|
Vol.52, No.11, 909 ~ 917, 2014
|
| Title |
| Review Paper : Effect of Al2O3 on the Solubility of MgO in BOF Slag System |
| 김주훈 Ju Hun Kim , 홍성훈 Seong Hun Hong , 주성웅 Seong Woong Joo , 신진욱 Jin Wook Shin , 김대현 Dae Hyun Kim , 최현수 Hyun Soo Choi , 하창수 Chang Soo Ha , 유병돈 Byung Don You |
|
|
|
| Abstract |
| 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 ℃. 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. (Received January 13, 2014) |
|
|
| Key Words |
| oxides, recycling, melting, X-ray diffraction, slag, MgO solubility |
|
|
 |
|
