Determination of the Magnetic Material Composition in Magnetite Ore and Processability Evaluation

Abstract

Magnetite samples were magnetically separated with a magnetic tube and artificial magnetic separation. The contents of TFe, P, S, V2O5, TiO2, SiO2, Al2O3, CaO, MgO, Sn, Cu, Pb and Zn in the magnetite samples were determined. The results of the two separation methods were consistent. Consequently, artificial magnetic separation in subsequent experiments was chosen in order to simplify the process. The average content of mFe in mining area A (22.42%) was lower than that in mining area B (22.59%), but the content of TFe in the magnetic material of mining area A magnetite samples (>66%) was higher than that in mining area B ( 0.15% and TiO2>3% in the magnetite. The magnetite with a(CaO+MgO)/(SiO2+Al2O3) ratio of 0.876 is the self-fluxing ore, but the magnetic material of this magnetite with a (CaO+MgO)/(SiO2+Al2O3) ratio of 0.453 is acid ore. This indicates that the evaluation of the magnetite does not depend on the contents of each component in the ore sample, but rather depends on the contents of each component in the magnetic material of the magnetite. Through the determination of magnetic materials in magnetite ore, a new evaluation method for magnetic separation and smelting has been determined.

Keywords

• magnetite
• artificial magnetic separation
• magnetic material
• iron
• component analysis
• processability evalution