烘烤
浸出(土壤学)
钛
冶金
冶炼
电弧炉
熔渣(焊接)
材料科学
二氧化钛
环境科学
土壤科学
土壤水分
作者
Jianfa Jing,Yufeng Guo,Shuai Wang,Feng Chen,Lingzhi Yang,Guanzhou Qiu
出处
期刊:Crystals
[MDPI AG]
日期:2022-07-09
卷期号:12 (7): 958-958
被引量:6
标识
DOI:10.3390/cryst12070958
摘要
Titanium slags produced through ilmenite electric furnace smelting contain 60–80%TiO2, a vital titanium resource in the titanium industry. The processing and utilization of titanium slag is faced with many challenges, such as complex mineral structures, high requirements, severe environmental pollution, and heavy additives and energy consumption. This study aims to review the technologies for the processing and utilization of titanium slag. First, we analyze the characteristics of titanium slag from different regions. Then, we discuss in detail the methods for processing and using titanium slag. The progress in electric furnace titanium slag processing and utilization can be divided into two areas: the preparation of titanium dioxide and high-quality titanium-rich materials. These include H2SO4 leaching, HCl leaching, fluoride leaching, sulfur roasting–leaching, alkaline roasting–leaching, oxide roasting–leaching, oxidation and reduction roasting–leaching, phosphorylation roasting–leaching, and ammonia decomposition leaching. Further development of oxide roasting–leaching for the extraction of titanium from titanium slag is recommended.
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