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Study of the Evaporation of a Brine Involving the System Na+, Mg2+, K+, Cl−, S 2−4 –H2O: Crystallisation of oceanic salts

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Abstract

The evaporation of a Tunisian brine sample involving the system Na+, Mg2+, K+, Cl−, S 2−4 –H2O was studied under atmospheric pressure and at ambient temperature. The selective densities of precipitation of halite (NaCl) and of co-precipitation of halite and astrakanite (Na2Mg(SO4)2·4H2O), halite and kaïnite (MgSO4·KCl·H2O) and epsomite MgSO4·7H2O were determined.

During the evaporation of the studied brine, calculations related to the hypothetical composition of the solution in terms of the simple salts NaCl, MgSO4, KCl and MgCl2.

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Authors and Affiliations

  1. Laboratoire de Génie des Procédés, Institut National de Recherche Scientifique et Technique, B.P. 95, Hammam-Lif, 2050

    L. Zayani & R. Rokbani

  2. Laboratoire de Physico-chimie Minérale, Faculté des Sciences de Bizerte, 7021, Zarzouna-Bizerte, Tunisia

    M. Trablesi-Ayedi

Authors
  1. L. Zayani
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  2. R. Rokbani
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  3. M. Trablesi-Ayedi
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Zayani, L., Rokbani, R. & Trablesi-Ayedi, M. Study of the Evaporation of a Brine Involving the System Na+, Mg2+, K+, Cl−, S 2−4 –H2O: Crystallisation of oceanic salts. Journal of Thermal Analysis and Calorimetry 57, 575–585 (1999). https://doi.org/10.1023/A:1010192714395

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  • DOI: https://doi.org/10.1023/A:1010192714395

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