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Erschienen in:
01.02.2020 | Applications and Engineering
Corrosion Mechanisms of Different Refractory Aggregates in Contact with SiO2-MgO-Based Slag
Erschienen in: Interceram - International Ceramic Review | Ausgabe 1/2020
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Abstract
Abstract: To improve the utilization and evaluation of metallurgical solid waste, the investigation of slag has become a focused research subject in the recent years. However, when slag with various compositions was smelted to produce high value-added products in the slag furnace, the SiO2-MgO based slag caused serious damage to the refractory lining material of the furnace compared to the common CaO-Al2O3-SiO2 based slag. The tabular alumina, lightweight alumina, silicon carbide, mullite and brown fused alumina aggregates were selected for testing. The static crucible method was used to investigate the SiO2-MgO based slag corrosion and comparative analysis was performed. The results show that mullite-silicon carbide or tabular alumina-silicon carbide refractories are promising for the use as lining materials of SiO2-MgO slag smelting furnaces.