Carbothermic Reduction of Panzhihua Oxidized Ilmenite in a Microwave Field

被引：33

作者：

Lei, Ying ^{[1
,2
]}

Li, Yu ^{[1
,2
]}

Peng, Jinhui ^{[1
,2
]}

Guo, Shenghui ^{[1
,2
]}

Li, Wei ^{[2
]}

Zhang, Libo ^{[1
,2
]}

Wan, Rundong ^{[2
]}

机构：

[1] Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Yunnan, Peoples R China

[2] Kunming Univ Sci & Technol, Minist Educ, Key Lab Unconvent Met, Kunming 650093, Yunnan, Peoples R China

来源：

ISIJ INTERNATIONAL | 2011年 / 51卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Panzhihua ilmenite; microwave irradiation; oxidized ilmenite; composite pellets; carbothermic reduction; OXIDES;

D O I：

10.2355/isijinternational.51.337

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The reductions of Panzhihua coke bearing oxidized ilmenite pellets in a microwave field at the temperature ranging from 800 to 1 100 degrees C were studied. The reduction of composite pellets by conventional heating at 900 to 1 200 degrees C was also investigated as a comparison. A higher reduction reaction rate has obtained in the microwave field. Lower temperature and shorter time were demand for the microwave reduction of ilmenite due to the hotpots in the composite pellets inside the microwave field. The microwave irradiation has some special effect on phase and morphology change. The presence of crack and holes in composite pellets inside microwave field are beneficial due to the atmosphere diffusion and subsequent procedures such as separation of Fe metal and titanium oxide.

引用

页码：337 / 343

页数：7

共 32 条

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