Upgrading a Ti-slag by a roast-leach process

被引：37

作者：

Dong, Haigang ^{[1
,2
]}

Jiang, Tao ^{[1
]}

Guo, Yufeng ^{[1
]}

Chen, Jialin ^{[2
]}

Fan, Xingxiang ^{[2
]}

机构：

[1] Cent S Univ, Changsha 410083, Hunan, Peoples R China

[2] Sinoplatinum Met Co Ltd, State Key Lab Adv Technol Comprehens Utilizat Pla, Kunming 650106, Yunnan, Peoples R China

来源：

HYDROMETALLURGY | 2012年 / 113卷

基金：

中国国家自然科学基金;

关键词：

High Ca and Mg titanium slag; Roasting; Leaching; Synthetic rutile; ROSETTA ILMENITE; TITANIA;

D O I：

10.1016/j.hydromet.2011.12.008

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A roast-acid leaching process has been developed for upgrading titanium slag with high Ca and Mg to a synthetic rutile. The optimized roasting conditions used a Na2CO3 to slag weight ratio of 3:7 at 850 degrees C-900 degrees C for 1 h. The roasted product was mainly comprised of sodium titanate, sodium ferrite and Na-Fe-Ti-O and Na-Mg-Ti-O phases. The impurities associated with the roasted product were leached in water and dilute sulfuric acid solution, while the soluble titanium precipitated as hydrated TiO2. The hydrated TiO2 was transformed into a synthetic rutile, assaying over 95% TiO2 and 0.82% MgO + CaO, by calcination. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：119 / 121

页数：3

共 11 条

[1]

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