钒在FeO-SiO_2-MnO渣系与铁液间的分配行为  

Distribution Behaviors of Vanadium Between Hot Metal and FeO-SiO_2-MnO Slag System

作　　者：董进明[1,2] 赵飞[3] 张延玲[3] 仇圣桃[1] 干勇[1] 

机构地区：[1]钢铁研究总院连铸技术国家工程研究中心,北京100081 [2]北京蒂本斯工程技术有限公司,北京100070 [3]北京科技大学冶金与生态工程学院,北京100083

出　　处：《钢铁》2011年第7期14-20,共7页Iron and Steel

摘　　要：在实验室条件下，系统研究了1380℃下，钒在FeO—SiO2一MnO渣系与铁液间的分配行为。结果表明：钒的提取率、钒在渣一金两相的分配比、渣的钒容量随渣中SiO2的质量分数升高而降低。在SiO2的质量分数较低时，以上参数随MnO质量分数的增加而升高。而在SiO2的质量分数较高（〉20％）时，随MnO质量分数的增加呈现先升高后降低的趋势。FeO-SiO2一MnO三元渣系中，siO2的质量分数为10％～20％、MnO的质量分数为13％～5％时，以上参数达到最大值，且该区域对应着FeO-SiO2一MnO渣系熔点最低的区域。V2O3在FeO-SiO2一MnO渣系中活度系数的数量级为10^-6～10^-7。Under laboratory conditions, the distribution behavior of vanadium between hot metal and slag system of FeO-SiOz-MnO slag at 1 380 ℃ was studied. The results show： the extraction rate of vanadium {rom the hot metal, the distribution ratio of vanadium between slag and metal phases, and vanadium capacity of slag decrease with increasing SiO2 content; the parameters mentioned above increase with increasing MnO content in the condition of keeping SiOz content at lower level, when the SiOz content is larger than 20% they firstly increase and then decrease with increasing MnO content;in the slag system of FeO-SiOz-MnO, they reach the maximum value in the region of keeping w（SiOz ） at 10%0-20% and w（MnO） at 13%-25%, which is corresponding to the region of giving the lowest melting point; the magnitude of the activity coefficient of VzOa in FeO-SiO2-MnO slag system is 10^-6-10^-7.

关 键 词：钒 FeO-SiO2-MnO 渣系 分配行为 

分 类 号：TF841.3[冶金工程—有色金属冶金]