(4), 1998, pp. 1033-1046
Citations number
10
Categorie Soggetti
Chemistry
Journal title
Solvent extraction and ion exchange → ACNP
ISSN journal
07366299
Volume
16
Issue
4
Year of publication
1998
Pages
1033 - 1046
Database
ISI
SICI code
0736-6299(1998)16:4<1033:NRIMS->2.0.ZU;2-K
Abstract
The extraction capability of derivatives of imidazole towards Co(II) a nd Ni(II) has been investigated in dilute acid medium in the presence of each of chloride, perchlorate and thiocyanate ions. The influence o f the stereochemistry of the substituted imidazole on the extraction b ehaviour has been investigated. Two-phase potentiometric titrations we re employed to determine the nature of the metal species extracted int o the organic phases. The electronic spectra of the extracted metal sp ecies have been employed to provide information of the nature of such species.