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| Research and Development of Efficient Utilization Technology of Ilmenite |
| PANG Jian-ming,GUO Pei-min,ZHAO Pei |
| （Center of Efficient Utilization of Resources by Low-Temperature Metallurgy, China Iron and Steel Research Institute Group, Beijing 100081, China） |
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Abstract The reduction of ilmenite was more difficult than the common iron ore in thermodynamic aspect. The dynamic study shows that the reduction rate could be accelerated when ilmenite powder is refined further. The best reduction temperature of ilmenite by powdered carbon should be 900-1100℃. Carburization is favorable for ferrite grain growth. The more carburization is, the better ferrite grain growth is. The outfield has played a noticeable role in ferrite grain growth, which could provide the best condition for the separation between titanium slag and iron. The iron nugget formed by ferrite grain growth and high titanium slag could be obtained by simple magnetic separation. With low reaction temperature and elimination of the electric smelting process, this technology is a new method for an efficient utilization of resources and energy. The efficient utilization technology of ilmenite has the advantages of high efficiency, low-energy consumption, low investment and low cost.
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Received: 05 January 2012
Published: 18 June 2013
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2013, Vol. 48 
