Assessment of Reuse Potential of Low-Grade Iron Ore Fines through Beneficiation Routes

Nirlipta P. Nayak*
Department of Petroleum Engineering & Earth Sciences, UPES, Dehradun, Uttrakhand, India.
Periodicity:October - December'2022

Abstract

The iron ore deposits are sedimentary in nature. In 2021, approximately 1.95 billion metric tons of crude steel were produced globally, compared to 2.6 billion metric tons of usable iron ore. Iron ore is the primary source of the iron and steel industries, which in turn are essential to maintaining a strong industrial and economic base. Globally, 86% of the total iron produced is used in steelmaking. The most important iron ore minerals include hematite, magnetite, and taconite. The other iron ore minerals include goethite, laterite, etc. Hematite and magnetite are most commonly exploited for their iron values. Considering the non-renewable nature of iron ore, there is a paradigm shift towards the upgrading and beneficiation of low-grade iron ore. The widely accepted techniques for beneficiation include jigging, magnetic separation, enhanced gravity separation, froth flotation, etc. Owing to density contrast, iron can be separated from the gangue in simple jigging cycles. The electromagnetic laboratory-scale Wet High Intensity Magnetic Separator (WHIMS) removes fine magnetics and para-magnetics from mineral slurries. The physical and chemical properties of the ore mineral, as well as their mutual relationship, have a large impact on the beneficiation efficiency. In most of the processing units, the small, dense particles report to the tailing fraction, causing a significant loss in ore values. In such challenging cases, the enhanced gravity technique is useful. It is a combination of centrifugal force and gravitational force that facilitates the separation of low-density ore minerals and gangue. The paper focuses on the importance of a characterization study for the success of beneficiation.

Keywords

Iron Ore, Gangue, Liberation Analysis, Magnetic Separation, WHIMS.

How to Cite this Article?

Nayak, N. P. (2022). Assessment of Reuse Potential of Low-Grade Iron Ore Fines through Beneficiation Routes. i-manager’s Journal on Material Science, 10(3), 30-37.

References

[1]. Biswas, A. K. (2011). Principles of Blast Furnace Ironmaking: Theory and Practice. SBA Publications, Calcutta, (pp. 528).
[2]. Muwanguzi, A. J., Karasev, A. V., Byaruhanga, J. K., & Jönsson, P. G. (2012). Characterization of chemical composition and microstructure of natural iron ore from Muko deposits. International Scholarly Research Notices, 2012, 1-10. https://doi.org/10.5402/2012/174803
[3]. Nayak, N. P. (2015). Characterisation Driven Processing of Indian Sub-Marginal Grade of Iron Ore for Value Addition (Doctoral Dissertation, National Institute of Technology, Rourkela).
[4]. Taylor, D., Dalstra, H. J., Harding, A. E., Broadbent, G. C., & Barley, M. E. (2001). Genesis of high-grade hematite orebodies of the Hamersley Province, Western Australia. Economic Geology, 96(4), 837-873. https://doi.org/10.2113/gsecongeo.96.4.837
[5]. Karmazin, V. V., Bikbov, M. A., & Bikbov, A. A. (2002). The energy saving technology of beneficiation of iron ore. Magnetic and Electrical Separation, 11(4), 211-224. https://doi.org/10.1080/1055691021000062813
[6]. Srivastava, M. P., Pan, S. K., Prasad, N., & Mishra, B. K. (2001). Characterization and processing of iron ore fines of Kiriburu deposit of India. International Journal of Mineral Processing, 61(2), 93-107. https://doi.org/10.1016/S0301-7516(00)00030-2
[7]. Svoboda, J. (1994). The effect of magnetic field strenght on the efficiency of magnetic separation. Minerals Engineering, 7(5-6), 747-757. https://doi.org/10.1016/0892-6875(94)90104-X
[8]. Roy, S., & Das, A. (2009). Nature of low-grade Indian iron ores and the prospects of their enrichment through gravity separation. Mining, Metallurgy & Exploration, 26(3), 141-150. https://doi.org/10.1007/BF03402227
[9]. Nayak, N. P. (2013). Mineralogical constraints in beneficiation of low grade iron ores of barsua, Eastern India. International Journal of Engineering and Innovative Technology, 3(5), 109-113.
[10]. Nayak, N. P. (2008). Characterization and Utilization of Solid Wastes Generated from Bhilai Steel Plant (Doctoral Dissertation, National Institute of Technology, Rourkela).
[11]. Saha, A. K. (1994). Crustal Evolution of Singhbhum- North Orissa, Eastern India. Geological society of India, (pp. 341).
[12]. Quast, K. B. (2000). A review of hematite flotation using 12-carbon chain collectors. Minerals Engineering, 13(13), 1361-1376. https://doi.org/10.1016/S0892-6875(00)00119-9
[13]. Rachappa, S., & Prakash, Y. (2015). Iron ore recovery from low grade by using advance methods. Procedia Earth and Planetary Science, 11, 195-197. https://doi.org/10.1016/j.proeps.2015.06.024
[14]. Lascelles, D. F. (2007). Genesis of the Koolyanobbing iron ore deposits, Yilgarn Province, WA, Australia. Applied Earth Science, 116(2), 86-93. https://doi.org/10.1179/174327507X167055
[15]. Sivamohan, R. (1990). The problem of recovering very fine particles in mineral processing—a review. International Journal of Mineral Processing, 28(3-4), 247-288. https://doi.org/10.1016/0301-7516(90)90046-2
[16]. Nayak, N. P. (2021). Design of beneficiation scheme of banded hematite jasper using mineralogical characterization study. Materials Today: Proceedings, 47, 5364-5368. https://doi.org/10.1016/j.matpr.2021.06.086
If you have access to this article please login to view the article or kindly login to purchase the article

Purchase Instant Access

Single Article

North Americas,UK,
Middle East,Europe
India Rest of world
USD EUR INR USD-ROW
Pdf 35 35 200 20
Online 35 35 200 15
Pdf & Online 35 35 400 25

Options for accessing this content:
  • If you would like institutional access to this content, please recommend the title to your librarian.
    Library Recommendation Form
  • If you already have i-manager's user account: Login above and proceed to purchase the article.
  • New Users: Please register, then proceed to purchase the article.