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Industrial Boiler Desulfurization and Denitrification
Desulfurization principle: The desulfurization principle of magnesium oxide is similar to that of calcium oxide. Both of them are alkaline oxides reacting with water to form hydroxides, which then undergo an acid-base comprehensive reaction with sulfurous acid solution generated by sulfur dioxide dissolved in water. The magnesium sulfite and magnesium sulfate generated by the reaction of magnesium oxide are then recycled after SO2 is recovered, or they are forced to be oxidized and converted into sulfates to make magnesium sulfate heptahydrate.
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