攀钢含钛高炉渣中钛组分的分离提取研究.pdfVIP

Study on the Separation and Extraction of Titanium Components from Ti-bearing Blast Furnace Slag Introduction of the author: LI Junhan, female, was born in December, 1985, whose tutor was Professor QIU Kehui. She graduated from Chengdu University of Technology in Material Science major and was granted the Master Degree in June, 2010. Abstract Panzhihua and Xichang area is the world-famous Vanadium and Titanium Capital for the enrichment of V-Ti magnetite resources. The Vanadium and Ttitanium resources hosted in the polymetallic paragentic mineral deposits in the form of V-Ti magnetite. About 50% titanium in the V-Ti magnetite enter into the concentrate iron ore during the Mineral Separation, after the blast-furnace slag is smelted, which nearly all enter into the Ti-bearing blast furnace slag containing 2026%TiO2 . At present, a large number of slags have been piled up resulting in environmental pollution and resources waste. Although decades of researches and efforts, the utilization of the slags has not been given. Therefore, it is an urgent practical problem to study the extraction and utilization of valuable components from the blast-furnace slags. In order to extract the titanium components from the blast furnace slag effectively, the chemical composition, phase composition and microstructure of air-cooled and water-quenched blast furnace slags are analyzed and investigated. The results show that the two kinds of slags have similar chemical compositions. However, there are big differences in the phase compositions and microstructures between the two kinds of slags, which should be caused by the different cooling ways after the slags are e