Reduction behavior of the mixture of iron ore and carbonaceous material at high temperatures

被引:0
|
作者
Yamamoto, T [1 ]
Sawa, Y [1 ]
Takeda, K [1 ]
机构
[1] Kawasaki Steel Corp, Tech Res Labs, Kurashiki, Okayama 7128511, Japan
来源
TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN | 2001年 / 87卷 / 12期
关键词
direct reduction; ironmaking; iron ore/carbon composite; gaseous reduction; coal char gasification;
D O I
10.2355/tetsutohagane1955.87.12_734
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
Reduction and gasification rates of mixtures of fine iron ore and coal char were measured for some types of coal char and ore at temperature from 940 degreesC to 1340 degreesC. Experiments A ore carried out with an electric furnace by measuring A eight losses of samples and gas composition during, reaction. The reduction rates were obtained by separating the A eight loss of the fine iron ore reduction from that of the coal char gasification. The overall reduction rate of the mixture was controlled by the coal char gasification at 940 degreesC and by the iron ore reduction at 1340 degreesC. The reduction rate of fine iron ore and the gasification rate of coal char Acre formulated as functions of the particle size, type of raw material, and temperature.
引用
收藏
页码:734 / 740
页数:7
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