CaO基熔剂对钢液二次精炼脱磷速度的研究  

Study on dephosphorization rate of liquid steel in secondary refining process by CaO-based fluxes

作　　者：郭上型[1] 董元篪[1] 彭明[1] 

机构地区：[1]安徽工业大学冶金与材料学院,安徽马鞍山243002

出　　处：《安徽工业大学学报（自然科学版）》2003年第2期91-93,共3页Journal of Anhui University of Technology（Natural Science）

基　　金：安徽省教育厅自然科学基金资助项目(2000j1189zd)

摘　　要：利用CaO-Fe2O3-CaF2系熔剂,对磷质量分数≤0.050%的钢液进行二次精炼脱磷处理,测定熔剂中添加BaO,Al2O3时对钢液脱磷速度的影响关系。实验得到CaO基熔剂对钢液二次精炼处理时的脱磷反应速度常数k值以及磷在熔渣中传质系数D(P)/δ值。结果表明:添加剂BaO具有增大脱磷反应速度的作用,而Al2O3对脱磷反应速度影响不大。The rate of dephosphorization of liquid steel in the secondary refin ing process was investigated by using CaO-Fe2O3-CaF2 fluxes. The influence of BaO, Al2O3 as additives of the CaO-based fluxes on the De-P rate was disc ussed. The value of De-P reaction rate constant and mass-transfer coefficien t of phosphorus from slag-liquid steel interface to slag phase were measured. The results indicated that the De-P rate is increased with the addition of BaO , but the addition of Al2O3 have a little influence on increment of De-P rat e.

关 键 词：钢液 二次精炼 CAO基熔剂 脱磷速度 纯净钢 脱磷工艺 脱磷反应 

分 类 号：TF704.4[冶金工程—钢铁冶金]