Adsorption of zinc onto anionic ion-exchange resin from cyanide barren solution

Yali Zhang; Xianjin Yu; Qinglong Wang; Zhijun Jiang; Tao Fang

doi:10.1016/j.cjche.2014.01.003

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Adsorption of zinc onto anionic ion-exchange resin from cyanide barren solution

分离科学与工程 | Updated：2026-01-06

- Adsorption of zinc onto anionic ion-exchange resin from cyanide barren solution
- Chinese Journal of Chemical Engineering Vol. 23, Issue 4, Pages: 646-651(2015)
- Affiliations：
  
  2 Zibo Guoli New Power Source Technology Co., Ltd.,Shandong,Zibo,China,255086
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2014.01.003
  CLC：
- Published：2015
- Accepted：
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Yali Zhang, Xianjin Yu, Qinglong Wang, Zhijun Jiang, Tao Fang. Adsorption of zinc onto anionic ion-exchange resin from cyanide barren solution[J]. Chin.J.Chem.Eng., 2015, 23(4): 646-651.
DOI：

Yali Zhang, Xianjin Yu, Qinglong Wang, Zhijun Jiang, Tao Fang. Adsorption of zinc onto anionic ion-exchange resin from cyanide barren solution[J]. Chin.J.Chem.Eng., 2015, 23(4): 646-651. DOI： 10.1016/j.cjche.2014.01.003.

摘要

Abstract

Removal of zinc fromcyanide barren solution is obligatory for its reuse in leach process. Batch experiments were carried out to evaluate the adsorption capacity of resins under different experimental conditions

including concentration

resin amount

initial pH

contact time and temperature. More than 99% of adsorption was achieved under the optimal condition. High adsorption rates on the resin were observed at the beginning and plateau values were obtained in 60 min. The thermodynamic parameters (free energy change ΔG

enthalpy change ΔS and entropy change ΔH) for the adsorption were evaluated. The adsorption kinetic mechanism was studied with four models. The experimental results show that the adsorption follows the Langmuir isotherm and the kinetics follows the pseudo-second-order model.

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