OBTAINING MAGNESIUM CHLORIDE BY AN ISOTHERMAL METHOD AT 25 ºC BASED ON THE SYSTEM 2NA+ , MG2+SO4 2– 2CI––H2O FROM SALT WATER CONTAINING MAGNESIUM

The study examines the isothermal production of magnesium chloride at25°C in the quaternary system 2Na⁺, Mg²⁺ // 2Cl⁻, SO₄²⁻ – H₂O using natural brinesfrom saline lakes of the Bukhara region. The brines contain significant amounts ofsodium and magnesium chlorides and sulfates. Phase equilibrium and solubility ofNa₂SO₄, MgCl₂, NaCl, and MgSO₄ were investigated. The exchange reaction between NaCl and MgSO₄ leading to the formation of Na₂SO₄ and MgCl₂ was confirmed. Crystallization fields of the main solid phases were determined. The resultsprovide a scientific basis for technological processing and magnesium chloride extraction from saline waters.

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