| Title |
Study on MgO Solubility Content in CaO - SiO2 - FetO - MnO ( 〉8wt% ) - MgO - P2O5 Slag in contact with Molten Iron and its Application |
| Authors |
박종민(Jong Min Park); 손재웅(Jae Woong Son); 조만형(Man Hyung Dzo) |
| Abstract |
The MgO solubility is measured in the CaO-SiO₂- Fe_tO-MnO($gt;8wt%)-MgO-P₂O_5 slag system which is in equilibrium with molten iron in the temperature range of 1550˚C. The Effect of MnO on the MgO solubility and the method for calculating the MgO solubility using slag composition and temperature and discussed, respectively. The amount of MnO content itself has an effect to raise the same amount of Fe_tO content in basic slag. On the other hand, in acidic slag MnO has an effect to raise basicity. Moreover, above results are applied to real low slag operation of 250ton LD converter to study the relationship between MgO solubility and the erosion of MgO-C refractory. The MgO solubility is in the range of 5 to 5.5 wt% at blow end of low slag operation. |