典型钒钛磁铁矿的烧结基础特性

doi:10.13228/j.boyuan.issn0449-749x.20190410

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Abstract In recent years, the prices of important metals such as vanadium, titanium, and chromium have skyrocketed. The efficient development and utilization of vanadium titanium magnetite resources can not only alleviate the shortage of iron ore resources, but also solve the contradiction between supply and demand of important metals. It is conducive to the sustainable development of China′s steel industry. The sintering basic characteristics of five typical vanadium titanium magnetite concentrates with large domestic usage were systematically studied by micro-sintering equipment. The phase composition of vanadium titanium magnetite concentrate was analyzed by XRD and SEM-EDS. The results show that the sintering basic characteristics of vanadium titanium magnetite are closely related to its chemical composition and phase composition. The main phase of low-titanium vanadium titanium magnetite is magnetite, and the comprehensive evaluation index of sintering basic characteristics is relatively better, of which CJ is the best. However, the main phase of high-titanium vanadium titanium magnetite is magnetite and ilmenite, their basic characteristics are very poor,which is mainly affected by titanium. On the whole, the vanadium titanium magnetite has a poor sintering basic characteristic and should be matched with iron concentrate with better basic characteristics as much as possible.

Key words： vanadium titanium magnetite phase composition sintering basic characteristics comprehensive assessment

Received: 03 September 2019

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	HE Zhan-wei
	XUE Xiang-xin

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HE Zhan-wei,XUE Xiang-xin. Basic sintering characteristics of several typical vanadium titanium magnetite[J]. Iron and Steel, 2020, 55(5): 20-25.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20190410 OR http://www.chinamet.cn/Jweb_gt/EN/Y2020/V55/I5/20

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