Indirect determination of equilibrium distribution of V and Cr between liquid slag and solid iron at 1653 K and 101.3 kPa

¹ College of Materials Science and Engineering, Chongqing University, Chongqing 400044, P.R. China
e-mail: diaojiang@163.com
² Pangang Group Research Institute Co., Ltd., Panzhihua 617000, P.R. China

Received: 1 July 2016
Accepted: 1 September 2016

Abstract

In the present study, an indirect determination of equilibrium distributions of V and Cr between liquid FeO-SiO₂-MnO-TiO₂-V₂O₃-Cr₂O₃-MgO slag and solid iron was performed at 1653 K and 101.3 kPa. The experimental results were transformed to investigate the distributions of V and Cr between liquid vanadium-chromium slag and liquid iron. It was found that the distribution ratios determinated by indirect equilibrium method are slightly higher than that determinated by direct equilibrium method. Higher FeO content and lower SiO₂ content have positive effect on the distribution ratios of V and Cr. However, Cr₂O₃ and V₂O₃ in slag have little influence on the distribution ratios of V and Cr, respectively. Furthermore, the distribution ratios of V and Cr decrease distinctly with increasing temperature.