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Course Overview: This course addresses many aspects of the leaching of ores, concentrates and intermediate products in the production of nonferrous and precious metals, specifically:
| ABOUT THE ORGANIZER |
| Dr. Akram Alfantazi received a B.Sc. degree in Extractive Metallurgy from Laurentian University in Sudbury, Ontario and M.Sc. and Ph.D degrees in Metallurgical Engineering from Queen's University in Kingston, Ontario. He then worked as a Post-Doc with the Hydrometallurgy Group at the University of British Columbia for one year. He joined the staff of Metallurgical Technology Group at Falconbridge Limited in Sudbury, Ontario in early 1996 where he has been working on various hydrometallurgical/electrometallurgical projects related to the extraction of Cu, Ni, Co and Zn.
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| ABOUT THE PRESENTERS |
Dr. J. Brent Hiskey is a professor of Materials Science & Engineering, University of Arizona. Prior to joining the university in 1984, he was manager of metallurgical research at Kennecott's Process Technology Center. Dr. Hiskey received a B.Sc. degree in metallurgical engineering in 1967, a MS in 1971, and a Ph.D. in 1973 from the University of Utah. Professor Hiskey has edited or co-edited a number of books: "Gold and silver Leaching, Recovery and Economics," "Au and Ag Heap and Dump Leaching Practice", and "Interfacing Technologies in Solution Mining". In 1993, he edited the SME/TMS book "Hydrometallurgy: Fundamentals, Technology and Innovation".
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| Christopher A. Fleming was instrumental in the development of the resin-in-pulp (RIP) process for gold in the early 1980s. Throughout his career, and especially since immigrating to Canada in 1990, he has emphasized all aspects of gold processing, including leaching, alternate lixiviants, and detoxification of gold plant tailings. Collectively, these contributions have made him an internationally recognized expert on gold processing and gold process technology. Dr. Fleming's current responsibilities are in research management where he oversees all activities at Lakefield Research. Initially as manager, hydrometallurgy, and since 1992 as vice-president and general manager, he has directed Lakefield's diversification from a mineral processing laboratory to a hydrometallurgical minerals center.
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| Dan Ashman graduated the University of British Columbia with a B.Sc. degree in metallurgical engineering in 1979, and joined Cominco as an engineer-in-training immediately after graduation. In 1985 he transferred to Trail Zinc Operations, first as a plant engineer, then a Superintendent of the Zinc Pressure Leaching Plant, and finally as the Superintendent of the Sulphide Leaching Plant. He rejoined Cominco Research as a Senior Research Engineer in 1990 and became involved in the process evaluation of Cominco's new lead smelter. He became group leader of the metallurgy group in 1992, with recent projects including evaluation of zinc residue treatment methods, roasting of fine concentrates, improvements to zinc electrolyte purification, lead refining processes and the expansion of the Cajamarquilla refiners. He was promoted to Metallurgical Research Manager in 1996.
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| Dr. George Demopoulos is Professor and Chair of the Department of Mining and Metallurgical Engineering at McGill University, Montreal, Canada. He graduated from NTU in Athens, Greece with a Diploma of Engineering degree in 1975, obtained his M.Sc. degree in 1977 and his Ph.D in 1981 from McGill. He served as a visiting Research Fellow at CANMET between 1982 and 1983, joining the faculty at McGill later that year. Professor Demopoulos is active in many areas of hydrometallurgical research, including the solvent extraction separation of metals, the application of crystallization technology to hydrometallurgical precipitations systems and the kinetics and modeling of complex leaching processes.
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| Dr. Eberhard Krause was educated both in Germany (Darmstadt) and Canada, receiving M.A.Sc. and Ph.D degrees from the University of Waterloo, Ontario in Chemical Engineering. He started his working career at Inco's J. Roy Gordon Research Laboratory in Mississuaga, Ontario, where he is currently Director of Process Research. Dr. Krause has over 30 years of experience in the areas of hydrometallurgy and electrochemistry related to the recovery of nickel, cobalt, copper and associated elements. He has made particularly noteworthy contributions in the fields of arsenic fixation and the development of Inco's Ni and Co recovery process for lateritic ores.
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| Dr. David Dreisinger received his BS and Ph.D. degrees in Metallurgical Engineering from Queen's University at Kingston. He has worked from 1984 to the present at the University of British Columbia working in the field of hydrometallurgy. Dr. Dreisinger's interests include solvent extraction, ion exchange, leaching, precipitation and process design, and he is currently a Full Professor and Chairholder, Industrial Research Chair in Hydrometallurgy. The Industrial Research Chair is supported by 18 Canadian companies for the period from 1998 to 2002. Dr. Dreisinger was the 1994 winner of the Sherritt Hydrometallurgy Award. His current research interests include: Impurity Removal from Copper Refinery Solutions, Total Pressure Oxidation of Copper Concentrate, the Solvent ExtractionElectrowinning of Zinc, Biological Leaching of Copper Sulfide Ores, Oxidative Pretreatment of Refractory Gold Ores, Thiosulfate Leaching of Gold and Laterite Leaching.
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| Dr. Roman Berezowsky is Principal Consulting Scientist in Dynatec Corporation's Metallurgical Technologies Division (formerly a division of Sherritt International) at Fort Saskatchewan, Alberta, Canada. A graduate of the Chemical Engineering Department at the University of Toronto, he joined Sherritt in 1970. Dr. Berezowsky has extensive experience in the pressure hydrometallurgy of cobalt, copper, molybdenum, nickel, uranium and zinc, and is also an acknowledged expert in the pretreatment of refractory sulfidic gold ores and concentrates by aqueous pressure oxidation.
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