The effects of corrosion temperature, oxygen flow rate and corrosion time on the transformation of metallic iron were systematically studied, and the effects of mineral phases of Fe-bearing products on Ti–Fe separation were investigated. The reaction mechanism of metallic iron in corrosion process was proposed. The results showed that corrosion temperature played a key role in determining the transformation of metallic iron in reduced ilmenite during corrosion process. Under suitable corrosion conditions, Fe-bearing mineral in reduced ilmenite could be converted to amorphous ferric hydroxide, lepidocrocite, hematite and magnetite, respectively, and lepidocrocite was the most easily separated Fe-bearing mineral from corrosion products owing to the significant density difference between lepidocrocite and Ti-rich materials. The Ti-rich material with 77.81 wt.% TiO₂ and Fe-bearing product with 52.69 wt.% total Fe were obtained by gravity separation. The Ti recovery ratio and Fe recovery ratio were 91.16% and 86.27%, respectively.

系统地研究了腐蚀温度，氧气流速和腐蚀时间对金属铁的转化的影响，并研究了含铁产品的矿物相对Ti-Fe分离的影响。提出了金属铁在腐蚀过程中的反应机理。结果表明，腐蚀温度在确定还原过程中钛铁矿中金属铁的转化过程中起着关键作用。在适当的腐蚀条件下，还原钛铁矿中的含铁矿物可以分别转化为无定形氢氧化铁，纤铁矿，赤铁矿和磁铁矿，并且由于纤铁矿之间的密度差异很大，因此纤铁矿是最容易从腐蚀产物中分离出的含铁矿物。和富含钛的材料。参照图₂，通过重力分离获得了总Fe为52.69重量％的含Fe产物。Ti的回收率和Fe的回收率分别为91.16％和86.27％。