Abstract：In order to reduce the reduction and smelting-separation temperatures of vanadium-bearing titanomagnetite， and improve the recovery rate of Ti and V， the carbothermic reduction in combination with sodium-treatment was studied， and the effects of sodium agent on reduction as well as the distribution of Ti and V after smelting-separation were discussed. The sodium agent significantly improves the reducibility， the magnetic separation as well as the smelting-separation performance of vanadium-bearing titanomagnetite， the metallization ratio reached 90% at 1 100 ℃ for 60 min when the sodium ratio was 1.2， and the fine iron concentrate with a iron grade of 80% as well as iron yield of 92% was obtained after magnetic separation. The iron yield was higher than 95%， and the distribution ratio of V reached 91% when the sample was smelting-separated at 1 450 ℃. Moreover，[w(TiO2)]in slag reached 56% when the smelting-separation slag was washed in water.
收稿日期: 2016-02-23
出版日期: 2016-10-08
引用本文:
张 俊，戴晓天，严定鎏，齐渊洪. 钒钛磁铁矿碳热钠化还原工艺[J]. 钢铁, 2016, 51(10): 6-9.
ZHANG Jun，DAI Xiao-tian，YAN Ding-liu，QI Yuan-hong. Carbothermal sodium reduction process of vanadium-bearing titanomagnetite. Iron and Steel, 2016, 51(10): 6-9.
2016, Vol. 51 
