THE SEPARATION OF ZN AND CU USING CHELATING ION-EXCHANGERS AND TEMPERATURE-VARIATIONS

Citation
Aa. Zagorodni et al., THE SEPARATION OF ZN AND CU USING CHELATING ION-EXCHANGERS AND TEMPERATURE-VARIATIONS, Separation science and technology, 32(1-4), 1997, pp. 413-429
Citations number
23
Categorie Soggetti
Engineering, Chemical",Chemistry
ISSN journal
01496395
Volume
32
Issue
1-4
Year of publication
1997
Pages
413 - 429
Database
ISI
SICI code
0149-6395(1997)32:1-4<413:TSOZAC>2.0.ZU;2-G
Abstract
This paper reports the results of a study on the ion-exchange equilibr ium of Cu2+ and Zn2+ at different temperatures on chelating ion-exchan ge resins: Amberlite IRC-718 (iminodiacetic acid based functional grou ps), VPC-1 (picolinic acid based) and thiourea-based resins. The separ ation factors and the conditional equilibrium constants of the ion-exc hange reaction were determined in temperature range from 15 to 75 degr ees C. An estimation of thermodynamic functions has also been carried out. Possibility of the separation of Cu and Zn mixture by dual temper ature ion-exchange method has been demonstrated.