一氧化碳还原硫酸镁制备氧化镁的工艺研究

Abstract

Abstract: The possibility of preparation of magnesia by carbon monoxide reduction of anhydrous magnesium sulfate was thermodynamically calculated and analyzed.Effects of the reaction temperature，heating time，and diameter of particles on the decomposition rate of anhydrous magnesium sulfate were investigated.Moreover，the optimum technological conditions of preparation of magnesia were obtained by orthogonal experiments as follows：reaction temperature was 973.15 K，heating time was 30 min，and diameter of particles was 106 μm.Under those conditions the decomposition rate of anhydrous magnesium sulfate reached 99.3%.The as-prepared MgO was single phase and had a porous appearance，which can be classified as the superior product of type I according to the state standard of industrial light magnesium oxide HG/T 2573—2006.

Key words: magnesium sulfate, carbon monoxide, magnesium oxide, reduction

CLC Number:

TQ132.2

SUN Chong, CHEN Xue-An, CHANG Xin-An, XIAO Wei-Qiang, WANG Shao-Hua. Study on preparation of magnesia from anhydrous magnesium sulfate reduced by carbon monoxide[J]. INORGANICCHEMICALSINDUSTRY, 2013, 45(1): 14-.

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Study on preparation of magnesia from anhydrous magnesium sulfate reduced by carbon monoxide

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