METAL-PROTON EQUILIBRIUM RELATIONS IN A CHELATING IMINODIACETIC RESIN

被引：30

作者：

MIJANGOS, F ^{[1
]}

DIAZ, M ^{[1
]}

机构：

[1] UNIV OVIEDO, DEPT CHEM ENGN, OVIEDO, SPAIN

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1992年 / 31卷 / 11期

关键词：

D O I：

10.1021/ie00011a017

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A model of equilibrium including the pH effect was proposed and tested with experimental data of the Na-H-metal systems onto chelating resins. The protonation constants were used to calculate the complexing capacity of the metals Cu, Ni, Co, and Zn in the iminodiacetic type resin. This equilibrium model that considers two stoichiometries for the retention of divalent nonferrous metals was extended for simultaneous multimetallic uptake and applied to a real hydrometallurgical effluent. Another simplified equilibrium model that only requires one equilibrium constant for each metal has shown to fit fairly well the experimental results.

引用

页码：2524 / 2532

页数：9