Supervisor

Professor Vladimiros G. Papangelakis

Dipl. Eng. (Athens), M.Eng., Ph.D. (McGill), Fellow CIM

Department of Chemical Engineering & Applied Chemistry http://www.Chem-Eng.utoronto.ca

Department of Materials Science and Engineering http://www.mse.utoronto.ca

Lassonde Institute of Mining http://www.lassondeinstitute.utoronto.ca/

University of Toronto
200 College Street, Toronto, Ontario, Canada M5S 3E5
Room: WB225
Tel: (416) 978-1093
Fax: (416) 978-8605

e-mail: vladimiros.papangelakis*at*utoronto.ca

Memberships

Canadian Institute of Mining, Metallurgy and Petroleum (CIM)
American Chemical Society (ACS)
Technical Chamber of Greece (TCE)
Hellenic Canadian Academic Association of Ontario (HCAAO)

Research Interests

Aqueous and Environmental Process Engineering

Aqueous processes are employed in the metals and minerals industry to extract metals from natural and waste resources (hydrometallurgy). Intelligent application of water chemistry can meet the ever-increasing requirements for suitable development of clean environment, product quality and low processing cost.

Areas of expertise:

Aqueous process engineering; chemical process metallurgy, hydrometallurgy; process modelling; electrolyte solution chemistry; mineral-water interfaces; recycling of inorganic wastes; environmental remediation from mining and metallurgical activities.

Selected Publications:

  1. Georgiana A. Moldoveanu and Vladimiros G. Papangelakis, “Effects of thermal pre-treatment and ore dryness on the recovery of lanthanides from ion-adsorption clays”, Hydrometallurgy, 158 (2015), 180-185.
  2. Georgiana A. Moldoveanu and Vladimiros G. Papangelakis, “Strategies for calcium sulphate scale control in hydrometallurgical processes at 80 °C”, Hydrometallurgy, 157 (2015).  133-139.
  3. G.A. Moldoveanu, V.G. Papangelakis, “Recovery of rare earth elements adsorbed on clay minerals: II. Leaching with Ammonium Sulphate,” Hydrometallurgy, 131-132 (2013), 158-166.
  4. Georgiana A. Moldoveanu, Vladimiros G. Papangelakis, “Recovery of rare earth elements adsorbed on clay minerals: I. Desorption mechanism,” Hydrometallurgy 117118 (2012) 7178.
  5. I.V. Bylina, S.C. Mojumdar, V.G. Papangelakis, “Effect of storage time on the pressure oxidation enthalpy of pyrite,” Journal of Thermal Analysis and Calorimetry (2012): 1-7, April 06, 2012.
  6. Ilya Perederiy, V. G. Papangelakis, Mohamed Buarzaiga, Indje Mihaylov, “Co-treatment of converter slag and pyrrhotite tailings via high pressure oxidative leaching,” Journal of Hazardous Materials, 194 (2011), 399–406.
  7. G. Azimi, V.G. Papangelakis, “Mechanism and Kinetics of gypsum-anhydrite transformation in Aqueous Electrolyte Solutions,” Hydrometallurgy, 108 (2011), Description: http://www.sciencedirect.com/scidirimg/clear.gif122-129.
  8. R.J. Mathew, V.G. Papangelakis, E. Guerra, “Interfacial phenomena in the sulphur-polytetrafluoroethylene system under hydrothermal conditions,” Minerals Engineering, 23 (2010) 1113-1119.
  9. Z. Jankovic, V.G. Papangelakis, “Measurement of pH in high-temperature nickel laterite pressure acid leach process solutions, Hydrometallurgy 105 (2010), 155-160.
  10. G. Azimi, V.G. Papangelakis, “Solubility of gypsum and anhydrite in simulated laterite pressure acid leach solutions up to 250°C,” Hydrometallurgy, 102, 1–13, 2010.
  11. D. Georgiou, V. G. Papangelakis, “Behaviour of cobalt during sulphuric acid pressure leaching of a limonitic laterite,” Hydrometallurgy, 100, 35–40, 2009.
  12. G. Azimi, V.G. Papangelakis, “Thermodynamic modeling and experimental measurement of calcium sulfate in complex aqueous solutions,” Fluid Phase Equilibria, 290, 88–94, 2010.
  13. G. Azimi, V.G. Papangelakis, and J.E. Dutrizac, “Development of a Chemical Model for the Solubility of Calcium Sulphate in Zinc Processing Solutions,” Canadian Metallurgical Quarterly, Vol. 49 (1), 2010.
  14. D. Georgiou, V. G. Papangelakis, “Behaviour of cobalt during sulphuric acid pressure leaching of a limonitic laterite,” Hydrometallurgy, 100, 35–40, 2009.
  15. M.W. Jones, V.G. Papangelakis, and J.D.T. Steyl, “Kieserite Solubility in the Aqueous FeCl3 + MgCl2 + HCl System between (338 and 378) K,” J. Chem. Eng. Data, 54 (7), 2009, pp 1986–1990.
  16. Z. Jankovic, V.G. Papangelakis and S.N. Lvov, “Effect of nickel sulphate and magnesium sulphate on pH of sulphuric acid solutions at elevated temperatures,” J. Appl. Electrochem., 39(6), 2009, 751.
  17. M. Huang and V.G. Papangelakis, “High Temperature Conductivity Measurements of  Concentrated NaCl-H2SO4-H2O Solutions up to 250 °C”, Ind. Eng. Chem. Res., 2009, 48, 2781–2785.
  18. I. Bylina, L. Trevani, S. C. Mojumdar, P. Tremaine and V. G. Papangelakis, “Measurement of Reaction Enthalpy During Pressure Oxidation Of Sulphide Minerals,” Journal of Thermal Analysis and Calorimetry, Vol. 96 ,2009, 1, 117–124.
  19. Yunjiao Li, Ilya Perederiy, Vladimiros G. Papangelakis, “High Pressure Oxidative Acid Leaching of Nickel Smelter Slag: Characterization of Feed and Residue” Hydrometallurgy, 97 (3), 185-193, Jul 2009.
  20. M. Huang and V.G. Papangelakis, “On-Line Free Acidity Measurements of Solutions Containing Base Metals,” Canadian Metallurgical Quarterly, Special Issue, V. 47, No. 3, 2008, pp. 269-276.
  21. G. Azimi, V.G. Papangelakis and J.E. Dutrizac, “Development of an MSE-Based Chemical Model for the Solubility of Calcium Sulphate in Mixed Chloride-Sulphate Solutions,” Fluid Phase Equilibria, 266, 172-186, 2008.
  22. Yunjiao Li, Ilya Perederiy, Vladimiros G. Papangelakis, “Cleaning of waste smelter slags and recovery of valuable metals by pressure oxidative leaching” Journal of Hazardous Materials 152, 607–615, 2008.
  23. G. Azimi, V.G. Papangelakis and J.E. Dutrizac, “Modelling of Calcium Sulphate Solubility in Concentrated Multi-Component Sulphate Solutions,” Fluid Phase Equilibria, 260, 300-315, 2007.
  24. J. F. Adams, and V.G. Papangelakis, “Optimum Reactor Configuration for Prevention of Gypsum Scaling During Continuous Sulphuric Acid Neutralization,” Hydrometallurgy, 89, 269-278, 2007.
  25. H. Ming and V.G. Papangelakis, “Electrical Conductivity of Concentrated Al2(SO4)3-MgSO4-H2SO4 Aqueous Solutions up to 250 °C”, Industrial and Engineering Chemistry Research, 46, 1598 – 1604, 2007.
  26. M. Baghalha, V.G. Papangelakis, W. Curlook, “Factors Affecting the Leachability of Ni/Co/Cu Slags at High Temperature,” Hydrometallurgy, 85, 42 – 52, 2007.