摘要
采用化学平衡法测定了V在Fe液中的活度系数.实验包括2个渣-金平衡体系,一个体系是含V渣与Cu液平衡,另一个体系是含V渣与Fe液平衡.2个体系渣的成分相同,实验条件也完全相同.在相同的渣成分、气氛和温度条件下,将使2个体系渣中钒氧化物的活度相同.故而,与渣平衡的Fe液和Cu液中V的活度也相同.因此,根据V在Cu液中的活度系数,可确定V在Fe液中的活度系数.采用上述方法,测得V在Fe液中的含量分别为0.28%、0.35%和0.43%时,活度系数分别为0.07、0.08和0.09.
The activity coefficients of vanadium in liquid iron were measured using chemical equilibrium method. This method consists of two slag-metal equilibria conducted under the same conditions. One is slag- metal equilibrium between vanadium-containing slag and liquid copper; the other is equilibrium between liquid iron and the same compositional slag. The same compositional slags, atmosphere and temperature were adopted, so that the activities of vanadium oxide in the two slags are identical. Consequently, the activity of vanadium in liquid iron and copper that equilibrated with the slags are equal to each other. If the activity coefficient of vanadium in liquid copper is determined, the activity coefficient of vanadium in liquid iron can be known. By adopting the method mentioned above, the activity coefficients of vanadium are determined. When the concentrations of vanadium in liquid iron are 0.28, 0.35 and 0.43 mass pct., the measured activity coefficients are 0.07, 0.08 and 0.09, respectively.
出处
《有色金属科学与工程》
CAS
2016年第1期11-14,共4页
Nonferrous Metals Science and Engineering
基金
国家自然科学基金资助项目(50974011
51174021)
中央高校基本科研业务费专项基金项目(FRF-TP-09-003A)
