测试熔融高冰镍中铁含量的固体电解质传感器
来源期刊：中国有色金属学报1997年第4期
论文作者：李福 洪彦若 毛裕文 李联生 周燕震 王鹏
文章页码：65 - 69
关键词：镍熔锍 铁传感器 固体电解质
Key words：nickel matte Fe sensor solid electrolyte
摘 要：以ZrO2(MgO)为固体电解质、(MgO+MgFe2O4)为辅助电极材料组成的测定熔融高冰镍中铁含量的电化学传感器，其电池式为：Mo, MoO2｜ZrO2(MgO)｜MgO+ MgFe2O4｜[Fe]matte, Mo。传感器在铁含量小于6.2%(质量 )的范围内测得的数值与化学分析值基本一致。介绍了温度在1483～1560K之间, 融体组成一定时，传感器电动势与温度的 关系，并据此得出了铁活度系数与温度的关系式，最后给出了由传感器电动势计算高冰镍中铁的质量百分含量的公式。
Abstract: An electrochemical Fe sensor with ZrO2(MgO) solid electrolyte and (MgFe2O4+MgO) auxiliary electrode material as the following formula has been developed: Mo, MoO2｜ZrO2(MgO)｜MgFe2O4+MgO｜[Fe]matte, Mo. The performances and measuring range of the sensor in matte were studied. The calculating equations of activity, activity coefficient and content of Fe in nickel matte were obtained from experimental data. The sensor was submitted to control the blowing end-point of ferro in converter process. During such in-plant tests it was confirmed that the stability of the sensor is excellent and it facilitates more accurate control of Fe contents at the blowing end-point of nickel matte.
