Treatment system and method for vanadium extraction tailings
A technology for extracting vanadium tailings and inlet, which is applied in the field of treatment systems for vanadium extraction tailings, and can solve problems such as less research
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Embodiment 1
[0054] Vanadium extraction tailings (TFe 38wt%, TiO 2 12wt%), titanium concentrate (TiO 2 45wt%), anthracite and then pelletized in a disc granulator to obtain pellets. Wherein, the mass ratio of each component is: vanadium extraction tailings: titanium concentrate: anthracite = 100:60:20. After the pellets are dried, they are reduced and roasted in a rotary hearth furnace at 1350° C. to obtain metallized pellets. Then, the metallized pellets are subjected to grinding and magnetic separation using a linkage device of a ball mill and a magnetic separator to obtain metallic iron powder and titanium slag. The iron grade in the obtained metal iron powder is 97.8%, and the recovery rate is 97.5%; in the titanium slag, TiO 2 The mass fraction is 55.3%, and the recovery rate is 98.8%.
Embodiment 2
[0056] Vanadium extraction tailings (TFe 30wt%, TiO 2 15wt%), titanium concentrate (TiO 2 47wt%) and coke are mixed evenly, and then briquetting is carried out by a roller briquetting machine to obtain pellets. Wherein, the mass ratio of each component is: vanadium extraction tailings: titanium concentrate: coke = 100:100:25. After the pellets are dried, they are reduced and roasted in a rotary kiln at 1400°C to obtain metallized pellets. Then, the metallized pellets are subjected to grinding and magnetic separation using a linkage device of a ball mill and a magnetic separator to obtain metallic iron powder and titanium slag. The iron grade in the obtained metal iron powder is 98.6%, and the recovery rate is 98.3%; in the titanium slag, TiO 2 The mass fraction is 58.4%, and the recovery rate is 99.3%.
Embodiment 3
[0058] Vanadium extraction tailings (TFe 35wt%, TiO 2 19wt%), titanium concentrate (TiO 2 50wt%) and semi-coke are mixed and pelletized in a disc granulator to obtain pellets. Wherein, the mass ratio of each component is: vanadium extraction tailings: titanium concentrate: semi-coke = 100:150:30. After the pellets are dried, they are reduced and roasted in a tunnel kiln at 1450°C to obtain metallized pellets. Then, the metallized pellets are subjected to grinding and magnetic separation using a linkage device of a ball mill and a magnetic separator to obtain metallic iron powder and titanium slag. The iron grade in the obtained metal iron powder is 99.1%, and the recovery rate is 98.6%; in the titanium slag, TiO 2 The mass fraction is 60.6%, and the recovery rate is 99.8%.
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