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Teaching and Learning Adaptive Hydrometallurgy



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BPesic New qxd 12 6 2005 7 09 PM Page 1 Journal of Mining and Metallurgy 41 B 2005 17 32 TEACHING AND LEARNING ADAPTIVE HYDROMETALLURGYNANOHYDROMETALLURGY B Pe i Department of Materials Science and Engineering College of Engineering University of Idaho Mc Clure Hall Moscow ID 83844 3024 USA Received 29 December 2004 accepted 20 January 2005 Abstract The weakness of the U S mining industry has caused a significant decline in academic programs in mining and metallurgical engineering in the U S The author s view on the reasons for such weaknesses is presented in a historical prospective covering some key events within the last 30 years Arguably the decline of U S mining industry is due to many reasons the most important being the lack of modernization the difficulty to comply with stringent environmental laws and global market forces are the most important The importance of emerging nanotechnologies is viewed as an opportunity for the evolution of one component of metallurgical engineering hydrometallurgy into nanohydrometallurgy thus extending its viability Keywords Please provide 4 5 keywords 1 Introduction Extractive metallurgy has three components with overlapping aspects Corresponding author pesic uidaho edu J Min Met 41 B 2005 17 BPesic New qxd 12 6 2005 7 09 PM Page 2 B Pe i hydrometallurgy pyrometallurgy and electrometallurgy In combination with pyrometallurgy hydrometallurgy is an important contributor to the foundation of every extractive metallurgy academic program As the name suggests hydrometallurgy as an extractive metallurgy discipline involves the recovery of metals by wet methods i e from aqueous solutions The third contributor to the extractive metallurgy electrometallurgy can also be regarded as a subset of hydrometallurgy if electrowinning and or electrorefining of metals is performed from aqueous solutions If however these two electrometallurgical operations are performed from molten salts requiring much higher processing temperatures then



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