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精炼渣中FeO的活度模型
引用本文:薛正良,邹峰,熊锐,李建立,朱航宇. 精炼渣中FeO的活度模型[J]. 重庆大学学报(自然科学版), 2015, 38(5): 98-103. DOI: 10.11835/j.issn.1000-582X.2015.05.15
作者姓名:薛正良  邹峰  熊锐  李建立  朱航宇
作者单位:武汉科技大学 省部共建耐火材料与冶金国家重点实验室,武汉,430081
基金项目:武汉市科技攻关项目(20120321098)。
摘    要:根据熔渣结构的分子离子共存理论,建立了SiO2-Al2O3-CaO-MgO-FeO-MnO六元渣系的活度计算模型。计算得到了LF精炼渣中FeO的活度值,并分析了炉渣成分Al2O3、FeO以及碱度w(CaO)/w(SiO2)对FeO活度的影响,为帘线钢精炼变渣过程中控制回硫提供指导。

关 键 词:活度计算模型  FeO活度  作用浓度  共存理论
收稿时间:2015-02-21

Activity calculation model of FeO in refining slag
XUE Zhengliang,ZOU Feng,XIONG Rui,LI Jianli and ZHU Hangyu. Activity calculation model of FeO in refining slag[J]. Journal of Chongqing University(Natural Science Edition), 2015, 38(5): 98-103. DOI: 10.11835/j.issn.1000-582X.2015.05.15
Authors:XUE Zhengliang  ZOU Feng  XIONG Rui  LI Jianli  ZHU Hangyu
Affiliation:The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, P.R.China,The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, P.R.China,The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, P.R.China,The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, P.R.China and The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, P.R.China
Abstract:An activity calculation model for SiO2-Al2 O3-CaO-MgO-FeO-MnO slag system has been established according to the molecule-ion coexistence theory.From the model,the activity of FeO in the refining slag can be calculated,and the effects of MgO,FeO and basicity w(CaO)/w(SiO2 )in slag composition on the activity of components related to FeO have been analyzed in this paper,which can provide reference for steelmakers to study the control of resulfurization at changing slag’s process of LF refining to blow tire cord steel.
Keywords:activity calculation model   activity of FeO   mass action concentration   coexistence theory
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