Effect of Al2O3 on the Solubility of MgO in BOF Slag System

被引：4
|
作者：
Kim, Ju Hun [1 ]
Hong, Seong Hun [2 ]
Joo, Seong Woong [1 ]
Shin, Jin Wook [1 ]
Kim, Dae Hyun [1 ]
Choi, Hyun Soo [3 ]
Ha, Chang Soo [3 ]
You, Byung Don [1 ]
机构：
[1] Inha Univ, Div Mat Sci & Engn, Inchon 402751, South Korea
[2] POSCO E&C, Tech Res Labs, Pohang 790785, South Korea
[3] POSCO, Tech Res Labs, Pohang 790785, South Korea
来源：
KOREAN JOURNAL OF METALS AND MATERIALS | 2014年 / 52卷 / 11期
关键词：
oxides; recycling; melting; X-ray diffraction; slag; MgO solubility; LIQUID-IRON; PHOSPHORUS DISTRIBUTION; EQUILIBRIUM;
D O I：
10.3365/KJMM.2014.52.11.909
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In order to investigate the feasibility of use of DRI containing a large quantity of Al2O3 in BOF steelmaking process, the solubility of MgO in BOF slag system with the Al2O3 content was studied in the temperature range of 1550 to 1650 degrees C. The saturation content of MgO in the BOF slag increases linearly with the increase of the Al2O3 content due to the complex ionization of Al2O3. The MgO solubility in the slag decreases with in increase of the slag basicity and FetO content, and increases with an increase in the temperature. The effect of MnO on the MgO solubility in the slag was negligible, and MnO had a dilution effect on the slag composition due to the increase in slag volume. An index of slag composition for MgO solubility was derived by a regression analysis. An empirical equation was derived for the saturation content of MgO in slag as a fuction of the slag composition index and the temperature.
引用
收藏
页码：909 / 916
页数：8
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