Investigation of Processing of Brine of Lake Karaumbet and Barsakelmes for Magnesium Hydroxide

The results of studies on the processing brine from lakes Karaumbet and Barsakelmes for magnesium hydroxide sodium calcium solutions purified by distillation liquid, carbonate, barium chloride are presented. Desulfation wound with distiller’s liquid was carried out at a CaO rate 100% sulfate ions. Excess precipitated additional purification ions 95-98% stoichiometry. As result, residual content did not exceed 0.07 % or 0.010 in terms sulfate. optimal technological norms process were established - norm hydroxides is 100-105% stoichiometry, temperature 25°C, duration 120 minutes. At same time, filtration solution 725.21 kg/m 2 ·h, dry residue 75.80 ·h. optimum stage 50–60°C, which degree precipitation 97.11–99.41%. separation solid phases centrifugation proceeds quite quickly first 6 minutes 91.86% initial amount, after 10 95.66%, 15 97.15. S:L time changes 1:8 to 1:2 1:1, respectively.