Uptake of copper and cobalt in a complexing resin: shrinking-core model with two reaction fronts

被引：21

作者：

Arevalo, E ^{[1
]}

Rendueles, M ^{[1
]}

Fernandez, A ^{[1
]}

Rodrigues, A ^{[1
]}

Diaz, M ^{[1
]}

机构：

[1] Univ Oviedo, Dept Chem Engn, E-33071 Oviedo, Spain

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 1998年 / 13卷 / 01期

关键词：

D O I：

10.1016/S1383-5866(97)00054-3

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The kinetics of simultaneous ion exchange of copper and cobalt with iminodiacetic chelating resins has been studied. Microscopic studies of the ion-exchange process clearly show two different reaction fronts allowing the use of shrinking-core type models. The influence of system parameters is studied both theoretically and experimentally. Experimental results obtained at different total ion concentrations for various copper-cobalt ratios and particle diameters are reasonably predicted by the shrinking-core model, allowing diffusivity calculations. (C) 1998 Elsevier Science B.V.

引用

页码：37 / 46

页数：10

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