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- Title
Influence of VO Content on the Gas-Based Direct Reduction of Hongge Vanadium Titanomagnetite Pellets with Simulated Shaft Furnace Gases.
- Authors
Li, Wei; Fu, Guiqin; Chu, Mansheng; Zhu, Miaoyong
- Abstract
The influence of VO content on the gas-based direct reduction of Hongge vanadium titanomagnetite pellets (HVTMP) was investigated with simulated shaft furnace gases, and the content levels were selected as 0 wt.%, 2 wt.%, 4 wt.%, and 6 wt.%, respectively. The results indicated that, with the increase of VO content, the reduction was accelerated at an early stage due to the increase of the original porosity of the HVTMP. However, as the reduction proceeded, a slowing down in the reduction rate was observed, which was attributed to the formation of hardly reducible FeVO. Major phases of reduced HVTMP were FeVO, FeTiO, and metallic iron. The morphology showed that the size of metallic iron particles of reduced HVTMP decreased with the increase of VO content, V-bearing oxides embedded into the Ti-rich phases, and further reduction was restricted. This study not only established a relationship between the VO content of HVTMP and its reduction behavior but could also contribute greatly to the effective utilization of Hongge vanadium titanomagnetite in shaft furnace.
- Subjects
VANADIUM pentoxide; TITANIUM-vanadium alloys; MAGNETITE; FURNACES; TITANIUM dioxide; TITANIUM-iron alloys; POROSITY; CRYSTAL morphology
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2018, Vol 70, Issue 1, p76
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-017-2675-1