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2015•Advanced materials researchOpen access

Experimental Research on Oolitic Hematite Utilizing Metallic Roasting-Magnetic Separation Processing

Bing Deng, Yuan Zhang, Qin Zhang, Zhi Yong Sun

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Abstract

The condition tests on the metallic roasting process and the magnetic separation process for the Exi oolitic hematite, are discussed. The results demonstrate that the oolitic hematite is roasted best with excess coal as reductant at the temperature of 1050°C for 3 hours, and a iron concentrate with the grade of 94%, the metallization rate of 95% and the recovery of 88% is obtained through permanent magnet roughing of coarse grains and magnetic media desliming after grinding.

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What this paper is about

The condition tests on the metallic roasting process and the magnetic separation process for the Exi oolitic hematite, are discussed. The results demonstrate that the oolitic hematite is roasted best with excess coal as reductant at the temperature of 1050°C for 3 hours, and a iron concentrate with the grade of 94%, the metallization rate of 95% and the recovery of 88% is obtained through permanent magnet roughing of coarse grains and magnetic media desliming after grinding.

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Available abstract

The condition tests on the metallic roasting process and the magnetic separation process for the Exi oolitic hematite, are discussed. The results demonstrate that the oolitic hematite is roasted best with excess coal as reductant at the temperature of 1050°C for 3 hours, and a iron concentrate with the grade of 94%, the metallization rate of 95% and the recovery of 88% is obtained through permanent magnet roughing of coarse grains and magnetic media desliming after grinding.

Key concepts: Hematite, Roasting, Materials science, Metallurgy, Grinding, Magnetic separation, Magnet, Metal

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