The Online Research of [B.sub.2][O.sub.3] on Crystal Behavior of High Ti-Bearing Blast Furnace Slag

The existence and phase structures of high Ti-bearing blast furnace slag at a high temperature are the key issue to flow performance and reaction temperature. It is essential to evaluate the physical-chemical properties, such as viscosity and melting point in this work, a new method of online resear...

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Bibliographic Details
Published in:Journal of chemistry 2019-11, Vol.2019
Main Authors: Lin, Yin-He, Zheng, Bin, Luo, Lin-Gen, Jia, Yu-Long, Zhang, Li-Qiang
Format: Article
Language:English
Subjects:
Chemical properties
Information services
Online information services
Online services
Perovskite
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Summary:The existence and phase structures of high Ti-bearing blast furnace slag at a high temperature are the key issue to flow performance and reaction temperature. It is essential to evaluate the physical-chemical properties, such as viscosity and melting point in this work, a new method of online research of [B.sub.2][O.sub.3] on crystal behavior of high Ti-bearing blast furnace slag is proposed. By ultrahightemperature confocal laser scanning microscope and area scanning analysis, it can be concluded that the effect of [B.sub.2][O.sub.3] additives on the viscosity has a more obvious effect among the low-temperature region of the slag. Compared to the samples without [B.sub.2][O.sub.3] additives, the liquid phase of Ti-bearing slag with [B.sub.2][O.sub.3] additives appears earlier at the same experimental temperature, and the solid particles floating on the surface of liquid slag become less. Moreover, the [B.sub.2][O.sub.3] additives can promote the migration of titanium elements from the high melting point phase to the low melting point phase, and the transferring quantity increases with the addition of the amount of [B.sub.2][O.sub.3] additives. These results demonstrate that [B.sub.2][O.sub.3] additives can restrain the appearance of the perovskite phase, decrease the apparent viscosity, and promote the metallurgical properties of Ti-bearing blast furnace slag.
ISSN:2090-9063
DOI:10.1155/2019/5498325