Question

how to prepare magnesium oxide​

Answer 1

magnesium+oxygen=magnesiumoxide

Answer 2

hey mate,,

here is you answer..

Answer:

# PREPARATION OF MAGNESIUM OXIDE (MgO) FROM DOLOMITE BY LEACH-PRECIPITATION-PYROHYDROLYSIS PROCESS .

Magnesium oxide suitable for the use in basic refractories was prepared from dolomite (CaMg(CO3)2) by hydrochloric acid leaching, precipitation with CO2 and thermal hydrolysis. Leaching of the dolomite ore in aqueous hydrochloric acid solution was investigated with respect to the effects of time on dissolution of the dolomite sample. The dependence of the observed dissolution rate on pH was established. In the carbonation experiments changes in pH, Ca2+ and Mg2+ concentrations versus time in the effluent solution were determined. Effects of the temperature on the precipitation rate of Ca2+ ions as solid CaCO3  were studied. Experiments were conducted to determine the kinetics of thermal decomposition of MgCl2.6H2O during pyrohydrolysis process. From high purity magnesium chloride brine magnesium oxide containing 98.86 % MgO was obtained with the thermal decomposition recovery of 98.10 %.

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