Kinetics of barite reduction from refractory barite-sulphide ore
Keywords:
refractory sulphide–barite ore, kinetic of barite reductionAbstract
Refractory sulphide-barite ore was reduced with carbon in order to release lead, zinc, and copper sulphide from barite-pyrite base. Mineralogical investigations showed that due to the complex structural-textural relationships of lead, copper and zinc minerals with gangue minerals, it is not possible to enrich the ore using the conventional methods of mineral processing. The influence of temperature and time was studied to optimize the conditions, and to determine the kinetics of the barite reduction. The maximum removal of barite from ore was 96.7% at 900oC after 180 min. Chemically controlled kinetic model showed the best compliance with the experimental data. An activation energy of 142 kJ/mol was found.
References
R. VraĐar, L.Å aljić, M.Sokić, V.Matković, S.Radosavljević: Scand J Metall, 32 (2003) 289-295.
S.Radosavljević, R. VraĐar, L.Å aljić, V.Matković, M.Sokić: J Min Metall SectA-Min 34, 1-2 (1998) 1-8.
V.Matković, S.Radosavljević, R.VraĐar, M.Sokić, B.Marković, In: Proceedings of 3rd Conference of Macedonian Metallurgists Union with International Participation “Metallurgy 2000â€, Ohrid, 2000, 371-376.
H.R. Watling: Hydrometallurgy, 140 (2013) 163-180.
Y. Li, N. Kawashima, J. Li, A.P. Chandra, A.R. Gerson: Adv Colloid Interfac, 197-198 (2013) 1-32.
M. Sokić, V. Matković, B. Marković, V. Manojlović, N. Å trbac, D. Živković, Ž. Kamberović: Metall Mater Eng, 22, 2 (2016) 81-89.
A. Akcil, H. Ciftci: Int J Miner Process, 71 (2003) 233-246.
T. Agacayak, A. Aras, S.Aydogan, M.Erdemoglu: Physicochem Probl Miner Process, 50, 2 (2014) 657-666.
M. Sokić, B. Marković, D. Živković: Hydrometallurgy, 95 (2009) 273-279.
M. Sokić, B. Marković, V. Matković, D. Živković, N. Å trbac, J. Stojanović: J Min Metall SectB-Metall, 48 (2) B (2012) 185-195.
M. Sokić, S. Radosavljević, B. Marković, V. Matković, N. Å trbac, Ž. Kamberović, D. Živković, Metal Mater Eng, 20 (2014) 53-60.
R.G. McDonald, D.M. Muir: Hydrometallurgy, 86 (2007) 191-205.
T.J.Harvey, W.T.Yen: Miner Eng, 11, 1 (1998) 1-21.
K. Othmer: Encyclopedia of Chemical Technology, Wiley, New York, 1991,pp. 457-479.
M. Sh. Bafghi, A. Yarahmadi, A. Ahmadi, H. Mehrjoo: Iranian Journal of Materials Science & Engineering 8, 3 (2011) 1-7.
R. Kresse, U. Baudis, P. Jager, H. Riechers, H. Wagner, J. Winkler, H. Wolf: Ullmann Encyclopedia of Industrial Chemistry, Barium and Barium compounds, http://onlinelibrary.wiley.com/doi/10.1002/143 5007.a03_325.publ2/pdf.
A. Salem, Y. Tavakkoli Osqouei: Mater Res Bull: 44 (2009) 1489-1493.
H.J. Sharp, J. Amer. Ceram. Soc., 49, 1966, 379.
Downloads
Published
How to Cite
Issue
Section
License
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their published articles online (e.g., in institutional repositories or on their website, social networks like ResearchGate or Academia), as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
Except where otherwise noted, the content on this site is licensed under a Creative Commons Attribution 4.0 International License.