物理化学学报 >> 2000, Vol. 16 >> Issue (08): 708-712.doi: 10.3866/PKU.WHXB20000807

研究论文 上一篇    下一篇

CaO-SiO2-Al2O3-MgO-TiOx-FeOy体系氧化动力学

李辽沙, 娄太平, 车荫昌, 隋智通   

  1. 东北大学材料与冶金学院,沈阳 110006
  • 收稿日期:1999-11-26 修回日期:2000-02-16 发布日期:2000-08-15
  • 通讯作者: 李辽沙 E-mail:Liliaosha@263.net

Kinetics on the Oxidation of CaO-SiO2-Al2O3-MgO-TiOx-FeOy System

Li Liao-Sha, Lou Tai-Ping, Che Yin-Chang, Sui Zhi-Tong   

  1. Northeastern University,Shenyang 110006
  • Received:1999-11-26 Revised:2000-02-16 Published:2000-08-15
  • Contact: Li Liao-Sha E-mail:Liliaosha@263.net

摘要:

用电动势和化学分析方法研究了富钛还原熔渣-CaO-SiO_2-Al_2O_3-MgO-TiO_x-FeO_y体系的氧化动力学,得出了氧在熔渣中的扩散速率常数分别为 0. 66×10-5 m• s-1和 1.98×10-5 m• s-1,研究表明:固体电解质构成的氧浓差电池法得出的结果不仅可靠,且方法快速、简便.

关键词: 炉渣, 动力学, 固体电解质, 扩散, TiO2

Abstract:

Study on the kinetics of oxidation of Ti-enriched slag (CaO-SiO_2-Al_2O_3-MgO-TiO_x-FeO_y system)was carried out by E. M. F. method and chemical analysis. The diffusion rate constants of oxygen within the molten slag were obtained which are 0.66×10-5 m•s-1 and 1.98×10-5 m• s-1 respectively. The experimental work showed that E. M. F. is a quick and convenient method.

Key words: Slag, Kinetics, Solid electrolyte, Diffusion, TiO2