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- Title
Behavior of Silicon During Reduction and Smelting of Vanadium Titanomagnetite Metallized Pellets in an Electric Furnace.
- Authors
Wang, Shuai; Guo, Yufeng; Jiang, Tao; Chen, Feng; Zheng, Fuqiang; Yang, Lingzhi
- Abstract
The behavior of silicon during smelting of vanadium titanomagnetite metallized pellets in an electric furnace has been investigated thermodynamically and experimentally. Thermodynamic calculations indicated that the activities of free oxygen ion and silicate increase with increasing CaO and MgO content in the titanium slag, whereas silica activity decreases as CaO and MgO increase. High-temperature experiments demonstrated that the Si content in the molten iron and distribution ratio of silicon between metal and slag decreased with suitable additions of CaO and MgO, but increased with smelting temperature. The Si content in the iron positively correlated with the Ti content in the iron but showed no obvious relationship with the V content in the iron. The Si and Ti contents increased with increasing smelting temperature. The Si content should be controlled below about 0.2 wt.% for effective and comprehensive smelting of vanadium titanomagnetite.
- Subjects
SILICON compounds; FLUX (Metallurgy); VANADIUM; X-ray diffraction; TITANIUM; ELECTRIC furnaces
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2019, Vol 71, Issue 1, p329
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-018-2922-0