硅铁
冶炼
熔渣(焊接)
镁
冶金
氧化物
氧化钙
材料科学
化学
合金
作者
Qifeng Tang,Jiacheng Gao,Xiaohua Chen,Xiaowei Wei
标识
DOI:10.3989/revmetalm.065
摘要
The smelting reduction of magnesium oxide was researched in this paper.The effect of molten slag composition and reduction temperature on percent reduction of magnesium oxide were discussed, and kinetics of smelting reduction of magnesium oxide in molten slag was studied.The results showed that the reduction extent of magnesium oxide increased by increasing either one of the following factors: the initial mass ratio of Al 2 O 3 /SiO 2 , the addition of CaF 2 , the initial molar ratio of Si/2MgO, and reaction temperature.The overall smelting reduction was controlled by mass transfer in slag with an apparent activation energy 586 kJ mol -1 .
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