| Title |
Pyrometallurgy : Desulfurization Reaction with MgO Saturated CaO-SiO2-Al2O3-CaF2 slag |
| Authors |
심상철(Sang Chul Shim),이계영(Kae Young Lee),김기성(Ki Sung Kim) |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Abstract |
In order to produce low sulfur steel, an optimum ladle slag composition was investigated as a function of CaO/Al_2O_3 (mass%) ratio and (T.Fe+MnO) content of the ladle slag. The effects of CaF_2 addition and ladle slag recycling on the desulfurization rate were also studied. An optimum value of CaO/Al_2O_3 ratio for desulfurization was 1.6∼1.7 and desulfurization reaction was enhanced when T.Fe + MnO was less than 1 mass%. The desulfurization rate constant (K) increase by the increase in the CaO/Al_2O_3 (mass%/mass%) ratio until 1.7 and it decrease afterward. However, desulfurization rate constant (K) did not show decreasing trend over 1.7 (CaO/Al_2O_3 ratio) when recycled ladle slag or CaF_2 was added. |