Premium
The Influence of SiO 2 on the Extraction of Ti Element from Ti‐bearing Blast Furnace Slag
Author(s) -
Li Jing,
Zhang Zuotai,
Zhang Mei,
Guo Min,
Wang Xidong
Publication year - 2011
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.201000217
Subject(s) - titanium , blast furnace , ground granulated blast furnace slag , materials science , slag (welding) , metallurgy , bearing (navigation) , crystallization , extraction (chemistry) , diffraction , chemical engineering , chemistry , cement , cartography , chromatography , engineering , geography , physics , optics
The present paper investigated the crystallization behavior of Ti‐concentrating phases in titanium‐bearing blast furnace slags influenced by the silica content. The objective was to recycle the titanium from titanium‐bearing blast furnace slags by enriching Ti element in anosovite. The effect of SiO 2 on the formation of anosovite in the titanium‐bearing blast furnace slags was studied under C/CO equilibrated atmospheres using a combination of X‐ray Diffraction (XRD) and Energy Dispersive X‐ray Spectroscopy (EDX). It was found that, under the C/CO equilibrated atmospheres, the formed primary phases transformed from perovskite to anosovite by adding SiO 2 up to 35 wt% in the slags. The related mechanism was investigated according to the theory of molten slags structure and the principle of thermodynamics.