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J. Phys. IV France
Volume 11, Number PR10, Décembre 2001
Journées d'Étude des Équilibres entre Phases
Page(s) Pr10-157 - Pr10-163
Journées d'Étude des Équilibres entre Phases

J. Phys. IV France 11 (2001) Pr10-157-Pr10-163

DOI: 10.1051/jp4:20011024

Cristallisation polytherme de l'epsomite à partir d'une saumure naturelle. Application du système : Na+, K+, Mg2+/Cl-, SO42-//H2O

H. Hammi, M'nif and R. Rokbani

Laboratoire des Procédés Chimiques, INRST, BP. 95, 2050 Hamman-Lif, Tunisia

Sebkha El Melah Natural Brine is a complex high concentrated aqueous solution. To study this kind of saline solutions many authors assimilate them to a quinary system represented by Na+, K+, Mg2+/Cl-, SO42-//H2O. In the case of Sebkha El Melah brine, magnesium and sulfate ions seems to be sufficiently high to recover Epsomite (MgSO4.7H2O). The aim of this work is firstly to apply the above mentioned diagram allowing the production of the considered salt, calculate the recovery rates and secondly to test the conceived process at the laboratory scale.

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