根据实验研究,提出了钛磁铁矿球团的还原相变历程。通过热力学计算,分析了普通铁矿物和含钛铁矿物的热力学稳定性的差别,作出了用C-H-O系还原剂还原钛磁铁矿球团的平衡图。引证了实验室实验和竖炉扩大试验的数据作为验证。得出了用CO-CO_2、H_2-H_2O及CO-CO_2-H_2-H_2O混合气还原钛磁铁矿球团的氧交换图。 According to the experimental study, the reduction phase transformation process of titanium magnetite pellets was proposed. Thermodynamic calculation was used to analyze the difference of thermodynamic stability between ordinary iron ore and ilmenite. The equilibrium diagram of titanomagnetite pellets with C-H-O reductant was obtained. Cited laboratory experiments and shaft furnace expansion test data as validation. The oxygen exchange of titanomagnetite pellets with CO-CO_2, H_2-H_2O and CO-CO_2-H_2-H_2O mixtures was obtained.