Enrichment of titanium dioxide in red mud: a kinetic study

被引：63

作者：

Kasliwal, P ^{[1
]}

Sai, PST ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem Engn, Madras 600036, Tamil Nadu, India

来源：

HYDROMETALLURGY | 1999年 / 53卷 / 01期

关键词：

titanium dioxide; red mud; leaching;

D O I：

10.1016/S0304-386X(99)00034-1

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A process is described for the enrichment of titanium dioxide in red mud. The procedure employed is leaching the red mud with hydrochloric acid followed by roasting the leached residue with sodium carbonate. The kinetics of leaching of various constituents of red mud were obtained experimentally in a stirred batch reactor. The variables include acid to mud ratio and temperature. The data obtained were analysed using the shrinking core model and Jander's equation. The effect of roasting time and temperature on percentage dissolution of alumina in leached residue was studied using a full factorial search and optimized conditions were obtained. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：73 / 87

页数：15