高磷的鲕状的铁矿石(HPOIO ) 的 carbothermic 减小的热力学的分析被 FactSage thermochemical 软件进行。温度, C/O 比率,添加剂类型,和剂量的效果两个都在 fluorapatite 和液体炉渣的形成的减小上被学习。结果证明由碳的 fluorapatite 的最小的热力学的减小温度减少到大约 850 吗?
A thermodynamic analysis of the carbothermic reduction of high-phosphorus oolitic iron ore(HPOIO) was conducted by the Fact Sage thermochemical software. The effects of temperature, C/O ratio, additive types, and dosages both on the reduction of fluorapatite and the formation of liquid slag were studied. The results show that the minimum thermodynamic reduction temperature of fluorapatite by carbon decreases to about 850°C, which is mainly ascribed to the presence of SiO_2, Al_2O_3, and Fe. The reduction rate of fluorapatite increases and the amount of liquid slag decreases with the rise of C/O ratio. The reduction of fluorapatite is hindered by the addition of CaO and Na_2CO_3, thereby allowing the selective reduction of iron oxides upon controlled C/O ratio. The thermodynamic results obtain in the present work are in good agreement with the experimental results available in the literatures.