Study on Process Mineralogy and Iron Separation Technology by Step Milling-Magnetic Separation

Jump To References Section


  • College of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070 ,CN
  • State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044 ,CN
  • Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang, Sichuan 621010 ,CN
  • Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang, Sichuan 621010 ,CN
  • Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang, Sichuan 621010 ,CN


Poor magnetite; iron grade; magnetic analysis; iron selection test; iron recovery rate; dry magnetic separation.


The main mineral in the iron ore from Hubei was poor magnetite, it has fine granularity and low iron grade. The content of total iron (TFe) in the original ore is from 12% to 20%, and the content of magnetic iron (MFe) was from 6% to 13%. Through the process mineralogy research, crushing product sieving, magnetic analysis and grinding granularity test, the iron ore products with an iron concentrate grade of 68.84% and an iron recovery rate of 72.87% can be obtained. In the study, it was found that the iron grade of the original ore and the magnetic iron (MFe) were 12.11% and 16.34% respectively. The iron grade of ore size of -0.074 mm was low in negative cumulative and positive cumulative analysis. The iron recovery rate was relatively low, i.e., 57.89%, this was due to that 19.89% of the ferric silicate in the sample of the raw ore cannot be recovered. Through dry magnetic separation, the iron grade can be raised to about 2.18%.


Download data is not yet available.


Metrics Loading ...




How to Cite

Luo, L., Tian, S., Wu, Q., Chen, Z., & Peng, T. (2022). Study on Process Mineralogy and Iron Separation Technology by Step Milling-Magnetic Separation. Journal of Mines, Metals and Fuels, 67(3), 120–126. Retrieved from






. Ahmed, A.M., A.A. (2015): Elgeassy, and M.L. Mishreky, Crude steel directly from pre-reduced high manganese containing iron ore. Ironmaking & Steelmaking, 2015. 42(3): p. 161-168.

. Forsmo, S.P.E., A.J. Apelqvist, B.M.T. Björkman, and P.O. Samskog. (2016): Binding mechanisms in wet iron ore green pellets with a bentonite binder. Powder Technology, 2016. 169(3): p. 147-158.

. Lee, H. and B. Mishra. (2018): Selective recovery and separation of copper and iron from fine materials of electronic waste processing. Minerals Engineering, 2018. 123: p. 1–7.

. Mighall, T., S. Timberlake, A. Martínez-Cortizas, N. Silva-Sánchez, and I.D.L. Foster. (2017): Did prehistoric and Roman mining and metallurgy have a significant impact on vegetation? Journal of Archaeological Science Reports, 2017. 11: p. 613-625.

. Feng, L., J. Deng, X. Xun, Z. Cao, J. Tang, and D. Wu. (2017): Comprehensive Utilization of Ludwigite Iron Concentrate by Gas-based Direct Reduction. 2017.

. Tripathy, A., S. Bagchi, D.S. Rao, B.K. Nayak, P.K. Rout, and S.K. Biswal. (2018): Recovery of magnetite from low grade banded magnetite quartzite (BMQ) ore. Metallurgical Research & Technology, 2018. 115(3): p. 302.

. Angadi, S.I., C. Eswaraiah, H.S. Jeon, B.K. Mishra, and J.D. Miller. (2017): Selection of Gravity Separators for the Beneficiation of the Uljin Tin Ore. Mineral Processing & Extractive Metallurgy Review, 2017. 38(1): p. 8.

. Yu, J., Y. Han, Y. Li, P. Gao, and Y. Sun. (2017): Separation and recovery of iron from a low-grade carbonate-bearing iron ore using magnetizing roasting followed by magnetic separation. Separation Science & Technology, 2017: p. 01496395.2017.1296867.

. Xiong, W., D. Jie, B. Chen, S. Deng, and D. Wei. (2018): Flotation-magnetic separation for the beneficiation of rare earth ores. Minerals Engineering, 2018. 119: p. 4956.

. Jimã©Nez, S., M.M. Micã³, M. Arnaldos, E. Ferrero, J.J. Malfeito, F. Medina, and S. Contreras. (2017): Integrated processes for produced water polishing: Enhanced flotation/sedimentation combined with advanced oxidation processes. Chemosphere, 2017. 168: p. 309-317.

. Wu, J., B. Skallerud, J. He, and Z. Zhang. (2017): Grainsize Induced Strengthening and Weakening of Dislocation-free Polycrystalline Gas Hydrates. Procedia Iutam, 2017. 21: p. 11-16.

. Nakhaei, F. and M. Irannajad. (2017): Reagents types in flotation of iron oxide minerals: A review. Mineral Processing & Extractive Metallurgy Review, 2017(1): p. 1-36.

. Tripathy, S.K., S.I. Angadi, N.K. Patra, and D.S. Rao. (2018): Comparative separation analysis of direct and reverse flotation of dolomite fines. Mineral Processing & Extractive Metallurgy Review, 2018(1): p. 1-12.

. Wulandari, W., M. Purwasasmita, E. Sanwani, A.A. Pixelina, and A. Maulidan. (2017): Implementation of reverse flotation method to reduce reactive and nonreactive silica in bauxite ore from West Kalimantan. In American Institute of Physics Conference Series. 2017.

. Leshuk, T., A.B. Holmes, D. Ranatunga, P.Z. Chen, Y. Jiang, and F. Gu. (2018): Magnetic flocculation for nanoparticle separation and catalyst recycling. Environmental Science Nano, 2018. 5(2).

. Galizia, P., M. Cernea, V. Mihalache, L. Diamandescu, G. Maizza, and C. Galassi. (2017): Easy batch-scale production of cobalt ferrite nanopowders by two-step milling: Structural and magnetic characterization. Materials & Design, 2017. 130: p. 327-335.

. Ponomar, V.P. (2018): Synthesis and magnetic properties of magnetite prepared by chemical reduction from hematite of various particle sizes. Journal of Alloys & Compounds, 2018. 741.

. Hoang, T., J. Cho, and A. Lazarian. (2018): Alignment of Irregular Grains by Mechanical Torques. Astrophysical Journal, 2018. 852.

. Koshlyakova, N., I. Pekov, V. Yapaskurt, N. Shchipalkina, and E. Sidorov. (2017): As-bearing potassium feldspar - a product of fumarole exhalations and gas-rock interactions at the Tolbachik volcano, Kamchatka, Russia. 2017.

. Zhao, T., W. Jin, X. Ji, J. Gao, C. Xiong, A. Dang, L. Hao, T. Li, S. Shang, and Z. Zhou. (2017): Preparation and electromagnetic wave absorbing properties of 3D graphene/pine needle-like iron nano-acicular whisker composites. Rsc Advances, 2017. 7(26): p. 16196-16203.

. Brown, C., C. Davies, N. Brown, and T. Paterson. (2018): Sieving the class: Teaching particle size distributions and analysis. Education for Chemical Engineers, 2018: p. S1749772818300058.

. Unland, G. and P. Szczelina. (2004): Coarse crushing of brittle rocks by compression. International Journal of Mineral Processing, 2004. 74: p. S209-S217.

. Andrés, S., E. Jaramillo, R. Bodas, C. Blanco, J. Benavides, P. Fernández, E.P. González, J. Frutos, Á. Belenguer, and S. López. (2018): Grain grinding size of cereals in complete pelleted diets for growing lambs: Effects on ruminal microbiota and fermentation. Small Ruminant Research, 2018. 159: p. 38-44.

. Ma, G., L. Cheng, L. Lu, F. Yang, X. Chen, and C. Zhu. (2017): Effects of DC bias on magnetic performance of high grades grain-oriented silicon steels. Journal of Magnetism & Magnetic Materials, 2017.

. Mohapatra, J.N., S. Patil, R. Sah, P.C. Krishna, and B. Eswarappa. (2018): Failure Analysis and Magnetic Evaluation of Tertiary Superheater Tube Used in GasFired Boiler. Journal of Materials Engineering & Performance, 2018. 27(57): p. 1-10.

. Chen, L., Y. Zheng, J. Zeng, Y. Zheng, and L. Jian. (2017): Magnetic Field Characteristics of Wet Belt Permanent High Gradient Magnetic Separator and its Full-Scale Purification for Garnet Ore. IEEE Transactions on Magnetics, 2017. PP(99): p. 1-1.

. Nodirmatov, E.Z., S.A. Faiziev, A.A. Ismatov, M.S. (2008): Paizullakhanov, and M.A. Zufarov, Glassceramic materials based on pyroxene Koitash mine tailings, obtained in Big Solar Furnace. Applied Solar Energy, 2008. 44(3): p. 200-201.

. Yu, J.W., Y.X. Han, P. Gao, and Y.J. Li. (2017): Recovery of boron from high-boron iron concentrate using reduction roasting and magnetic separation. Journal of Iron & Steel Research International, 2017. 24(2): p. 131-137.

. Cairoli, A., R. Klages, and A. Baule. (2018): Weak Galilean invariance as a selection principle for stochastic coarse-grained diffusive models. Proc Natl Acad Sci U S A, 2018: p. 5714-5719.

. Zhang, W., M. Miao, J. Pan, A. Sotto, J. Shen, C. Gao, and B.V.D. Bruggen. (2017): Separation of divalent ions from seawater concentrate to enhance the purity of coarse salt by electrodialysis with monovalentselective membranes. Desalination, 2017. 411: p. 28-37.