Referred Conference Papers

  1. Tianyu Zhao, Harshit Mahandra, Rajashekhar Marthi, Michael Traversy, Yeonuk Choi, Ahmad Ghahreman*; Process development for selective recovery of lithium from black mass of spent LiFePO4 batteries; (accepted for presentation in 61st Annual Conference of Metallurgists (COM), Canada, August 21 – 24 (2022)).
  2. Sugyeong Lee, Charlotte E. Gibson, and Ahmad Ghahreman, “ROLE OF MIBC ON THE KINETICS OF CARBONACEOUS MATTER FLOTATION FROM GOLD ORES”, 60th Annual Conference of Metallurgists (COM), Canada, August 17 – 19 (2021).
  3. Fariborz Faraji, Harshit Mahandra, Ahmad Ghahreman, “Evaluation of different techniques for cyanide measurement from biological samples in gold bio-cyanidation”, 60th Annual Conference of Metallurgists (COM), Canada, August 17 – 19 (2021).
  4. Fariborz Faraji, Harshit Mahandra, Ahmad Ghahreman “Distillation of biogenic cyanide generated by Bacillus megaterium for efficient gold recovery”, World Gold Conference, jointly by The Southern African Institute of Mining and Metallurgy (SAIMM), the Canadian Institute of Mining, Metallurgy and Petroleum (CIM,) and the Australasian Institute of Mining and Metallurgy (AusIMM), South Africa, August 16 and 17 (2021).
  5. Harshit Mahandra, Fariborz Faraji, Ahmad Ghahreman “Solvent extraction of gold from thiosulphate solution using phosphonium ionic liquid”, World Gold Conference, jointly by The Southern African Institute of Mining and Metallurgy (SAIMM), the Canadian Institute of Mining, Metallurgy and Petroleum (CIM,) and the Australasian Institute of Mining and Metallurgy (AusIMM), South Africa, August 16 and 17 (2021).
  6. Atefeh Azizitorghabeh, Harshit Mahandra, Juliana Ramsay, Ahmad Ghahreman. “Synergistic effect of Acidithiobacillus ferrooxidans, Leptospirillum ferrooxidans and Acidithiobacillus thiooxidans on oxidation of refractory gold ore”. 60th Annual Conference of Metallurgists (COM), Canada. August 17-19 (2021)
  7. Guillermo Alvial-Hein, Harshit Mahandra, Ahmad Ghahreman. “Potential of Ionic Liquids in Solvent Extraction for the Recovery of Cobalt and Nickel from Waste Matrices: A Review”. 60th Annual Conference of Metallurgists (COM), Canada. August 17-19 (2021)
  8. Chengqian (Charles) Wu, Ahmad Ghahreman, ” Parameter Study of the Activated Carbon-Catalyzed Arsenic Oxidation Process Under Dynamic and Continuous Conditions” 58th  Annual Conference of Metallurgists (COM) Hosting Copper 2019, Vancouver, Canada, August 18-21, (2019).
  9. Lin Li, Ahmad Ghahreman, “The Interaction of Synthetic Chalcopyrite with Silver and Cupric Ions in Sulfuric Acid Solution”, 58th  Annual Conference of Metallurgists (COM) Hosting Copper 2019, Vancouver, Canada, August 18-21, (2019)
  10. Fazel Jahromi, Ahmad Ghahreman, “Understanding The Arsenic In-Situ Precipitation During The AF5 Catalyzed Atmospheric Sulfide Leaching Process”, 24th Annual  Nickel-Cobalt-Copper Conference, Perth, Australia, May 20-22, (2019)

  11. Manochehr Oliazadeh, Ahmad Ghahreman, “Gold Recovery Improvement In Heap Leaching Operations”, 51st Annual Canadian Mineral Processors Operators Conference, Ottawa, Ontario, January 22-24, (2019).

  12. Ahmad Ghahreman, “Recent Developments in Gold Leaching Technologies with Alternative Lixiviants to Cyanide”, 10th International Seminar of Process Hydrometallurgy (HydroProcess 2018), Santiago, Chile, June 20-22, (2018).

  13. Denver Cowan, Ahmad Ghahreman, “Atmospheric Oxidation of Pyrite in the Presence of Lewatit® AF 5: A Parameters Study”, 10th International Seminar of Process Hydrometallurgy (HydroProcess 2018), Santiago, Chile, June 20-22, (2018).

  14. Denver Cowan, Ahmad Ghahreman, “Carbon catalyst assisted atmospheric oxidation of pyrite with high elemental sulphur yield in ferric sulphate acidic media”, World Gold Conference 2017 (WGC 2017), Vancouver, BC, August 27-30, (2017).

  15. Denver Cowan, Ahmad Ghahreman, “A preliminary comparison between a granular coconut shell based activated carbon and LEWATIT® AF 5 in the application of gold-bearing pyrite oxidation in acidic ferric sulfate media”, World Gold Conference 2017 (WGC 2017), Vancouver, BC, August 27-30, (2017).

  16. Rina Kim, Ahmad Ghahreman, Michel Epiney, “Electrochemical investigation of the effect of dissolved oxygen on gold cyanidation in presence of sulfidic refractory ores”, World Gold Conference 2017 (WGC 2017), Vancouver, BC, August 27-30, (2017).

  17. Rina Kim, Ahmad Ghahreman, Michel Epiney, “Effect of dissolved oxygen on pre-oxidation and cyanidation of gold ore containing sulfide minerals: a review”, World Gold Conference 2017 (WGC 2017), Vancouver, BC, August 27-30, (2017).

  18. Lin Li, Ahmad Ghahreman, “Effect of temperature on kinetic properties of the Fe(II)/Fe(III) redox couple on the surface of pyrite”, Conference of Metallurgists 2017 (COM 2017), Vancouver, BC, August 27-30, (2017).

  19. Fazel Jahromi, Ahmad Ghahreman, “Quantification and speciation of copper, arsenic and iron in atmospheric leaching of enargite and chalcopyrite in presence of activated carbon and AF5”, Conference of Metallurgists 2017 (COM 2017), Vancouver, BC, August 27-30, (2017).

  20. Fazel Jahromi, Ahmad Ghahreman, “Adsorption and oxidation properties of activated carbon and AF 5 in the copper sulfide minerals leaching process”, Conference of Metallurgists 2017 (COM 2017), Vancouver, BC, August 27-30, (2017).

  21. James McNeice, Ahmad Ghahreman, “The kinetics of Ce(III) oxidation with different oxidants”, Conference of Metallurgists 2017 (COM 2017), Vancouver, BC, August 27-30, (2017).

  22. Alexander Cushing, Ahmad Ghahreman, Sadan Kelebek, “Electrochemical characteristics of iron sulphide minerals in the presence of TETA, SMBS and the case for their joint action”, Conference of Metallurgists 2017 (COM 2017), Vancouver, BC, August 27-30, (2017).

  23. Saeid Karimi, Ahmad Ghahreman, Freshteh Rashchi, Javad Moghaddam, “Electrochemical kinetics of ferric-ferrous reduction-oxidation on sphalerite”, Conference of Metallurgists 2017 (COM 2017), Vancouver, BC, August 27-30, (2017).

  24. Ahmad Ghahreman, “Recent updates on the hydrometallurgical processing of primary copper sulfides”, 9th International Seminar of Process Hydrometallurgy (HydroProcess 2017), Santiago, Chile, June 21-23, (2017) (INVITED PLENARY SPEAKER).

  25. Rebecca Radzinski, Ahmad Ghahreman, “Insights on the behavior o arsenic species on activated carbon during catalytic arsenic oxidation”, 9th International Seminar of Process Hydrometallurgy (HydroProcess 2017), Santiago, Chile, June 21-23, (2017).

  26. Rebecca Radzinski, A. Nazari, Ahmad Ghahreman, “Activated-carbon catalyzed arsenic oxidation: formation of hydrogen peroxide in acidic solutions”, Hydroprocess 2016 Conference, Santiago, Chile, 15-17 June, (2016).

  27. Choi, A. Ghahremaninezhad, “A novel method for pre-treatment of gold-bearing oxide ores”, World Gold Conference 2015, Misty Hills, Gauteng, South Africa, 29 September–1 October 2015.

  28. Fazel G. Jahromi, Ahmad Ghahremaninezhad, “Atmospheric leaching of enargite in chloride media”, COM 2015 – Toronto, ON, August 2015.

  29. Rebecca Radzinski, Ahmad Ghahremaninezhad, “Activated carbon-assisted oxidation of arsenic species in process solutions and waste waters: the oxidation reaction mechanism”, COM 2015 – Toronto, ON, August 2015.

  30. Ghahremaninezhad, D. Dixon and E. Asselin, “New insights into the electrochemical processes at the chalcopyrite/solution interface”, Hydrometallurgy 2014 – MetSoc, Victoria, BC, June 2014.

  31. Choi, A. Ghahremaninezhad, N. Ahern, “A novel and low cost method for arsenic oxidation”, COM 2014 – Vancouver, BC, September 2014.

  32. Ghahremaninezhad, E. Asselin and D. Dixon, “Cathodic reactions on oxidized chalcopyrite electrode surface”, Electrometallurgy 2012 – TMS Conference, Orlando, Florida, March 2012.

  33. Ghahremaninezhad, E. Asselin and D. Dixon, “An Electrochemical Model for Acidic Dissolution of Chalcopyrite (CuFeS2) Mineral”, Copper 2010 – GDMB, Hamburg, Germany, June 2010.

  34. Ghahremaninezhad, E. Asselin and D. Dixon, “On the Dissolution Sequence of Pyrrhotite: In-Situ Electrochemical Analysis of Surface Layers”, The 48th Annual Conference of Metallurgists, Proceedings of Ni-Co 2009 – The International Symposium, Sudbury, ON, Canada, August 21-26 2009.

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