Geospatial Analysis and Beneficiation Studies on Iron Ores of Sandur Schist Belt, Dharwar Craton, India

Document Type : Research Article

Authors

1 Department of Mineral Processing, VSKU PG Centre Nandihalli-Sandur, Karnataka, India

2 Department of Applied Geology, VSKU PG Centre Nandihali-Sandur, Karnataka, India

Abstract

Depletion of iron ore grade makes it predictable to utilize the existing low-grade iron ores with suitable mineral processing techniques to meet the present requirement and demand. Economic beneficiation of these low-grade iron ores remains a challenging task. To find out an effective way of data acquisition, data management, and processing of mineral resources with an in-depth modern and innovative technology like geospatial analysis technique is found essential. A geospatial analysis as a direct adjunct to the field and more recently geo-informatics has played an important role in the study of mineral resource identification and its beneficiation. The present study focused on the diagnostic processing characteristics of iron ores of the Nandihalli area of the Sandur schist belt using geo-informatics. Using Geo-informatics the iron ore samples were drawn from spatial location points. The mineralogical studies reveal that hematite is the major iron-bearing mineral magnetite as minor iron-bearing mineral and silica & alumina as the gangue minerals. Beneficiation studies involving crushing, classification, de-sliming, spiral concentrate, and HGMS (SLon) are tested for the production of quality concentrates. The results indicated that iron ore samples of the Nandihalli area contain 59.78% Fe (T), 4.49% SiO2 and 4.39% Al2O3 has obtained different products namely sinter grade concentrate (60.98% Fe, 2.83% SiO2, and 3.72% Al2O3) with 70% weight recovery and pellet grade concentrate (62.39% Fe, 1.93% SiO2 and 2.02% Al2O3) with 15% weight recovery.

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References

  1. Araujo, A. C., Viana, P.R.M., Peres, A.E.C., (2005). “Reagents in iron ores flotation.” Minerals Engineering 18: 219–222.
  2. Basavaraj, H., Nijagunappa, R., (2011). "Development of Groundwater Potential Zone in North-Karnataka Semi-Arid Region Using Geoinformatics Technology." Universal Journal of Environmental Research and Technology, 1(4): 500-514.
  3. Basavaraj, H., Nijagunappa, R (2011). "Geoinformatics Technology Application in North Karnataka for Water Resources Management." Universal Journal of Environmental Research and Technology, 1(3).
  4. Basavaraj, H., Nijagunappa, R. (2012). "Geoinformatics Based Decision Support System Tools for Water Resources Management in North Karnataka, India” Indian Journal of Natural Sciences 2(10): 779-791.
  5. Basavaraj H., S., P., (2019). "Geology and Geochemistry Investigation of Banded Iron Formations from Haraginadoni copper Mountain Range of Sandur Greenstone Belt, Dharwar Craton, India." Journal of Emerging Technologies and Innovative Research 6(6): 476-482.
  6. Basavaraj, H. a. N., R., Integrated Publications, 2(2). (2015). "Applications of Geoinformatics in Water Resources Management of Semi-Arid Region, North Karnataka, India." International Journal of geomatics and geosciences 2(2): 371-382.
  7. Chernyshova, I. V. (2000). "Mechanism of Adsorption of Long-Chain Alkylamines on Silicates. A Spectroscopic Study. 1. Quartz. ." Langmuir 16, 8071–8084 16: 8071–8084.
  8. Chernyshova, I. V., Hanumantha Rao, K, Vidyadhar, A., (2000). "Mechanism of Adsorption of Long-Chain Alkylamines on Silicates. A Spectroscopic Study. 1. Quartz. ." Langmuir 16, 8071–8084.
  9. Choi, Y., et al. (2020). "Review of GIS-Based Applications for Mining: Planning, Operation, and Environmental Management." Applied Sciences 10(7): 2266.
  10. Choi, Y., et al. (2020). "Review of GIS-Based Applications for Mining: Planning, Operation, and Environmental Management." Applied Sciences 10(7): 2266.
  11. Das, B., Prakash, S., Mohapatra, B.K., Bhaumik, S.K., and Narasimhan, K.S. (1992). "Beneficiation of iron ore slimes using hydrocyclone." Mineral and Metallurgical Processing, 9(2): 101–103.
  12. Egenhofer, M. J. (1990). "Interaction with Geographic Information Systems via spatial queries." Journal of Visual Languages and Computing 1(4): 389-413.
  13. Houot, R. (1983). "Beneficiation of iron ore by flotation – review of industrial and potential applications." International Journal of mineral processing 10: 183-204.
  14. Houot, R. (1983). "Beneficiation of Iron ore by Flotation -Review of Industrial and Potential applications." International Journal of mineral processing 10: 183–204.
  15. Iyengar, S. (1976). "The stratigraphy, structure and correlation of the Dharwar Supergroup." Geological Survey of India Publication 23: 515-555.
  16. Kayet, N., et al. (2018). "Mapping the distribution of iron ore minerals and spatial correlation with environmental variables in hilltop mining areas." Environmental Earth Sciences (8).
  17. Krishna, S. J. G., Patil, M.R., Rudrappa, C. et al. (2013). "Characterisation and Processing of Some Iron Ores of India. J. Inst. Eng. India Ser. D 94," Journal of Institute of engineers Section D 94: 113–120.
  18. Lima, N. P., Peres, A.E.C., Marques, M.L.S., (2012). "Effect of Slimes on Iron Ores Flotation.” International Journal of Mining Engineering and Mineral Processing 1(2): 43–46.
  19. Lima, N. P., Peres, A.E.C., Marques, M.L.S., (2012). "Effect of Slimes on Iron Ores Flotation.” International Journal of Mining Engineering and Mineral Processing 1 (2): 43–46.
  20. Mishra RN (1976). Iron ore deposits of Bellary-Hospet Region. Proceedings of Symposium of geology of ferrous and ferroalloy minerals: 4549.
  21. Nikolaos, P., Christos, Roumpos, Nikolaos, Stathopoulos, and Aikaterini, Adamb. (2019). "Spatial analysis and evaluation of a coal deposit by coupling AHP & GIS techniques." International Journal of Mining Science and Technology. 29: 943–953.
  22. Prasad, N., Ponomarev, M.A., Mukherjee, S.K., Sengupta, P.K., Roy, P.K., and Gupta, S.K. (1988). Introduction of new technologies for beneficiation of Indian hematite ores, reduction of losses and increase in their quality. . XVI International Mineral Processing Congress.
  23. Roy, A. a. B., AK. (1983). "Stratigraphy and structure of Sandur schist belt, Karnataka." Journal of Geological Survey of India 24(1): 19-28.
  24. Roy, S., Das, A., (2008). "Characterization and processing of low-grade iron ore slime from the Jilling area of India.” Mineral Processing and Extractive Metallurgy Review 29 213–231.
  25. M. Salem., a. E. A. E. G. (2015). “Iron ore prospection East Aswan, Egypt using remote sensing techniques.” The Egyptian Journal of Remote Sensing and Space Sciences 18: 195-206.
  26. Sadasivaiah, M. a. K., SM. (1976). "The occurrence of Aegirine and Riebeckite in the Banded Ferruginious Quartzite of Sanjeevarayanakota. Bellary. Karnataka." Journal of Karnatak University 21: 65-70.
  27. Shobhana Dey, S. P., Mohanta MK, Singh R. (2012). "Utilization of iron ore slimes: a future perspective." Separation Science Technology 47(5).
  28. Song, S., Lu, S., Lopes-Valdivieso, A., (2002). "Magnetic separation of hematite and limonite fines as hydrophobic flocs from iron ores." Minerals Engineering 15: 415–422.
  29. Xiong, D., Liu, S., Chen, J., (1998.). “New technology of pulsating high gradient magnetic separation.” International Journal of Mineral Processing 54: 111–127.
  30. Zeng, W., Dahe, X., (2003). "The latest application of SLon vertical ring and pulsating high-gradient magnetic separator.” Minerals Engineering 16: 563–565.
AUT Journal of Civil Engineering
Volume 5, Issue 3
September 2021
Pages 495-506

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