Experimental study on the melting temperature characteristic of the CaO-FeO-Al2O3-SiO2 slag system

被引：0
作者：
机构：
[1] School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing
[2] Central Research Institute of Building and Construction, MCC Group, Co., Ltd.
[3] Tangshan Iron and Steel Group Co. Ltd.
来源：
Liu, R.-Z. (liurunzao@metall.ustb.edu.cn) | 1600年 / University of Science and Technology Beijing卷 / 36期
关键词：
Dephosphorization; Ironmaking; Melting point; Slags;
D O I：
10.13374/j.issn1001-053x.2014.05.006
中图分类号：
学科分类号：
摘要：
Theoretical calculations by FactSage software and melting experiments were performed to systematically study the melting temperature characteristic of a CaO-FeO-Al2O3-SiO2 fluoride-free slag system used for hot metal dephosphorization pretreatment. Three influence factors of the melting temperature of the slag were researched which were the slag's binary basicity, the mass fractions of Al2O3 and FeO. The results show that the mass fraction of FeO has the greatest impact on the melting temperature of the slag among three factors. The obtained best proportion of the slag is the binary basicity of 5.5, 10% Al2O3 and 45% FeO. Under the experimental conditions, the melting temperature characteristic of the optimal slag can meet requirements for hot metal dephosphorization pretreatment.
引用
收藏
页码：603 / 607
页数：4
相关论文
共 8 条
  • [1] Xu M.X., Characteristics of oolitic hematite resources in China and its development and utilization, Sintering Pelletizing, 36, 3, (2011)
  • [2] Wei Y.J., Yuan S.Q., Zhang X.F., Et al., Experimental research of hot metal pre-treatment dephosphorizer, Steelmaking, 24, 5, (2008)
  • [3] Wang H.M., Li G.R., Li B., Effect of B<sub>2</sub>O<sub>3</sub> on melting temperature of CaO-based ladle refining slag, J Iron Steel Res Int, 17, 10, (2010)
  • [4] Peng J., Wang S.J., Liu L.X., Et al., A study on dephosphorization of hot metal pretreatment by low fluoride slag, Spec Steel, 30, 1, (2009)
  • [5] Yang F., Bi X.G., Zhou J.D., Influence of type and blending ratio of fluxing accelerating agent on high-temperature properties of dephosphorization slag in high phosphorus hot metal, J Wuhan Univ Sci Technol Nat Sci Ed, 33, 5, (2010)
  • [6] Yue K.X., Li J., Dephosphrization of hot metal with slag containing CaO-Fe<sub>2</sub>O<sub>3</sub>, J Iron Steel Res, 18, 9, (2006)
  • [7] Ji C.Q., Study on dephosphorization kinetics of high-phosphorus hot metal by CaO-SiO<sub>2</sub>-Fe<sub>t</sub>O-Na<sub>2</sub>O (Al<sub>2</sub>O<sub>3</sub>) slag, (2010)
  • [8] Gheribi A.E., Audet C., le Digabel S., Et al., Calculating optimal conditions for alloy and process design using thermodynamic and property databases, the FactSage software and the mesh adaptive direct search algorithm, Calphad, 36, (2012)
1