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

Metallurgical and Materials Transactions B - Tập 47 - Trang 2433-2439 - 2016
Yong-chun Deng1,2, Sheng-li Wu1, Yin-ju Jiang2, Su-qi Jia2
1School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, China
2School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, China

Tóm tắt

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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