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Magnetic separation studies on ferruginous chromite fine to enhance Cr:Fe ratio

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Abstract

The Cr:Fe ratio (chromium-to-iron mass ratio) of chromite affects the production of chrome-based ferroalloys. Although the literature contains numerous reports related to the magnetic separation of different minerals, limited work concerning the application of magnetic separation to fine chromite from the Sukinda region of India to enhance its Cr:Fe ratio has been reported. In the present investigation, magnetic separation and mineralogical characterization studies of chromite fines were conducted to enhance the Cr:Fe ratio. Characterization studies included particle size and chemical analyses, X-ray diffraction analysis, automated mineral analysis, sink-and-float studies, and magnetic susceptibility measurements, whereas magnetic separation was investigated using a rare earth drum magnetic separator, a rare earth roll magnetic separator, an induced roll magnetic separator, and a wet high-intensity magnetic separator. The fine chromite was observed to be upgraded to a Cr:Fe ratio of 2.2 with a yield of 55.7% through the use of an induced roll magnetic separator and a feed material with a Cr:Fe ratio of 1.6.

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References

  1. J.F. Papp and R.L. Bruce, Industrial Minerals & Rocks: Commodities, Markets, and Uses, J.E. Kogel, N.C. Trivedi, J.M. Barker, and S.T. Krukowski, eds., Society for Mining, Metallurgy, and Exploration, 2006, p. 309.

  2. Y.R. Murthy, S.K. Tripathy, and R.C. Kumar, Chrome ore beneficiation challenges & opportunities: a review, Miner. Eng., 24(2011), No. 5, p. 375.

    Article  Google Scholar 

  3. V.D. Tathavadkar, M.P. Antony, and A. Jha, An investigation of the mineralogical properties of chemical grade chromite minerals, Scand. J. Metall., 33(2004), No. 2, p. 65.

    Article  Google Scholar 

  4. A. Güney, G. Önal, and T. Atmaca, New aspect of chromite gravity tailings re-processing, Miner. Eng., 14(2001), No. 11, p. 1527.

    Article  Google Scholar 

  5. S.K. Tripathy, Y.R. Murthy, and V. Singh, Characterisation and separation studies of Indian chromite beneficiation plant tailing, Int. J. Miner. Process., 122(2013), p. 47.

    Article  Google Scholar 

  6. C.V.G.K. Murthy, R. Sripriya, and P.V.T. Rao, Enrichment of Cr/Fe ratio in chromite concentrate produced in chromite beneficiation plant at Tata Steel, Trans. Ind. Inst. Met., 47(1994), No. 6, p. 413.

    Google Scholar 

  7. S.K. Tripathy and Y.R. Murthy, Modeling and optimization of spiral concentrator for separation of ultrafine chromite, Powder Technol., 221(2012), p. 387.

    Article  Google Scholar 

  8. C.R. Kumar, S. Tripathy, and D.S. Rao, Characterisation and pre-concentration of chromite values from plant tailings using floatex density separator, J. Miner. Mater. Charact. Eng., 8(2009), No. 5, p. 367.

    Google Scholar 

  9. S.K. Tripathy, Y. Ramamurthy, and V. Singh, Recovery of chromite values from plant tailings by gravity concentration, J. Miner. Mater. Charact. Eng., 10(2011), No. 1, p. 13.

    Google Scholar 

  10. D.V. Subba Rao, Mineral Beneficiation: a Concise Basic Course, CRC Press, Boca Raton, 2011, p. 109.

    Book  Google Scholar 

  11. J. Svoboda, Magnetic Methods for the Treatment of Minerals, Elsevier, Amsterdam, 1987, p. 50.

    Google Scholar 

  12. N.D. Rao, S.M. Rao, G.U. Kapure, R.K. Das, V. Tathavadkar, A Process for Production of Chemical-Grade Chromite Concentrates from Chromite Ore, Indian Patent, Appl. 339/KOL/2005, 2011.

    Google Scholar 

  13. R.B. Rao, B. Das, and S.R.S. Sastri, Improving grade of Indian chromite ores by high-gradient magnetic separation, Magn. Electr. Sep., 8(1997), p. 175.

    Article  Google Scholar 

  14. O.K. Abubakre, R.A. Muriana, and P.N. Nwokike, Characterization and beneficiation of Anka chromite ore using magnetic separation process, J. Miner. Mater. Charact. Eng., 6(2007), No. 2, p.143.

    Google Scholar 

  15. M. Dobbins, J. Domenico, and P. Dunn, A discussion of magnetic separation techniques for concentrating ilmenite and chromite ores, [in] The 6th International Heavy Minerals Conference’ Back to Basics’, The Southern African Institute of Mining and Metallurgy, 2007, p. 197.

    Google Scholar 

  16. Y.M. Wang, R.J. Pugh, and E. Forssberg, Carrier coagulation of chromite fines in wet magnetic separation, Magn. Electr. Sep., 5(1993), No. 1, p. 33.

    Article  Google Scholar 

  17. S.K. Tripathy, V. Singh, and Y. Ramamurthy, Improvement in Cr:Fe ratio of Indian chromite ore for ferro chrome production, Int. J. Min. Eng. Miner. Process., 1(2012), No. 3, p. 101.

    Google Scholar 

  18. W.C. Hood and R.L.P. Custer, Mass magnetic susceptibilities of some trioctahedral micas, Am. Mineral., 52(1967), p. 1643.

    Google Scholar 

  19. V. Singh, S. Nag, and S.K. Tripathy, Particle flow modeling of dry induced roll magnetic separator, Powder Technal., 244(2013), p. 85.

    Article  Google Scholar 

  20. S.K. Tripathy, V. Singh, Y.R. Murthy, V. Tathavadkar, P.K. Banerjee, and N. Suresh, Particle characterisation and magnetic separation behaviour of iron bearing minerals in Sukinda chromite ores, [in] XXVI International Mineral Processing Congress (IMPC) 2012 Proceedings, New Delhi, 2012, p. 5521.

    Google Scholar 

  21. S.K. Tripathy, P.K. Banerjee, and N. Suresh, Separation analysis of dry high intensity induced roll magnetic separator for concentration of hematite fines, Powder Technol., 264(2014), p. 527.

    Article  Google Scholar 

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Authors and Affiliations

  1. Research and Development Division, Tata Steel Ltd., Jamshedpur, India

    Sunil Kumar Tripathy & P. K. Banerjee

  2. Fuel and Mineral Engineering Dept., Indian School of Mines, Dhanbad, India

    Nikkam Suresh

Authors
  1. Sunil Kumar Tripathy
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  2. P. K. Banerjee
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  3. Nikkam Suresh
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Correspondence to Sunil Kumar Tripathy.

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Tripathy, S.K., Banerjee, P.K. & Suresh, N. Magnetic separation studies on ferruginous chromite fine to enhance Cr:Fe ratio. Int J Miner Metall Mater 22, 217–224 (2015). https://doi.org/10.1007/s12613-015-1064-4

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  • DOI: https://doi.org/10.1007/s12613-015-1064-4

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