Study on Deep Reduction and Efficient Separation of Lingyang Iron Ore

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The test for deep reduction and efficient separation of Lingyang iron ore from Linjiang that cannot be separated and utilized by any conventional mineral processing technology was conducted in the Laboratory, and the research results showed that iron from Lingyang iron ore was recovered effectively. In this paper, the effect of reduction temperature, time and coal content on reduction was analyzed, and the process of deep reduction and efficient magnetic separation was investigated. Furthermore, on such optimum conditions of deep reduction as reduction temperature 1275°C, time 50min, and coal content 40%, the reduction products were separated in the flowsheets of magnetic separation after fine grinding and the iron powder products with iron grade 79.58% and recovery 62.77% were obtained.

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310-314

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January 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] Zhao-hui Zhang et al. Behavior of iron magnetization and magnetic separation during roasting cyanide tailings. ICMREE (2011), pp.874-877.

Google Scholar

[2] O. Kubaschewski and C.B. Alcock Metallurgical. Thermochemistry[M]. New York: pergamon press, (1979), p.236~252.

Google Scholar

[3] Xenidis A. et al.. Reductive roasting and magnetic separation of Greek bauxite residue for its utilization in iron ore industry. Light Metals, (2009), pp.15-19.

Google Scholar

[4] Luo Li-Qun et al. Recovering limonite from Australia iron ores by flocculation-high intensity magnetic separation. Journal of Central South University of Technology (English Edition), Vol.12 (2005), pp.682-687.

DOI: 10.1007/s11771-005-0069-y

Google Scholar

[5] Nasr M.I., Youssef, M.A.. Optimization of magnetizing reduction and magnetic separation of iron ores by experimental design. Iron & Steel Inst of Japan, Vol.36 (1996), pp.631-639.

DOI: 10.2355/isijinternational.36.631

Google Scholar

[6] Yang Huifen et al.. Recovery of iron from vanadium tailings with coal-based direct reduction followed by magnetic separation. Journal of Hazardous Materials, Vol.185 (2010), pp.1405-1411.

DOI: 10.1016/j.jhazmat.2010.10.062

Google Scholar

[7] Xenidis Anthimos et al.. Reductive roasting and magnetic separation of Greek bauxite residue for its utilization in iron ore industry. (2009), pp.63-67.

Google Scholar