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通过热力学分析方法,结合相关热力学数据,从去磷保铬保碳的角度,对铬铁合金氧化脱磷的反应过程进行了分析计算。计算结果表明,BaO基高碱性渣更适合于铬铁合金的氧化脱磷,另外,加入适量的Cr2O3,可以更好的控制体系中的氧势值,提高初始碳含量、降低初始温度,有利于铬铁合金氧化脱磷,从而为铬铁合金的冶炼提供理论依据。
Through the thermodynamic analysis method and the related thermodynamic data, the reaction process of the oxidative dephosphorization of the ferrochromium alloy was analyzed and calculated from the perspective of dephosphorization and chilling preservation of carbon. The calculated results show that the BaO-based overbased slag is more suitable for the oxidative dephosphorization of ferrochromium. In addition, adding appropriate Cr2O3 can better control the oxygen potential in the system, increase the initial carbon content and decrease the initial temperature, which is in favor of Fe-Cr alloy oxidation dephosphorization, thereby providing a theoretical basis for the smelting of ferrochromium alloy.