Research on the Melting and Fluidity Characteristics of Ce2O3 Contained Refining Slag for Steelmaking

摘要：

　　It has been showed in a previous research that activity of Al2O3 decreased with the addition of Ce2O3.Based on this finding,quaternary refining slags containing Ce2O3 were designed in present work.Effect of ceria on melting temperature and viscosity of these refining slags was also examined.Quaternary refining slags containing Ce2O3 were prepared in a vacuum carbon tube furnace in this research.Phase detection of slags was achieved with X-ray diffraction analysis.Melting temperatures and viscosities were measured with a melting point detector and a viscometer type (model RTW-10),respectively.Results showed that cerium was stable in +3 state in refining slags.Melting temperatures and viscosities of the CaO-Al2O3-Ce2O3-SiO2 refining slags were measured in the range of 1348~1361℃and 0.289~0.497 Pa? s(1500℃),respectively.The 46%CaO-38%Al2O3-5%Ce2O3-10%SiO2 slag showed good melting and fluidity properties.Therefore,good melting and fluidity characteristics of refining slag can be achieved with the appropriate addition of Ce2O3.

关键词： Ce2O3 contained refining slag XRD analysis melting temperature viscosity

作者: Wu Chengchuan Cheng Guoguang Long Hu

作者单位: State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing,Beijing 100083,China;School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China

会议类型: 国际会议

会议名称: Asia Steel International conference 2012(第五届亚洲钢铁大会)

会议地点: 北京

会议语种:英文

页码: 1-5

在线出版日期: 2012-09-23（万方平台首次上网日期，不代表论文的发表时间）