T.T. Chen Honorary Symposium on Hydrometallurgy, Electrometallurgy and Materials Characterization

Shijie Wang, Rio Tinto Kennecott Utah Copper Refinery John E. Dutrizac, CANMET Michael L. Free, University of Utah James Y. Hwang, Michigan Technical University Daniel Kim, Rio Tinto Kennecott Utah Copper Refinery

Preface xiii In Honor of Dr. Tzong T. Chen xv Editors xvii T.T. Chen Honorary Symposium on Hydrometallurgy, Electrometallurgy and Materials Characterization Plenary Session A Review of the Behavior and Deportment of Lead, Bismuth, Antimony and Arsenic in Copper Electrorefining 3 M. Moats, S. Wang, and D. Kim Technological Overview of Zinc Industry - Now and Future 23 T. Yoshida The Development of China's Molybdenum Metallurgical Technologies 39 K. Jiang, W. Haibei, Z. Xiaoping, Z. Lei, and B. Zhang Some Applications of Molecular Recognition Technology (MRT) to the Mining Industry 51 S. Izatt, R. Bruening, and N. Izatt Copper Electrorefining METTOP-BRX-Technology - Industrial Application 63 C. Wenzl, A. Filzwieser, andS. Konetschnik Implementing Wireless Electrolytic Cell Monitoring System at Kennecott Utah Copper for Improved Operational Efficiency 77 A. Rantala, and D. Kim Autoclave Pressure Oxygen Leaching of Anodic Copper Slimes 91 T. Morris, and L. Navarro Mechanism and Thermodynamics of Floating Slimes Formation 101 B. Hiskey Detellurization Process of Copper Anodic Slimes Leach Liquor by Cementation of Tellurium Using Elemental Copper 113 T. Morris, L. Navarro, and W. Read New Process of Precipitation of Sb and Bi from Copper Electrolytes with PbO2 125 G. Cifuentes, J. Simpson, and C. Vargas Study of Electrolyte Impurity Precipitates at the Kennecott Refinery 131 J. McAllister, D. Kim, and S. Wang Copper Refining Electrolyte Purification by the Use of Molecular Recognition Technology (MRT) for Bismuth Removal 141 L. Navarro, W. Read, and T. Morris Optimizing a Cascading Liberator 151 B. Wesstrom, and O. Araujo Copper Electrorefining Impurity Evaluation 157 M. Free, J. Mcallister, U. Marshall, M. Marshall, D. Kim, and S. Wang Base Metal Processing The Development of China's Copper Primary Smelting Technology 167 K. Jiang, L. Li, Y. Feng, H. Wang, B. Wei, and X. Zou New Process for Treating SCF Flue Dust at Atlantic Copper 177 G. Rios, J. Vinals, A. Sunyer, and C. Arbizu Direct Leaching Alternatives for Zinc Concentrates 191 K. Svens The Effect of Polytetrafluoroethylene on Pressure Oxidation of Chalcopyrite 207 J. Nuo, and E. Guerra The Effect of Complexing Agents and the Anode Material on the Kinetics of Electro-Assisted Reduction of Chalcopyrite 217 E. Martinez-Jimenez, and G. Lapidus-Lavine Nickel Smelter Slag Microstructure and Its Effect on Slag Leachability 225 I. Perederiy, V. Papangelakis, and I. Mihaylov Characterization of Aluminum Cathode Sheets Used for Zinc Electrowinning 239 N. Gao, D. Liu, and M. Mahne Mechanical Pretreatment of Lead Based Alloy Anode for Zinc Electrowinning 251 T. Aichi, R. Sato, M. Muramatsu, H. Takahashi, and K. Tohji Duplex Stainless Steel Corrosion in a Zinc Plant Purification Filter Application 263 T. Moore, M. Heximer, and D. Verhelst Transition Metal Processing FeTi Alloy Production by Electrolytic Reduction of (Fe, Ti) Oxide Electrode in Molten Calcium Chloride 275 P. Mrutyunjay, A. lizuka, E. Shibata, and T. Nakamura A New Method for Production of Titanium Dioxide Pigment - Eliminating CO2 Emissions 285 S. Middlemas, Z. Fang, and P. Fan Extraction of Titanium and Vanadium by Chloride Leach Processes 295 L. Lakshmanan, R. Sridhar, T. Sheikhzeinoddin, M. Halim, and R. Roy Anion-Exchange Separation of Zr from Hf using Multi-Column Method 303 M. Uchikoshi, K. Mimura, and M. Isshiki Recovery of Metals from Molybdenite Concentrate by Hydrometallurgical Technologies 315 Y. Wang, K. Jiang, X. Zou, L. Zhang, and S. Liu Extraction Impurities such as Fe, Ca and Mg from a Titanium Material in Chloride Acid System with Microwave Eenergy Leaching 323 S. Ju, J. Peng, S. Guo, W. Xin, L. Zhou, and M. Huang Study on Sodium Roasting and Chromium Extracting of Fe-Cr Spinels 333 H. Fang, H. Li, and B. Xie Precious Metals,