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Study on Viscosity of the La2O3-SiO2-Al2O3 Slag System

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Abstract

The viscosities and free-running temperatures of slag in a La2O3-SiO2-Al2O3 slag system were measured using an internal rotating cylinder method. For different La2O3 mass contents (45, 50, and 55 pct) in the La2O3-SiO2-Al2O3 ternary slag, the slag viscosity and free-running temperature decreased with a decrease in SiO2 content and an increase in Al2O3 content, and decreased with an increase in La2O3 content. Minor components B2O3, FeO, and MnO could decrease the viscosity and free-running temperature of La2O3-SiO2-Al2O3 ternary slag, especially FeO, and a small amount of FeO and B2O3 had an additive effect on slag viscosity and free-running temperature reduction.

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Acknowledgments

The authors acknowledge financial support from the National Nature Science Foundation of China (No. 51364029) and Talent Incubation Funding of the School of Materials and Metallurgy of the Inner Mongolia University of Science and Technology (No. 2014CY012).

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Authors and Affiliations

  1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, China

    Yong-chun Deng (Lecturer) & Sheng-li Wu (Professor)

  2. School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Inner Mongolia, Baotou, 014010, China

    Yong-chun Deng (Lecturer), Yin-ju Jiang (Professor) & Su-qi Jia (Master Student)

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  1. Yong-chun Deng
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  2. Sheng-li Wu
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  3. Yin-ju Jiang
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Correspondence to Yin-ju Jiang.

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Manuscript submitted December 25, 2015

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Deng, Yc., Wu, Sl., Jiang, Yj. et al. Study on Viscosity of the La2O3-SiO2-Al2O3 Slag System. Metall Mater Trans B 47, 2433–2439 (2016). https://doi.org/10.1007/s11663-016-0711-0

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