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E-Journal of Chemistry
Volume 7 (2010), Issue 2, Pages 483-495

Separation of Ethanol-Water MixtureUsing Type-A Zeolite Molecular Sieve

Juan Camilo Díaz,1 Iván Darío Gil-Chávez,1 Liliana Giraldo,2 and Juan Carlos Moreno-Piraján3

1Departamento de Ingeniería Química, Facultad de Ingeniería, Universidad de los Andes, Bogotá, Colombia
2Facultad de Ciencias, Departamento de Química, Universidad Nacional de Colombia, Colombia
3Facultad de Ciencias, Departamento de Química, Grupo de Investigación en Sólidos Porosos y Calorimetría, Universidad de Los Andes, Bogotá, Colombia

Received 3 June 2009; Accepted 1 August 2009

Copyright © 2010 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper presents an experimental procedure for the synthesis of a type-A zeolite molecular sieve, usable in the separation of an ethanol-water mixture. The type-A zeolite molecular sieve is obtained from a reactive mixture formed by a source of alumina, a source of silica and a promoter. Characterization of the molecular sieves obtained in this work was undertaken using X-ray diffraction (XRD), adsorption isotherms and scanning electron microscopy (SEM). The results from the characterization procedures showed that part of the product presented a pore diameter suitable for the separation of an ethanol-water mixture.