A two-step evaporation method enables production of NaCl and MgCl2 from Karaumbet and Barsakelmes brine under industrial-like conditions.
Authors
Bakhodir Abdullayev, University of Economics and Pedagogy, Karshi, Uzbekistan; Karshi State Technical University, Karshi, Uzbekistan
Mingnikul Kurbanov, Karshi State University, Karshi, Uzbekistan
Alexey Nimchik, Almalyk Branch of Tashkent Polytechnical University named after Islam Karimov, Almalyk, Uzbekistan
Rano Toshkodirova, Almalyk Branch of Tashkent Polytechnical University named after Islam Karimov, Almalyk, Uzbekistan
Mohamed Rifky, Research Fellow, O.P Jindal Global University, Sonipat, Haryana, India; Eastern University, Chenkalady, Sri Lanka
Khakim Aliev, National University of Science and Technology (MISIS), Moscow, Russian Federation
Umida Shabarova, Karshi State Technical University, Karshi, Uzbekistan
Murodjon Samadiy, Karshi State Technical University, Karshi, Uzbekistan
Summary
This investigation into brine from two specific lakes such as Karaumbet and Barsakelmes suggests that NaCl and MgCl2 melts can be made into industrial-like conditions. A two-step evaporation method is key to this process. In the first step, evaporating to a density of 1.550 g/cm3 raises magnesium chloride concentration from 7.20 to 28.24% and drops sodium ion levels from 8.05 to 0.91%. The evaporation should continue at the first and second stages until a density of 1.340-1.345 g/cm3 is reached, which causes sodium chloride to form. Further evaporation of the remaining liquid can yield almost pure sodium chloride. After the initial evaporation phase, magnesium chloride in the brine is at 15-16%.
Published in: New Materials, Compounds and Applications
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