Tetsu-to-Hagane
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
Distribution of Nb, P, Mn between Liquid Iron and MgO-saturated FetO-SiO2-NbOx-MnO Slags
Ryo INOUEXian PENG ZhangHONG LiHideaki SUITO
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1988 Volume 74 Issue 9 Pages 1765-1769

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Abstract

Experiments have been conducted to study the niobium, phosphorus, and manganese distribution between MgO-saturated FetO-MnO-SiO2-NbOxslags and liquid iron at 1 600°C. It is shown that the niobium dis tribution ratio increases with the iron oxide content in slag, whereas the phosphorus and manganese distribution ratios remain almost constant. Also, the thermodynamic criteria governing the selective oxidation of niobium, phosphorus and manganese in the extractive process of niobium from hot metal are discussed.

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