Research on Activities of CaO-SiO2-B2O3 (Al2O3, Fe2O3) Slag System

Hong Ming Wang; Gui Rong Li; Xiang Zhu; Yu Tao Zhao

doi:10.4028/www.scientific.net/AMM.217-219.492

Paper Titles

A Study on Recrystallization Behavior of Low Carbon Bainitic Steel during Multi-Pass Deformation
p.471

Calculation of Carbon Diffusion Coefficient in Spheroidal Graphite Cast Iron
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Effects of Sintering Conditions on Properties of a Warm Compacted Stainless Steel Powder
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Micromechanical Modelling for Bauschinger Effect of Dual Phase Steel
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Research on Activities of CaO-SiO₂-B₂O₃ (Al₂O₃, Fe₂O₃) Slag System
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Study on Corrosion Behaviors of the PTA Plant in Halogen
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EBSD Investigation on the Primary Recrystallization in Warm Rolled Ti-IF Steel
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GAP-Like Scheduling Model of Byproduct Gas in Iron and Steel Process
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Effects of B₂O₃ and CaF₂ on Melting Properties of CaO-Based Slags
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 217-219Research on Activities of CaO-SiO2-B2O3 (Al2O3,...

Research on Activities of CaO-SiO₂-B₂O₃ (Al₂O₃, Fe₂O₃) Slag System

Abstract:

A mathematical model on activities of CaO-based slag system has been established on the bases of ion-molecule coexistence theory of melted slag structure. The activities of CaO-SiO2-B2O3 (Al2O3, Fe2O3) systems are calculated. The effects of the content of B2O3, Al2O3 and Fe2O3 on activities are analyzed. The results indicate that the activities of CaO and 2CaO•SiO2 are decreased with the increases of B2O3, Al2O3 and Fe2O3. The effect of B2O3 is most remarkable. Moreover, the activity of CaO•SiO2 can be enhanced with increasing the contents of B2O3, Al2O3 and Fe2O3 respectively. These effects of Al2O3 and Fe2O3 are very similar, whereas the effect of B2O3 is most significant. As a conclusion, B2O3 is most effective to inhibit the formation of 2CaO•SiO2 as well as to promote the dissolution of lime.