Ion-exchange equilibria of Cu(II) and Zn(II) from aqueous solutions with Chelex 100 and Amberlite IRC 748 resins

Li Chun Lin; Ruey Shin Juang

doi:10.1016/j.cej.2005.07.009

Ion-exchange equilibria of Cu(II) and Zn(II) from aqueous solutions with Chelex 100 and Amberlite IRC 748 resins

Li Chun Lin, Ruey Shin Juang^*

^*Corresponding author for this work

Yuan Ze University

Research output: Contribution to journal › Journal Article › peer-review

96 Scopus citations

Abstract

Two chelating ion exchange resins Chelex 100 and Amberlite IRC 748 (formerly, IRC 718), both which have iminodiacetic acid (IDA) function group, were used to exchange Cu(II) and Zn(II) from aqueous solutions. Batch experiments were performed using the Na-form resins by varying the initial concentration of metals (0.8-10.5 mol/m³), initial aqueous pH (1.0-5.0), and temperature (15-45 °C). It was shown that the amount of Cu(II) and Zn(II) exchanged increased with increasing the pH value and temperature. In addition, the amount of metals exchanged using IRC 748 resin was greater than Chelex 100 resin under comparable conditions. The equilibrium data were treated and compared by the conventional Langmuir adsorption isotherm and by the mass-action law that takes into account the activity corrections of the ions in the aqueous phase. The enthalpy changes for the present ion-exchange processes were also evaluated and discussed.

Original language	English
Pages (from-to)	211-218
Number of pages	8
Journal	Chemical Engineering Journal
Volume	112
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cej.2005.07.009
State	Published - 01 09 2005
Externally published	Yes

Keywords

Chelating resins
Cu(II)
Equilibrium studies
Ion exchange
Zn(II)

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10.1016/j.cej.2005.07.009

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title = "Ion-exchange equilibria of Cu(II) and Zn(II) from aqueous solutions with Chelex 100 and Amberlite IRC 748 resins",

abstract = "Two chelating ion exchange resins Chelex 100 and Amberlite IRC 748 (formerly, IRC 718), both which have iminodiacetic acid (IDA) function group, were used to exchange Cu(II) and Zn(II) from aqueous solutions. Batch experiments were performed using the Na-form resins by varying the initial concentration of metals (0.8-10.5 mol/m3), initial aqueous pH (1.0-5.0), and temperature (15-45 °C). It was shown that the amount of Cu(II) and Zn(II) exchanged increased with increasing the pH value and temperature. In addition, the amount of metals exchanged using IRC 748 resin was greater than Chelex 100 resin under comparable conditions. The equilibrium data were treated and compared by the conventional Langmuir adsorption isotherm and by the mass-action law that takes into account the activity corrections of the ions in the aqueous phase. The enthalpy changes for the present ion-exchange processes were also evaluated and discussed.",

keywords = "Chelating resins, Cu(II), Equilibrium studies, Ion exchange, Zn(II)",

author = "Lin, {Li Chun} and Juang, {Ruey Shin}",

year = "2005",

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doi = "10.1016/j.cej.2005.07.009",

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T1 - Ion-exchange equilibria of Cu(II) and Zn(II) from aqueous solutions with Chelex 100 and Amberlite IRC 748 resins

AU - Lin, Li Chun

AU - Juang, Ruey Shin

PY - 2005/9/1

Y1 - 2005/9/1

N2 - Two chelating ion exchange resins Chelex 100 and Amberlite IRC 748 (formerly, IRC 718), both which have iminodiacetic acid (IDA) function group, were used to exchange Cu(II) and Zn(II) from aqueous solutions. Batch experiments were performed using the Na-form resins by varying the initial concentration of metals (0.8-10.5 mol/m3), initial aqueous pH (1.0-5.0), and temperature (15-45 °C). It was shown that the amount of Cu(II) and Zn(II) exchanged increased with increasing the pH value and temperature. In addition, the amount of metals exchanged using IRC 748 resin was greater than Chelex 100 resin under comparable conditions. The equilibrium data were treated and compared by the conventional Langmuir adsorption isotherm and by the mass-action law that takes into account the activity corrections of the ions in the aqueous phase. The enthalpy changes for the present ion-exchange processes were also evaluated and discussed.

AB - Two chelating ion exchange resins Chelex 100 and Amberlite IRC 748 (formerly, IRC 718), both which have iminodiacetic acid (IDA) function group, were used to exchange Cu(II) and Zn(II) from aqueous solutions. Batch experiments were performed using the Na-form resins by varying the initial concentration of metals (0.8-10.5 mol/m3), initial aqueous pH (1.0-5.0), and temperature (15-45 °C). It was shown that the amount of Cu(II) and Zn(II) exchanged increased with increasing the pH value and temperature. In addition, the amount of metals exchanged using IRC 748 resin was greater than Chelex 100 resin under comparable conditions. The equilibrium data were treated and compared by the conventional Langmuir adsorption isotherm and by the mass-action law that takes into account the activity corrections of the ions in the aqueous phase. The enthalpy changes for the present ion-exchange processes were also evaluated and discussed.

KW - Chelating resins

KW - Cu(II)

KW - Equilibrium studies

KW - Ion exchange

KW - Zn(II)

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DO - 10.1016/j.cej.2005.07.009

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SN - 1385-8947

VL - 112

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EP - 218

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

IS - 1-3

ER -

Ion-exchange equilibria of Cu(II) and Zn(II) from aqueous solutions with Chelex 100 and Amberlite IRC 748 resins

Abstract

Keywords

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