某低品位钒钛磁铁矿干式选铁尾矿的选钛试验

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Titanium Concentration of Dry Tailings from Iron Separation of a Low-grade Vanadium-titanium Magnetite

1. Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Chengdu 610041, Sichuan, China;
2. Key Laboratory of Vanadium-titanium Magnetite Comprehensive Utilization, Ministry of Land and Resources, Chengdu 610041, Sichuan, China;
3. Metal Mineral Resources Comprehensive Utilization Technology Research Center, China Geological Survey, Chengdu 610041, Sichuan, China

摘要: 某低品位钒钛磁铁矿干式选铁尾矿含钛9.65%,由于矿区严重缺水,钛资源一直未被回收利用。针对该矿铁钛矿物嵌布特点,制定了干式预选抛尾、磨矿弱磁除铁、强磁浮选选钛的技术方案,研究了磁场强度、磨矿细度等对选别指标的影响,最终获得了TiO₂品位45.29%、回收率45.34%的钛精矿,有效回收了矿石中的钛资源。
- 钒钛磁铁矿 /
- 尾矿 /
- 选钛 /
- 干式预选 /
- 浮选
Abstract: The dry tailings from iron separation of a low-grade vanadium-titanium magnetite contain 9.65% TiO₂. Due to an acute shortage of water in the mining area,titanium resources in the tailings have not been recycled. Considering the dissemination features of iron and titanium minerals in the tailings,a technical solution of dry pre-concentration for discarding followed by grinding and low-intensity magnetic separation for iron removal,then high-intensity magnetic separation and flotation for titanium concentration was designed. The effects of relevant factors (magnetic field intensity,grinding fineness,etc.) on the results were studied. Finally,the obtained titanium concentrate contained 45.29% TiO₂ with a recovery rate of 45.34%,which indicates an effective recovery of titanium resources in the ore.
- vanadium-titanium magnetite /
- tailings /
- titanium concentration /
- dry pre-concentration /
- flotation