Beneficiation Study on an Oolitic Hematite

Abstract:

The oolitic hematite with a lower iron content and a higher phosphorus content will be a potential source of raw iron ore for the Chinese iron and steel industry. The magnetization reducing roasted and magnetic separation is a practical beneficiation process. The results show that the iron content in the concentrate can be increased to 57.63% from 45.95%, the iron recovery up to 73.12%, when the parameters are as follows, the roasting temperature is 900°C, the residence time 70 min, the ratio of reducing agent 5%, the grinding time 7 min, and the magnetic field strength 0.15T. The phosphorus content in the concentrate can be reduced to 0.23% from 0.39% by means of acid leaching.

• Periodical: Advanced Materials Research (Volumes 690-693)
• Pages: 202-205
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.690-693.202
• Online since: May 2013
• Authors: Jie Sun, Jin Zhu Zhang
• Keywords: Magnetic Separation, Oolitic Hematite, Roasting

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