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过程工程学报 ›› 2017, Vol. 17 ›› Issue (2): 357-361.DOI: 10.12034/j.issn.1009-606X.216274

• 过程与工艺 • 上一篇    下一篇

La2O3-SiO2-Al2O3渣系的熔化温度及其影响因素

邓永春1，2，吴胜利1，姜银举2*，崔萌萌2，刘 聪2   

  1. 1. 北京科技大学冶金与生态工程学院，北京 100083；
    2. 内蒙古科技大学材料与冶金学院，内蒙古 包头 014010
  • 收稿日期:2016-08-10 修回日期:2016-10-27 出版日期:2017-04-20 发布日期:2017-04-19
  • 通讯作者: 姜银举 dychun@imust.cn

 
Melting Temperature and Its Effect Factors of La2O3–SiO2–Al2O3-based Slag

  DENG Yong-chun1,2,  WU Sheng-li1,  JIANG Yin-ju2*,  CUI Meng-meng2,  LIU Cong2   

  1. 1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;
    2. School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014010, China
  • Received:2016-08-10 Revised:2016-10-27 Online:2017-04-20 Published:2017-04-19
  • Contact: JIANG Yin-ju dychun@imust.cn

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摘要： 以La2O3-SiO2-Al2O3为基础渣系，采用半球法对设定区域的熔化温度进行了研究. 结果表明，3种La2O3含量(45%, 50%, 55%)下，SiO2/Al2O3质量比约为2时渣样的熔化温度最低；少量FeO, B2O3和MnO均可降低渣系的熔化温度，B2O3的效果尤为显著，同时添加少量FeO和B2O3对降低渣系熔化温度有叠加效应. 65%La2O3-16%SiO2-8%Al2O3-7%FeO-4%B2O3渣的熔化温度为1319℃，65%La2O3-19.3%SiO2-9.7%Al2O3-2%FeO-4%B2O3渣的熔化温度为1386℃.

关键词: La2O3-SiO2-Al2O3渣系, 熔化温度

Abstract: La2O3–SiO2–Al2O3 was selected as the basic slag system, a hemispherical method was used to study the melting temperature of specified areas. The results showed that, for different La2O3 mass contents (45%, 50% and 55%) in the La2O3–SiO2–Al2O3 slag, the melting temperature was the lowest when the SiO2/Al2O3 mass ratio was about 2. A small amount of the minor component, FeO, B2O3 and MnO could lower the La2O3–SiO2–Al2O3-based slag melting temperature, the effect of B2O3 was particularly significant. The addition of a small amount of FeO and B2O3 has an additive effect on decreasing the slag melting temperature. The melting temperatures of slags 65%La2O3–16%SiO2–8%Al2O3–7%FeO–4%B2O3 and 65%La2O3–19.3%SiO2–9.7%Al2O3–2%FeO–4%B2O3 were 1319 and 1386℃, respectively.

Key words: La2O3–SiO2–Al2O3-based slag, melting temperature

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