Study of the evaporation of Tunisian brine (Chott El Jerid) comparison between the sequences of crystallization experimental and theoretical

摘要

The evaporation of a Tunisian brine sample involving the system Na~+, K~+, Mg~(2+)/ Cl~- SO_4~(2-)-H_2O was studied under atmospheric pressure and at temperature room equal to 298 K. The selective densities of precipitation of halite (NaCl) and the co-precipitation of halite and sylvinite (KCl), and the co-precipitation of halite sylvinite and epsomite (MgSO_4.7H_2O), were determined. The sequence of crystallization determined experimentally has been compared with the theoretically sequence.