Research on the Melting Temperature of CaO-SiO2-B2O3 Ternary Slag Systems

Li Li Yang; Hong Ming Wang; Xiang Zhu; Gui Rong Li

doi:10.4028/www.scientific.net/KEM.575-576.370

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 575-576Research on the Melting Temperature of...

Research on the Melting Temperature of CaO-SiO₂-B₂O₃ Ternary Slag Systems

Abstract:

The melting temperature of CaO-SiO₂-B₂O₃-(boron mud, CaF₂) slag system was investigated. The slag melting temperature was measured by using the hemisphere method. The results indicate that B₂O₃ has a significant fluxing effect on the slag system. When 1%-11% B₂O₃ was employed as fluxing agent, the melting temperature of the slag changed from 1525°C to 1200°C. When the content of B₂O₃ is 5% and the range of basicity is 1.5~3.5, the melting temperature of the slag increases with the increase of the basicity. However, when boron mud or CaF₂ was added to the slag, the melting temperature of the slags decreased with the increase of addition at a fixed B₂O₃ content (5%) and a fixed basicity (R=2.5). Furthermore, the melting temperature of the slag system which contains CaF₂ is lower than the slag system which contains boron mud.

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Periodical:

Key Engineering Materials (Volumes 575-576)

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370-373

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.575-576.370

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Online since:

September 2013

Authors:

Li Li Yang, Hong Ming Wang, Xiang Zhu, Gui Rong Li

Keywords:

Boron Mud, Boron Oxide, Calcium Fluoride, Melting Temperature

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