Thermodynamic Consideration of the Removal of Iron from Titanium Ore by Selective Chlorination

被引：37

作者：

Kang, Jungshin ^{[1
]}

Okabe, Toru H. ^{[2
]}

机构：

[1] Univ Tokyo, Grad Sch Engn, Dept Mat Engn, Bunkyo Ku, Tokyo 1138656, Japan

[2] Univ Tokyo, Inst Ind Sci, Meguro Ku, Tokyo 1538505, Japan

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2014年 / 45卷 / 04期

关键词：

CO-CL2; MIXTURES; ILMENITE ORE; RECOVERY; KINETICS;

D O I：

10.1007/s11663-014-0061-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thermodynamic study of the chlorination reactions of oxides such as titanium oxides and iron oxides at elevated temperatures was carried out in order to consider the removal of iron from titanium ore using selective chlorination method. In particular, various chlorination reactions were analyzed by utilizing chemical potential diagrams, and the applicability and usefulness of this thermodynamic study for analyzing the selective chlorination of titanium ore were demonstrated. Furthermore, chlorination reactions using various types of chlorinating agents were discussed from different viewpoints. It was shown that the selective chlorination of iron from titanium ore by HCl gas is thermodynamically feasible and efficient for upgrading titanium ore. Further, thermodynamic analysis showed that under certain conditions, TiCl4 can be used as a chlorinating agent for the iron in the ore, and iron can be removed by evaporation directly from the ore as chloride gas. The results presented in this study provide useful information for developing a process for upgrading low-grade titanium ore for use as a titanium smelting feed through a dry method. (C) The Minerals, Metals & Materials Society and ASM International 2014

引用

页码：1260 / 1271

页数：12

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