SWS Academic Research eLibraryEarth & Planetary Sciences

Scholarly record

DISSOLUTION KINETICS OF LATERITIC IRON ORE IN SULPHURIC ACID MEDIUM

T. Agacayak, V. Zedef

First published: 2009DOI pendingView metrics

Abstract

In this study, dissolution kinetics of iron leaching by sulphuric acid under atmospheric pressure from Karacam (Eskisehir-Turkey) lateritic ore was studied. The effects on the iron reaching rate of stirring speed, sulphuric acid concentration, temperature, particle size, and solid/liquid ratio were investigated. In order to investigate the effects of leaching temperature range of 40–90 °C the shrinking core model was applied by using the results of experiments. Kinetics analysis showed that the iron dissolution from lateritic ore could be described by “surface chemical reaction”. The activation energy (Ea) for the dissolution reaction and Arrhenius constant was calculated.

Publication details

Title
DISSOLUTION KINETICS OF LATERITIC IRON ORE IN SULPHURIC ACID MEDIUM
Authors
T. Agacayak, V. Zedef
Proceedings
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publisher
SGEM Scientific GeoConference
Year
2009
Pages
397-404
SWS Citekey
Agacayak2009139
ISSN
1314-2704
ISBN
954-91818-1-2
Language
en
Publication type
Conference Paper
Keywords
IronKaracamTurkeydissolution kineticsleachingsulphuric acidsurface chemical reaction
References10

  1. Golightly J.P. "Nickeliferous latente deposits", Econ. Geol. 75, pp.7 10-735, 1981.

  2. Georgiou D. V.& Papangelakis G, "Sulphuric acid pressure leaching of a limonitic laterite: chemistry and kinetics" Hydrometallurgy, 49, pp. 23-46, 1998.

  3. Baghalha M. and Papangelakis V.G, "Pressure Acid Leaching of Latentes at 250 &C: A Solution Chemical Model and Its Applications" Metallurgical And Materials Transactions B, 29B, p.945, 1998

  4. Gleeson, S.A., Butt, C.M.R. and Elias, M., "Nickel latérites: a review" SEG Newsletter Soc. Econ. Geosci.. 54., pp.1 1-1 8, 2003.

  5. Coto O., Galizia F., Hernández L, Mañero J. and Donati E., "Cobalt and nickel recoveries from laterite tailings by organic and inorganic bio-acids" Hydrometallurgy, 94, pp. 18-22., 2008.

  6. Olanipekun, E.O., "Kinetics of leaching laterite"Int. J. Miner. Process., 60, pp.9- 14, 2000.

  7. Georgiou, D, "Kinetics of nickel dissolution during sulphuric acid pressure leaching of a limonitic laterite" Department of Chemical Engineering and Applied Chemistry University of Toronto, MSc. Thesis, 1995.

  8. Anderson, W.T., "Reduction studies on low iron lateritic nickel ores" University of Toronto, MSc. Thesis, 1995.

  9. Agacayak, T., 2008., "Karacam (Eskisehir) Lateritik Nikel Cevherinin Fiziksel ve Kimyasal Yontemlerle Zenginlestirilmesi, Selcuk Universitesi, Fen Bilimleri Enstitusu, Doktora Tezi, Konya, Turkiye, 2008.

  10. Habashi, F., "Principles of Extractive Metallurgy", Gordon and Breach, New York, 1. pp. 153-163 1969. [1 1] Levenspiel, 0., "Chemical Reaction Engineering", 2nd ed., 566-586, Jhon Wiley and Sons, New York, USA, 1999.

View or Download full articleAccess options
Full paper accessChoose SWS login, librarian support, or instant article download.

SWS access login

Login as SWS Scientific Committee

Authors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.

For librarian assistance: [email protected]

Purchase Instant Access

48-hour online accessComing soon
Online-only accessComing soon
Download the full article in PDF formatEUR 35
  • Article can be downloaded after successful payment.
  • Article may be used according to SWS library access terms.
  • Article cannot be redistributed.
Get full paper

Back to publication list