The Influence of SiO2 on the Extraction of Ti Element from Ti-bearing Blast Furnace Slag

被引：57
作者：
Li, Jing [1 ]
Zhang, Zuotai [1 ]
Zhang, Mei [2 ]
Guo, Min [2 ]
Wang, Xidong [1 ]
机构：
[1] Peking Univ, Dept Energy & Resources Engn, Coll Engn, Beijing 100871, Peoples R China
[2] Univ Sci & Technol Beijing, Dept Phys Chem, Beijing 100081, Peoples R China
来源：
STEEL RESEARCH INTERNATIONAL | 2011年 / 82卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Anosovite; Crystallization behavior; SiO2; Ti-bearing Blast Furnace slag; DYNAMIC OXIDATION; PEROVSKITE PHASE; PRECIPITATION; TITANIUM;
D O I：
10.1002/srin.201000217
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
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 SiO2 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 SiO2 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.
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收藏
页码：607 / 614
页数：8
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