Metall. Res. Technol.
Volume 113, Number 5, 2016
|Number of page(s)||8|
|Published online||15 August 2016|
Effect and mechanism of B2O3 on apparent viscosity of slag during smelting of vanadium-titanium magnetite in the Blast Furnace
Institute of Resources and Environment Science,
Pangang Group Research Institute Co. Ltd, Panzhihua
617000, Sichuan, P.R.
Accepted: 23 June 2016
Considering the low fluidity and the difficulties in separating high Ti-bearing blast furnace slag from hot metal, the effect of B2O3 on apparent viscosity under argon atmosphere was studied from 1340 °C to 1475 °C using Brookfield Rotational Viscometer, Metallographic Microscope, et al. The results showed that the addition of B2O3 could decrease melting temperature of high Ti-bearing blast furnace slag and increased its fluidity. With increasing the amount of B2O3 from 0 to 3%, mass fraction of perovskite in high Ti-bearing blast furnace slag gradually decreased, but four times the mass fraction of anosovite. The Ti(C,N) appeared enrichment in the high Ti-bearing blast furnace slag, and the enrichment changed with the addition of B2O3 increasing.
Key words: High Ti-bearing Blast Furnace Slag / perovskite / anosovite / apparent viscosity / B2O3
© EDP Sciences, 2016
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