选矿
钛
火法冶金
烘烤
冶金
材料科学
湿法冶金
碳化作用
浸出(土壤学)
萃取冶金
电解
磁选
磨细高炉矿渣
煤矸石
冶炼
环境科学
化学
硫酸
电解质
电极
复合材料
水泥
物理化学
土壤科学
土壤水分
作者
Yan Qu,Lei Xing,Minglei Gao,Suxing Zhao,Qianqian Ren,Lanjie Li,Yue Long
出处
期刊:Materials
[MDPI AG]
日期:2024-12-23
卷期号:17 (24): 6291-6291
摘要
The composition of TBFS is complex. It is categorized into low (W(TiO2) < 5%), medium (5% < W(TiO2) < 20%), and high-titanium slag (W(TiO2) > 20%) based on Ti content. The titanium in the slag is underutilized, causing it to accumulate and contribute to environmental pollution. Current methods for extracting titanium from TBFS include acid leaching, alkali fusion roasting, high-temperature carbonation–low-temperature chlorination, electrochemical molten salt electrolysis, and selective enrichment. However, these methods still face challenges such as environmental impact, high costs, low Ti recovery, and low Ti grade. This paper summarizes the mechanisms and characteristics of the above methods. Future research should focus on integrating pyrometallurgy with beneficiation processes, followed by further purification of titanium-rich phases through hydrometallurgy. Additionally, combining this with novel separation technologies (such as microwave and superconducting magnetic separation) will optimize the dissociation of titanium-bearing phases after enrichment.
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