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Cis/trans-but-2-ene adsorption on natural and modified clinoptilolite

Published online by Cambridge University Press:  09 July 2018

H. Faghihian  and
M. Pirouzi
H. Faghihian*
Affiliation:
Department of Chemistry, University of Isfahan, I.R. Iran 81746-73441
M. Pirouzi
Affiliation:
Department of Chemistry, University of Isfahan, I.R. Iran 81746-73441
*
*E-mail: h.faghihian@sci.ui.ac.ir
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Abstract

Adsorption of cis-2-butene and trans-2-butene on clinoptilolite-rich tuff and ion-exchanged forms was investigated. Clinoptilolite samples were characterized by X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, chemical analysis and nitrogen adsorption techniques. Adsorption isotherms for cis and trans 2-butene on purified clinoptilolite (Cp) and modified forms (Na-Cp, K-Cp, Ca-Cp and Mg-Cp) were obtained at pressures up to 2.7 atm. and at 25ºC. The results show that natural clinoptilolite has a considerable potential for separation of the two hydrocarbons. Mg-Cp samples showed maximal uptake of both cis-2-butene and trans-2-butene.

Keywords

clinoptiloliteadsorptioncis-2-butenetrans-2-butene
Type
Research Article
Information
Clay Minerals , Volume 44 , Issue 3 , September 2009 , pp. 405 - 409
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2009

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