Effect of Magnetic Field Intensity on Iron ore Separation Efficiency in slimes.

Singh, R K and Mehta, K D and Sharma, Mamta and Bhattacharyya, K K (2011) Effect of Magnetic Field Intensity on Iron ore Separation Efficiency in slimes. Journal of Sustainable Planet, 2 (3). pp. 44-49.

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Due to mechanized mining and present system of washing, iron ore industries facing a problem of huge slime generation.A detailed characterization of the slime generated during processing of ROM,has been studied.This slime is then beneficiated using hydrocyclone followed wet high intensity magnetic separator to recover the valuables. Slime sample generated from ROM through scrubbing and sizing,has been assayed and found to contain 59.25% Fe, 5.14% Al2O3, 4.11%SiO2, and 4.83% loss on ignition(LOI). Mineralogy studies through XRD have indicated the presence of hematite and goethite as major iron bearing minerals whereas, gibbsite, kaolinite, quartz as major gangue minerals. The present work involves, separating the gangue mineral from valuable iron bearing mineral viz.hematite etc. as identified during characterization. Multi-stage processing has been carried out at different magnetic field intensity. Detailed Characterization of product sample has been carried out to study the effect of field intensity on separation efficiency. Based on theses results,a flow sheet has been suggested to improve the yield of the concentrate substantially which is suitable material for the production of iron ore pellet.

Item Type:Article
Official URL/DOI:http://www.iates.org.in
Uncontrolled Keywords:Wet high intensity magnetic separator, Magnetic field intensity, Hydrocyclone, Slime, Phase
Divisions:Mineral Processing
ID Code:6111
Deposited On:05 Oct 2012 18:07
Last Modified:05 Oct 2012 18:07
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