Xingmin Guo, Shengbi Zhang, Nianxin Fu, and Xiaofeng Zhao, Effects of Catalyst and Additive Containing Li, Na, or Ca on Reduction of Iron Oxide/Carbon Composite Pellets, J. Univ. Sci. Technol. Beijing, 8(2001), No. 3, pp. 185-188.
Cite this article as:
Xingmin Guo, Shengbi Zhang, Nianxin Fu, and Xiaofeng Zhao, Effects of Catalyst and Additive Containing Li, Na, or Ca on Reduction of Iron Oxide/Carbon Composite Pellets, J. Univ. Sci. Technol. Beijing, 8(2001), No. 3, pp. 185-188.
Xingmin Guo, Shengbi Zhang, Nianxin Fu, and Xiaofeng Zhao, Effects of Catalyst and Additive Containing Li, Na, or Ca on Reduction of Iron Oxide/Carbon Composite Pellets, J. Univ. Sci. Technol. Beijing, 8(2001), No. 3, pp. 185-188.
Citation:
Xingmin Guo, Shengbi Zhang, Nianxin Fu, and Xiaofeng Zhao, Effects of Catalyst and Additive Containing Li, Na, or Ca on Reduction of Iron Oxide/Carbon Composite Pellets, J. Univ. Sci. Technol. Beijing, 8(2001), No. 3, pp. 185-188.
Metallurgy School, University of Science and Technology Beijing, Beijing 100083, China
Northeastern University, Shenyang 110006, China
Anshan Iron and Steel (Group) Company, Anshan 114021, China
中文摘要
The catalyst containing 0.69% (mass fraction) of Li+, Na+, or Ca2+ were synthesized, and the catalytic effect on the reduction of iron oxide/carbon composite pellets were investigated by comparing with that of additive at 850 ℃. The effect of the catalyst was greater than that of the additive, it can be considered that catalyst promoted the formation of iron nucleus early on reduction processes of iron oxide/carbon composite pellets. In addition, both effects of catalyst and additive increased after added carbon powder into the pellets, but the extent of increase decreased when the carbon powder exceeded a suitable content (about 4%), this amount is less than that of carbon needed theoretically on the reduction from hematite to iron.
The catalyst containing 0.69% (mass fraction) of Li+, Na+, or Ca2+ were synthesized, and the catalytic effect on the reduction of iron oxide/carbon composite pellets were investigated by comparing with that of additive at 850 ℃. The effect of the catalyst was greater than that of the additive, it can be considered that catalyst promoted the formation of iron nucleus early on reduction processes of iron oxide/carbon composite pellets. In addition, both effects of catalyst and additive increased after added carbon powder into the pellets, but the extent of increase decreased when the carbon powder exceeded a suitable content (about 4%), this amount is less than that of carbon needed theoretically on the reduction from hematite to iron.
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