Nb_2O_5-MnO-SiO_2渣中Nb_2O_5和MnO活度的研究

金属学报, 1990, 26(1): 91-95.

Nb_2O_5-MnO-SiO_2渣中Nb_2O_5和MnO活度的研究

张圣弼 , 魏寿昆 , 王瑞茵 , 李立曼

教授

北京(100083)

北京科技大学

关键词：活度 , Nb_2O_5-MnO-SiO_2 system , slag

ELECTROCHEMICAL STUDY OF ACTIVITY OF Nb_2O_5 AND MnO IN Nb_2O_5-MnO-SiO_2 SYSTEM

ZHANG Shengbi , WEI Shoukun , WANG Ruiyin , LI Liman University of Science and Technology Beijing Professor

Keywords： activity , Nb_2O_5-MnO-SiO_2 , 渣

本文利用含NbFe液与Nb_2O_5-MnO-SiO_2渣之间平衡,在1828K温度下应用固体电解质浓差电池方法测定了Fe液中氧的活度,从而计算出渣中Nb_2O_5及MnO的活度,并绘制了Nb_2O_5-MnO-SiO_2三元系的等α_(Nb_2O_5)和等α_(MnO)图。

Equilibrium between liquid Fe containing Nb with Nb_2O_5-MnO-SiO_2slag was investigated at 1828 K, the solid electrolyte oxygen concentration cell be-ing used to measure the activity of oxygen in the metal bath. The activity of Nb_2O_5and MnO in the slag was evaluated, accompanied with an iso-activity diagram ofα_(Nb_2O_5) and α_(MnO) in Nb_2O_5-MnO-SiO_2 slag.

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