Oxidation of high-titanium slags in the presence of water vapour

被引：28

作者：

Pistorius, PC ^{[1
]}

Motlhamme, T ^{[1
]}

机构：

[1] Univ Pretoria, Dept Mat Sci & Met Engn, ZA-0002 Pretoria, Gauteng, South Africa

来源：

MINERALS ENGINEERING | 2006年 / 19卷 / 03期

关键词：

extractive metallurgy; pyrometallurgy; oxidation;

D O I：

10.1016/j.mineng.2005.05.016

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

High-titanium slag can be oxidised by exposure to oxygen or water vapour, since the slag contains trivalent titanium and divalent iron; such oxidation is used in slag upgrading processes. The presence of water vapour may increase the rate of oxidation. To test this, samples of crushed high-titanium slag were oxidised in various mixtures of oxygen, argon, and water vapour, in a fluidised bed, at 800 degrees C, for up to 2 h. The presence of water vapour did increase the degree of oxidation, without changing the nature of the reaction products, which were rutile, pseudobrookite with increased iron content, and some anatase. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：232 / 236

页数：5

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