Influences of Technological Parameters on Smelting-separation Process for Metallized Pellets of Vanadium-bearing Titanomagnetite Concentrates |
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Affiliation: | 1. School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083, China;2. Innovation and Technology Center of Panxi,Panzhihua University,Panzhihua 617000,Sichuan,China |
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Abstract: | The smelting-separation process for metallized pellets of vanadium-bearing titanomagnetite concentrates was studied.The influences of smelting temperature,smelting time,and the basicity of the metallized pellet on vana-dium and iron recovery were investigated.The characteristics of titanium slag were analyzed using X-ray diffraction, energy dispersive spectroscopy,and mineralographic microscopic analysis.The results demonstrate that appropriate increases in smelting temperature and smelting time can improve the vanadium and iron recovery from metallized pel-lets and are beneficial for the slag-iron separation.Although increasing the basicity of the metallized pellet can consid-erably improve the vanadium and iron recovery,the TiO2 grade of titanium slag was decreased.Under the optimal conditions,90·17% of vanadium and 92·98% of iron in the metallized pellet were recovered,and the TiO2 grade of titanium slag was 55·01%.It was found that anosovite,augite,spinel,glassiness,and metallic iron were the main mineral phases of the titanium slag. |
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Keywords: | metallized pellet smelting separation titanium slag vanadium vanadium-bearing titanomagnetite con-centrate |
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