Reduction Kinetics of Electric Arc Furnace Oxidizing Slag by Al-Fe Alloy

被引:0
作者
Jaehong Lee
Joon Seok Oh
Joonho Lee
机构
[1] Korea University,Department of Materials Science and Engineering
来源
JOM | 2016年 / 68卷
关键词
Molten Slag; Reduction Degree; Slag Basicity; Cement Clinker; Interfacial Instability;
D O I
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中图分类号
学科分类号
摘要
Effects of temperature and slag basicity on the reduction rate of iron oxide in molten synthetic electric arc furnace oxidizing slag by Al-40 wt.%Fe alloy was investigated. An alloy sample was dropped into molten slag in an MgO crucible. When the initial slag temperature was 1723 K, there was no reduction. However, when the initial slag temperature was 1773 K and the slag basicity was 1.1, the reduction was initiated and the temperature of the slag rapidly increased. When the slag basicity was 1.1, increasing the initial slag temperature from 1773 K to 1823 K increases the reaction rate. As the slag basicity increased from 1.1 to 1.4 at 1773 K, the reaction rate increased. From SEM analysis, it was found that an Al2O3 or a spinel phase at the slag-metal interface inhibited the reaction at a lower temperature and a lower slag basicity.
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页码:2359 / 2364
页数:5
相关论文
共 62 条
[1]  
Liapis I(2015)undefined J. Hazardous Mater. 283 89-undefined
[2]  
Papayianni I(2012)undefined Chem. Eng. J. 203 239-undefined
[3]  
Santos RM(2014)undefined Environ. Sci. Technol. 48 1886-undefined
[4]  
Ling D(2013)undefined Environ. Sci. Technol. 47 549-undefined
[5]  
Sarvaramini A(2010)undefined Steel Res. Int. 81 362-undefined
[6]  
Guo M(2014)undefined Korean J. Met. Mater. 52 791-undefined
[7]  
Elsen J(2002)undefined J. Mater. Cycles Waste Manag. 4 93-undefined
[8]  
Larachi F(2011)undefined Mater. Trans. 52 2233-undefined
[9]  
Beaudoin G(2012)undefined Ironmaking Steelmaking 39 498-undefined
[10]  
Blanpain B(2014)undefined Met. Mater. Int. 2 351-undefined