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Publicly Available Published by De Gruyter January 1, 2009

Treatment of Tunisian salt lakes using solubility phase diagrams

  • Najia Kbir-Ariguib , Dalila Ben Hassan Chehimi and Lotfi Zayani

Abstract

The Tunisian salt lakes are considered as an important materials resource useful for industry and agriculture. They are called sebkhat or chott, and they cover a large part of Tunisian land. Their brines correspond to the quinary system: Na+, K+, Mg2+ / Cl­, SO42­­H2O. In the first part of this paper, a short description and abstracted geochemical and economical data about some Tunisian salt lakes are given. In the second part, the fitting equations used for modeling the quinary system are established and applied to the subsystems NaCl­KCl­H2O, NaCl­MgCl2­H2O, KCl­MgCl2­H2O, and to NaCl­Na2SO4­H2 O, KCl­K2SO4­H2 O, Na2SO4­K2SO 4­H2O. The coherence between the calculated and the experimental diagrams is discussed.


Conference

IUPAC International Symposium on Solubility Phenomena (9th ISSP), International Symposium on Solubility Phenomena, ISSP, Solubility Phenomena, 9th, Hammamet, Tunisia, 2000-07-25–2000-07-28


Published Online: 2009-01-01
Published in Print: 2001-05-01

© 2013 Walter de Gruyter GmbH, Berlin/Boston

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