关键词: 钒钛磁铁矿石, 阶段磨选, 弱磁选, 强磁选, 浮选

Abstract: After decades of mining in Zhulan stope of Panzhihua Iron and Steel Group，the produc⁃ tion capacity is gradually declining. In order to ensure the sustainable development of Panzhihua's main mining area，the development and utilization technology of similar ores in the north extension ore body of Zhulan stope—Taiyangwan ore section was tested and studied. The results showed that the TFe，TiO₂ and V2O5 grades of the ore are 21.49%，10.54% and 0.17% respectively，which belongs to high sulfur，acidic， low iron and high titanium type primary vanadium-titanium magnetite ores. After two-stage grinding and low-intensity magnetic separation，iron concentrate with yield of 18.56%，TFe grade of 54.06%，TiO2 grade of 11.66% and TFe recovery rate of 46.69% could be obtained. After two-stage high-intensity mag⁃ netic separation + flotation processing for tailings from low-intensity magnetic separation，titanium concen⁃ trate with yield of 9.54%，TiO₂ grade of 47.00% and TiO₂ recovery rate of 42.54% could be obtained. Tai⁃ yangwan vanadium-titanium magnetite ore has high development and utilization value. The development and utilization of Taiyangwan ore resources can improve the resource support capacity of Panzhihua head⁃ quarters and extend the stable production service life of the mine.

Key words: vanadium-titanium magnetite ores, stage grinding and selecting, low intensity magnetic separation, high intensity magnetic separation, flotation