Journal ArticleDOI
The characterization of binary and ternary ion exchange equilibria
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TLDR
In this article, the Debye-Huckel relationship for solution phase activity coefficients and the Wilson equation for the resin phase were used to characterize binary ion exchange equilibria.About:
This article is published in Chemical Engineering Journal.The article was published on 1989-04-01. It has received 33 citations till now. The article focuses on the topics: Binary system & Ternary operation.read more
Citations
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Heavy metal removal by clinoptilolite. An equilibrium study in multi-component systems.
R. Petrus,Jolanta Warchoł +1 more
TL;DR: The results show that the equilibrium model based on the law of mass action, which considers nonideal behavior of both phases, allows one to achieve the best approach to the real multi-component equilibrium data in all studied systems.
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Ammonia Removal from Wastewaters Using Natural Australian Zeolite. I. Characterization of the Zeolite
TL;DR: In this article, the potential of a natural Australian zeolite, clinoptilolite to remove ammonium from water was investigated, using pure solutions, to investigate the equilibria and kinetic characteristics of ammonium exchange in the zeolisite Binary equilibrium experiments provided information on the adsorption characteristics of the zeolites in terms of ammonia capacity at varying solution concentrations.
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Ion exchange equilibria between clinoptilolite and aqueous solutions of Na+/Cu2+, Na+/Cd2+ and Na+/Pb2+
R. Petrus,Jolanta Warchoł +1 more
TL;DR: In this paper, three different types of equations were used to predict experimental data: Freundlich, Langmuir and the thermodynamic equilibrium models, and the last one was applied taking into account the following factors: (i) concentration of ions in solution and zeolite phase, (ii) activity of ion in solution, (iii) concentration in zerosolite, and (iv) ion activity in both phases.
Journal ArticleDOI
Prediction of multicomponent ion exchange equilibria
TL;DR: In this article, a model was developed for the prediction of multicomponent ion exchange equilibria which used equilibrium data from binary systems to predict behavior in multicomponents systems and applied to cation exchange in the binary and ternary systems involving H+, Na+, K+ and Ca2+ ions.
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Nickel(II) and zinc(II) removal using Amberlite IR-120 resin: Ion exchange equilibrium and kinetics
Pietro Escobar Franco,Márcia Teresinha Veit,Carlos Eduardo Borba,Gilberto da Cunha Gonçalves,Márcia Regina Fagundes-Klen,Rosangela Bergamasco,Edson Antonio da Silva,Pedro Yahico Ramos Suzaki +7 more
TL;DR: In this paper, experimental data was obtained on ion exchange equilibrium for the binary systems Ni2+/Na+ and Zn2+ /Na+ using Amberlite IR 120 resin in closed batch system at 25°C and starting pH of 4.5.
References
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Journal ArticleDOI
Vapor-Liquid Equilibrium. XI. A New Expression for the Excess Free Energy of Mixing
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Prediction of multicomponent ion exchange equilibria for the ternary system SO-NO-Cl from data of binary systems
TL;DR: In this paper, a framework is developed which provides predictions of multicomponent ion exchange equilibria from binary data, based on the reaction equilibrium constants and correlations for the activity coefficients in both phases.
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Multicomponent Ion Exchange in Fixed Beds. General Properties of Equilibrium Systems
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An improved model for the prediction of multicomponent ion exchange equilibria
TL;DR: In this article, a semi-theoretical model is proposed in which the Pitzer approach is applied to the solution nonidealities, and the Wilson approach, based on experimental binary data, is applied for the resin.
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Prediction of Ion-Exchange Equilibria in Aqueous Systems with More than Two Counter-Ions
A. M. Elprince,K. L. Babcock +1 more
TL;DR: The successful fitting of the Wilson equation to solid phase activity coefficients for binary aqueous systems makes possible the construction of three-component graphs for the ternary systems as discussed by the authors.