La2O3-SiO2-Al2O3渣系的熔化温度及其影响因素

邓永春 吴胜利 姜银举 崔萌萌 刘聪

doi:10.12034/j.issn.1009-606X.216274

过程工程学报 >

2017 , Vol. 17 >Issue 2: 357 - 361

DOI: https://doi.org/10.12034/j.issn.1009-606X.216274

过程与工艺

La₂O₃-SiO₂-Al₂O₃渣系的熔化温度及其影响因素

邓永春吴胜利姜银举崔萌萌刘聪

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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

网络出版日期: 2017-04-19

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

DENG Yong-chun WU Sheng-li JIANG Yin-ju CUI Meng-meng LIU Cong

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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 date: 2016-08-10

Revised date: 2016-10-27

Online published: 2017-04-19

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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

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邓永春吴胜利姜银举崔萌萌刘聪 . La₂O₃-SiO₂-Al₂O₃渣系的熔化温度及其影响因素[J]. 过程工程学报, 2017 , 17(2) : 357 -361 . DOI: 10.12034/j.issn.1009-606X.216274

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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