Effects of Catalyst and Additive Containing Li, Na, or Ca on Reduction of Iron Oxide/Carbon Composite Pellets

作     者：Xingmin Guo, Shengbi Zhang, Nianxin Fu, Xiaofeng Zhao 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 

作者机构：Univ Sci & Technol Beijing Met Sch Beijing 100083 Peoples R China Northeastern Univ Shenyang 110006 Peoples R China Anshan Iron & Steel Grp Co Anshan 114021 Peoples R China 

出 版 物：《Journal of University of Science and Technology Beijing》 (北京科技大学学报（英文版）)

年 卷 期：2001年第8卷第3期

页      面：185-188页

核心收录：

学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程] 

基　　金：the National Natural Science Foundation of China  Contract No. 59774022.] 

主　　题：iron oxide carbon reduction catalyst pellets additive 

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 degreesC. 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.