Comprehensive utilization of Panzhihua ilmenite concentrate by vacuum carbothermic reduction

被引：37
作者：
Huang, Run [1 ,2 ]
Liu, Pengsheng [1 ,2 ]
Qian, Xing [1 ,2 ]
Zhang, Jinzhu [1 ,2 ]
机构：
[1] Guizhou Univ, Sch Met & Mat, Guiyang 550025, Peoples R China
[2] Guizhou Prov Key Lab Met Engn & Energy Proc Energ, Guiyang 550025, Peoples R China
来源：
VACUUM | 2016年 / 134卷
关键词：
Ilmenite concentrate; Vacuum carbothermic reduction; Thermodynamic calculation; Volatility; Titania slag; KINETICS; CARBON;
D O I：
10.1016/j.vacuum.2016.09.006
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An electric arc furnace is mainly employed to produce high titania slag, although impurities could not be removed through this process, making the production of titania pigment through chlorination difficult. Removal of impurities is crucial to fully utilize low-grade ilmenite, especially the Panzhihua ilmenite concentrate obtained in China. This work proposes a new process to maximize Panzhihua titanium resources. Panzhihua ilmenite concentrate was reduced in a vacuum furnace, and residual slag and condensations were subsequently obtained. When the temperature exceeded 1500 degrees C and the carbon content exceeded 12%, Mg and Si impurities were removed, entered the gas phase, and formed ferrosilicon alloy. Finally, high-grade titania slag was obtained. (C) 2016 Elsevier Ltd. All rights reserved.
引用
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页码：20 / 24
页数：5
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