Selective Leaching of Steel Pollutant Element from Dilband Iron Ore, Pakistan

  • Inamullah Maitlo Department of Metallurgy and Materials Engineering, Dawood University of Engineering and Technology, Karachi.
  • Umair Aftab Department of Metallurgy and Materials Engineering, Dawood University of Engineering and Technology, Karachi.
  • Muhammad Ishaque Abro Department of Metallurgy and Materials Engineering, Mehran University of Engineering and Technology, Jamshoro
  • Muhammad Moazam Baloch Department of Metallurgy and Materials Engineering, Mehran University of Engineering and Technology, Jamshoro
DOI: https://doi.org/10.22581/muet1982.1703.30

Abstract

Dilband Iron ore of Pakistan is lean grade ore which contains sufficient amount of phosphorous bearing mineral called fluorapatite. Since phosphorous is widely acknowledged as steel pollutant and disturbs the blast furnace chemistry, so it needs to be removed effectively from the ore before the smelting operation. Present paper, therefore, aims to provide the results of phosphorous leaching efficiency noted with HCl, HNO3 and H2SO4 reagents. Results showed that H2SO4 leached the phosphorous quite selectively as compared to HCl and HNO3. Henceforth, it was possible to eradicate 49.5, 55.6 and 82.2% P2O5 from -600+212, -212+106, and -106 μm particle size fractions respectively with 1% concentrated H2SO4.The gradual increasing trend of dephosphorization with decreasing the particle size implies that, in finer size fraction liberation of fluorapatite mineral was amplified. Perforation study using SEM (Scanning Electron Microscope) provided supporting evidence in this regard.

Published
Jul 1, 2017
How to Cite
MAITLO, Inamullah et al. Selective Leaching of Steel Pollutant Element from Dilband Iron Ore, Pakistan. Mehran University Research Journal of Engineering and Technology, [S.l.], v. 36, n. 3, p. 757-762, july 2017. ISSN 2413-7219. Available at: <https://publications.muet.edu.pk/index.php/muetrj/article/view/288>. Date accessed: 24 nov. 2024. doi: http://dx.doi.org/10.22581/muet1982.1703.30.
Citation Formats
Issue
Vol 36 No 3 (2017): July Issue
Section
Articles
This is an open Access Article published by Mehran University of Engineering and Technolgy, Jamshoro under CCBY 4.0 International License