Application of commercially available anion exchange resins for preconcentration of palladium(II) complexes from chloride-nitrate solutions

被引：10
|
作者：
Hubicki, Zbigniew [1 ]
Wolowicz, Anna [1 ]
Wawrzkiewicz, Monika [1 ]
机构：
[1] Marie Curie Sklodowska Univ, Fac Chem, Dept Inorgan Chem, PL-20031 Lublin, Poland
来源：
CHEMICAL ENGINEERING JOURNAL | 2009年 / 150卷 / 01期
关键词：
Anion exchanger; Sorption kinetics; Preconcentration; Noble metals; PLATINUM-GROUP METALS; SPECTROPHOTOMETRIC DETERMINATION; AQUEOUS-SOLUTIONS; ION-EXCHANGERS; REACTIVE DYES; NITRIC-ACID; SORPTION; SEPARATION; ADSORPTION; EXTRACTION;
D O I：
10.1016/j.cej.2008.12.007
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The possibility of selective preconcentration of palladium(H) complexes by the polystyrene-divinylbenzene (Varion ATM, ADM) and polyacrylate (Varion ADAM) anion exchangers and the mechanism of their sorption onto these anion exchangers were investigated. The aim of this study was to find an appropriate model for the kinetics of Pd(II) complexes sorption and examine the influence of acids concentration and phase contact time on palladium(II) preconcentration. The rate constants for the three models (pseudo-first and pseudo-second and intraparticle diffusion) and the correlation coefficients have been calculated in order to assess which model provides the best fit predicted data with experimental results. The pseudo-second order equation provides the best fit to experimental data. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：96 / 103
页数：8
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