The optimization of low-magnesium zinc concentrate production process

• Authors: Andrzej Jarosiński , Katarzyna Fela
• Languages of publication: EN

Abstracts

EN

In this paper the result of the study on chemical leaching of zinc concentrate with H2SO4 solution was presented. The object of this work was to assess the effect of some parameters such as acid concentration, the leaching agent amount /stoichiometry amount or excess of acid were applied/, reaction time and temperature on the process. The investigation was performed as a active experiment according to Hartley's plan. The process optimisation procedure was based on the fuzzy logic system. Mainly, the parameters such as magnesium leaching efficiency and zinc losses were taken into account. It was stated that the highest magnesium leaching efficiency of 77.8% with low Zn-losses was reached when H2SO4 solution concentration was 2.5% for 20%-excess of acid, at temperature 25°C and process time of 1 hour.

Keywords

EN

Zn-concentrate; magnesium removal; chemical treatment; acid leaching

• Publisher: De Gruyter Open
• Journal: Polish Journal of Chemical Technology
• Year: 2009
• Volume: 11
• Issue: 1
• Pages: 20-23

Dates

published

1 - 1 - 2009

online

6 - 4 - 2009

Contributors

author

Andrzej Jarosiński

• Institute of Inorganic Chemistry and Technology, Cracow University of Technology, ul. Warszawska 24, 31-155 Kraków, Poland

author

Katarzyna Fela

• Institute of Inorganic Chemistry and Technology, Cracow University of Technology, ul. Warszawska 24, 31-155 Kraków, Poland

References

• Bolewski, A. (2004), Balance of Poland and World Minerals Economy 1998 - 2000. Polish Academy of Sciences: Mineral and Energy Economy Research Institute, Cracow, Poland. (in Polish).
• Polish Geological Institute (2003), Map of zinc and lead ores deposits of Poland, from
• Gruszczyk, H. & Strzelecka-Smakowska, B. (1978). Minerals of World, Zinc - Zn, Lead - Pb, Cadmium - Cd, Warsaw, Poland: Wyd. Geol. (in Polish).
• Sanak-Rydlewska, S. & Małysa, E. (1996). Purification of zinc blende concentrate by chemical/flotation treatment of remove magnesium. Archives of Metallurgy 41(4), 435 - 440.
• Małysa, E. & Sanak-Rydlewska, S. (1999). Application of chemical methods in processing of zinc -lead ores. In New Trends in Mineral Processing (Part II), 24 - 26 June 1999 (pp. 367 - 373). Ostrava, Czech Republic: VSB-TU Ostrava.
• Jarosiński, A. & Fela, K. (2007), Application of sulphuric (VI) acid for magnesium removal from zinc concentrate. Pol. J. Chem. Tech. 9(2), 19-22. DOI: 10.2478/v10026-007-0017-8.[Crossref]
• Jarosinski, A. & Madejska, L. (2007), Magnesium removal from zinc concentrates by leaching. Pol. J. Environ. Stud. 16(3B), 196 - 199.
• Fela, K., Jarosiński, A., Kozak A. & Pietraszek A. (2007). Comparative study of magnesium removal from zinc concentrate. Recyklace Odpadu XI, 6 - 7 December 2007 (pp. 71 - 76). Kosice, Slovakia: VSB-TU Ostrava.
• Jarosiński, A. & Fela, K. (2008). Acid leaching of zinc sulphide concentrate from Silesia-Cracow deposit of Poland. 12thConference on Environment and Mineral Processing: Proceedings (Part II), 5 - 7 June 2008 (pp. 49 - 54). Ostrava, Czech Republic: VSB-TU Ostrava.
• Singh, V. (1996). Technological innovation in the zinc electrolyte purification process of a hydrometallurgical zinc plant through reduction in zinc dust consumption. Hydrometallurgy 40, 247 - 262.
• Booster, J.L., van Sandwijk, A. & Reuter M.A. (2000). Magnesium removal in the electrolytic zinc industry. Minerals Engineering 13(5), 517 - 526.[Crossref]
• Górecka, R. (1998). Theory and technique of experiment (handbook). Cracow, Poland: Cracow University of Technology.
• Zadeh, L. (1965). Fuzzy sets, Information and control. 8, 338 - 353.
• Mendel, J. (1995). Fuzzy logic systems for engineering: A tutorial. Proceedings of the IEEE 83(3), 345 - 377.[Crossref]
• Bałaziński, M. (1997). Fuzzy logic, Biuletyn SIP 1, 1 - 5. (in Polish).

Identifiers

DOI

10.2478/v10026-009-0006-1