Crystallization and Coarsening Kinetics of Rutile Phase in Modified Ti-Bearing Blast Furnace Slag

AbstractThe aim of the present work is to elucidate crystallization and growing process of rutile crystals in Ti-bearing blast furnace slag. The samples were taken from the liquid slag and quenched at once at elevated temperatures in order to analyze phase transaction of titanium and grain size of rutile crystals. Crystallization and growing kinetics of rutile crystals under elevated temperature conditions were calculated, and the crystallization process of rutile crystals under isothermal conditions was expressed by Avrami equation. The effects of experimental parameters, such as experimental temperatures, SiO2 addition, cooling rate, crystal seed addition and oxygen flow, were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM), the optimal conditions for rutile crystals to grow up were obtained. Distribution and movement state of rutile crystals in the slag were analyzed.

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Kinetics of the leaching of TiO2 from Ti-bearing blast furnace slag

Journal of China University of Mining and Technology ◽

10.1016/s1006-1266(08)60058-9 ◽

2008 ◽

Vol 18 (2) ◽

pp. 275-278 ◽

Cited By ~ 23

Author(s):

Xiao-hua LIU ◽

Guo-sheng GAI ◽

Yu-fen YANG ◽

Zhi-tong SUI ◽

Li LI ◽

...

Keyword(s):

Blast Furnace ◽

Blast Furnace Slag ◽

Kinetics Of ◽

Furnace Slag

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Non-Isothermal Crystallization Kinetics of a Blast Furnace Slag Glass

Journal of the American Ceramic Society ◽

10.1111/j.1551-2916.2005.00354.x ◽

2005 ◽

Vol 88 (7) ◽

pp. 1859-1863 ◽

Cited By ~ 47

Author(s):

A. A. Francis

Keyword(s):

Blast Furnace ◽

Crystallization Kinetics ◽

Isothermal Crystallization ◽

Blast Furnace Slag ◽

Isothermal Crystallization Kinetics ◽

Slag Glass ◽

Kinetics Of ◽

Furnace Slag

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Effect of Oxidation on Phase Transformation in Ti-Bearing Blast Furnace Slag

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.641-642.363 ◽

2013 ◽

Vol 641-642 ◽

pp. 363-366 ◽

Cited By ~ 2

Author(s):

Wu Zhang ◽

Li Zhang ◽

Nai Xiang Feng

Keyword(s):

Phase Transformation ◽

Blast Furnace ◽

Blast Furnace Slag ◽

Glass Phase ◽

Perovskite Phase ◽

Rutile Phase ◽

X Ray Diffraction ◽

X Ray ◽

Furnace Slag ◽

Scanning Electron

Abstract. Effect of oxidation on phase transformation in Ti-bearing blast furnace slag is studied. The slag is analyzed by X-ray diffraction (XRD) and scanning electron microscope (SEM), EDX and metallographic microscope. The experiment results indelicate that the phase composition of the oxidized slag is simpler which are only rutile and glass phase. The titanaugite, Ti-rich diopside and perovskite phase are vanished and most of the Ti components were enriched in the rutile phase.

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