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在１３８２～１５３５℃，通过测定渣中ＦｅＯ浓度随时间的变化关系，确定了固体碳还原熔融ＦｅＯ－ＣａＯ－ＳｉＯ２－Ａｌ２Ｏ３渣系中ＦｅＯ的反应速度．得出该反应为一级反应，在不同的温度范围内有不同的表观活化能和经验速度表达式．研究表明，在１３８２～１４５５℃，界面化学反应为固体碳还原熔渣中ＦｅＯ反应速度的限制环节；而在１４５５～１５３５℃，渣中ＦｅＯ的对流扩散为其限制步骤．此外，还在１５１０℃估算了渣中ＦｅＯ对流扩散的有效边界层厚度及其与转速的对应关系．
From 1382 to 1535 ℃, the reaction speed of FeO in solid carbon-reduced molten FeO-CaO-SiO2-Al2O3 slag system was determined by measuring the relationship between the concentration of FeO in slag and time. It is concluded that the reaction is a first order reaction and has different apparent activation energy and empirical velocity expressions in different temperature ranges. The results show that at 1382 ~ 1455 ℃, the interfacial chemical reaction is the limiting part of the reaction speed of FeO in solid carbon reduction slag. However, the convective diffusion of FeO in slag is the limiting step at 1455-1535 ℃. In addition, the effective boundary layer thickness of convection and diffusion of FeO in slag and its corresponding relationship with rotating speed were also estimated at 1510 ℃.