The Sohn International Symposium in 2006 incorporated the fourth international symposium on sulfide smelting. This volume is dedicated to presentations made at the sulfide smelting symposium, covering sessions on sulfur and gas handling; smelter projects; technologies and recent developments; and analysis and optimizations. From the 2006 TMS Fall Extraction & Processing: Sohn International Symposium, held August 27 - 31, 2006, in San Diego, California.

Table of Contents:
VOLUME 8: INTERNATIONAL SYMPOSIUM ON SULFIDE SMELTING 2006. Foreword. Editors' Biographies. Organizing Committee. International Organizing Committee. Session Chairpersons. Sponsors and Co-Sponsors. Logos of Organizational Co-Sponsors. Logos of Corporate Co-Sponsors. PLENARY. Professor H.Y. Sohn - Biography (R.G. Reddy). It Is All About Energy (P.R. Atkins). The Precious Art of Metals Recycling (F. Vanbellen, and M. Chintinne). Nonferrous Metal Recycling in Korea: The Present and the Future (K.-I. Rhee). The Role of Processes Modeling in Iron and Steelmaking (P.C. Chaubal). Liquidus Relations of Calcium Ferrite and Ferrous Calcium Silicate Slag in Continuous Copper Converting (F. Kongoli, I. McBow, A. Yazawa, Y. Takeda, K. Yamaguchi, R. Budd, and S. Llubani). Recent Developments in Copper Hydrometallurgy (Abstract Only) (J.O. Marsden). SPECIAL ARTICLE. Remembrance of Academic Mentors and Early Associates (H.Y. Sohn). SMELTER PROJECTS. Expansion and Modernization of Onsan Smelter (Invited) (H.Y. Cho, K.H. Lee, J.S. Chang, W.C. Seo, and J.Y. Kim). Expansion Project and Progress in the Sumitomo Metal Mining Toyo Smelter and Refinary (Invited) (H. Kurokawa, H. Satoh, M. Takebayashi, and K. Yamamoto). Analysis of Copper Loss in Slag in Tamano Type Flash Smelting Furnace (Invited) (M. Furuta, S. Tanaka, M. Hamamoto, and H. Inada). Experience and Success with BSF Lead Smelting in Nordenham, Germany (Invited) (U. Kerney). Yunnan Copper?s Isasmelt?Successful Smelter Modernization in China (Invited) (Y.F. Shi). Commissioning of the Ausmelt Lead Smelter at Hindustan Zinc (Invited) (R. McClelland, J. Hoang, B. Lightfoot, and D. Dhanavel). Expansion of Gresik Copper Smelter and Refinery (Invited) (M. Hayashi, N. Hasegawa, B.P. Handogo, and A. Prayoga). The Slag Cleaning Technologies for One-Stage Flash Smelting of KGHM Polska Miedz Concentrates (Invited) (J. Czernecki, Z. Smieszek, Z. Miczkowski, N. Kubacz, J. Dobrzaski, J. Staszak, and L. Byszynski). SPCC?s 1,200,000 TPA Copper Isasmelt (Invited) (H. Walqui, C. Noriega, P. Partington, and G. Alvear). Recent Operational Improvements at Saganoseki Smelter (Invited) (Y. Suzuki, F. Hashiuchi, and Y. Yasuda). TECHNOLOGIES AND RECENT DEVELOPMENTS I. Copper Production with Outokumpu Flash Smelting: An Update (Invited) (I.V. Kojo, and H. Storch). The Development of the Codelco-Chile Continuous Converting Process (Invited) (A. Moyano, C. Caballero, R. Mackay, P. Morales, D. Cordero, and J. Font). Isasmelt Copper Converting: A Review of Possibilities and Challenges (Invited) (J.M. Rapkoch, and M. Cerna). Technological Innovations in the Mitsubishi Process to Achieve Four Years Campaign (Invited) (T. Taniguchi, T. Matsutani, and H. Sato). Isasmelt?6,000,000 TPA and Rising (Invited) (P.S. Arthur). Inco Flash Furnace Froth Column Modifications (Invited) (J. Liu, M.H.I. Baird, P. Kenny, B. Macnamara, and A. Vahed). Outokumpu Blister Flash Smelting Processes (Invited) (E.J. Peuraniemi, and M. Lahtinen). The State of the Art in Nickel Smelting: Direct Outokumpu Nickel Technology (T. Mäkinen and P. Taskinen). Two-Zone Vaniukov Furnace: New Potential in Copper and Nickel Production (M.V. Knyazev, A.G. Ryabko, L.B. Tsymbulov, and L.S. Tsemekhman). TECHNOLOGIES AND RECENT DEVELOPMENTS II. Initial Bath-Melt Making at Onsan by Flash Reaction (Keynote) (K.-H. Lee, S.-S. Park, W.-C. Seo, and J.-S. Chang). Refining of High-Nickel Copper by Silicon-Containing Reagents (A.I. Volkhin, and E.I. Eliseev). Effect of Calcium Oxide Content in Feed Charge on Performance Indicators of Smelting in Sparged Bath (A.V. Tarasov, M.Yu. Malkova, and V.V. Kozyrev). Practical Metallurgy for Continuous Converting in the Mitsubishi Process (Invited) (F. Tanaka). Phase Relations of Ferrous Calcium Silicate Slag and Its Possible Application in the Industrial Practice (Keynote) (F. Kongoli, I. McBow, and A. Yazawa). Smelting of High Arsenic Concentrates Via Teniente Converter (Invited) (C.M. Acuna, and M. Sherrington). Specific Features of Autogenous Smelting of Sulfide Raw Materials Using Oxygen-Flame Process (V.M. Paretsky, and A.V. Tarasov). Study on the Reducing-Matting-Smelting of Stibnite Concentrate to Directly Produce Antimony (Y. Chen, M. Tang, C. Huang, C. Tang, and W. Yao). Pyrrhotite Concentrate Sulfidizing (L.N. Ertzeva, L.Sh. Tzemekhman, and V.T. Diachenko). SULFUR AND GAS HANDLING. Elemental Sulphur Fixation in Smelting Gas: Is It Feasible? (Keynote) (T. Okura, S. Ueda, and K. Yamaguchi). A Harmony in Natural and Man-Made Sulfur Cycles (E. Shibata, N. Sato, T. Nakamura, T. Okura, M. Ogasawara, and M. Maeda). The Metallurgical Sulfuric Acid Plant Design, Operating & Materials Considerations 2006 Update (L.J. Friedman, and S.J. Friedman). New Types of Sulphur and Non-Conventional Methods for Its Use (O.G. Yeremin, V.A. Tanayants, and V.M. Paretsky). Production of Elemental Sulphur from Metallurgical Gases by Direct High- and Low-Temperature Catalytic SO2 Reduction (A.V. Tarasov, and O.G. Yeremin). Production of Elemental Sulfur from SO2 (RSR) (M. Rameshni, and S. Santo). Fluor SOx Cleanup Process?A Cost Effective "SO2 to Elemental Sulfur" Technology for Global Green Environment (T.K. Chow, V.W. Wong, T.M. Flood, and J.A. Gebur). Evaluation of the Efficiency of a Gas Purging System in a Copper Anode Furnace (K. Gamweger). Thermal Reduction of Vaniukov Furnace Sulfurous Oxygen-Bearing Off-Gas by Methane (O.I. Platonov). ANALYSIS AND OPTIMIZATIONS I. The Stage Selective Roasting, An Efficient Way for the Treatment of Arsenical and Antimonical Bearing Concentrates and Other Complex Metallurgical By-Products (Keynote) (P.-D. Oudenne). A New Advanced CFD Model for Flash Smelting and Converting Processes (T. Ahokainen, A. Jokilaakso, P. Taskinen, and M. Kytö). Method for Optimising Current Efficiency by Repairing Permanent Cathodes (Abstract Only) (J. Lemke). Prediction of Combustion Phenomena in Flash Smelting Furnace for Production Enhancement Using a Mathematical Model (Invited) (Y. Sasaki, Y. Mori, Y. Hattori, and A. Tanabe). Furnace Lining Analysis and Design by Mathematical and Physicochemical Modeling (Keynote) (R. Parra, L.F. Verdeja, M.F. Barbés, and C. Goñi). Mathematical Model for the Fragmentation of Copper Matte Particles Oxidized Under Flash Converting Conditions (Invited) (M. Pérez-Tello, I.M. Madrid-Ortega, and H.Y. Sohn). Thermal Conductivity of Copper Flash Smelting Flue Dust (Invited) (E. Nurminen, M. Rouvinen, and J. Jarvi). Efficient and Portable Mathematical Models for Simulating Heat Transfer in Electric Furnaces for Sulphide Smelting (Y. Pan, S. Sun, and S. Jahanshahi). Sampling Campaigns for the Characterization of Flash Smelting Combustion of Copper Concentrates (R. Parada, F. Castro, M. Parada, C. González, and R. Parra). ANALYSIS AND OPTIMIZATIONS II. Graphite Reduction of Molten Nickel Matte/Oxysulfide/Slag Part I: Slag and Oxysulfide Reduction (Invited) (J. Liu, and T.A. Utigard). Graphite Reduction of Molten Nickel Matte/Oxysulfide/Slag Part II: Nickel Matte and Slag+Matte Reduction (J. Liu, and T.A. Utigard). Kinetics and Mechanism of Copper Slag Cleaning by Injection of Natural Gas (Invited) (Abstract Only) (D. Langberg, M. Somerville, and T. Briffa). Analysis of Solids Flow in Flash Furnace Burner Concentrate Chutes (Keynote) (P. Koh, F. Jorgensen, and B. Elliot). Copper Isasmelt?Dealing with Impurities (Invited) (G.R. Alvear, S.P. Hunt, and B. Zhang). Validation of the Olympic Dam Flash Furnace Burner and Reaction Shaft Model?Comparison of Model with Plant Measurements (Invited) (C. Solnordal, F. Jorgensen, and A. Campbell). Installation and Operating Performance of the New Dry Concentrate Injection System on the Modified Teniente Converter (CT) Unit at KCMS Nkana Smelter in Zambia (Invited) (M. Syamujulu, and T. Smith). The Clyde-Worleyparsons Flash Furnace Feed System: A New Approach (M.E. Reed, C.U. Jones, P.A. Cockburn, D.E. Fallas, B. Snowdon, P.E. Walker, and R.C. Sims). CORPORATE SECTION. FLOGEN Technologies Inc. Korea Institute of Geoscience and Mineral Resources. Korea Zinc Co. Ltd. LS-Nikko Copper. Outokumpu Technology. Posco. Umicore Precious Metals Refining. Xstrata Technology. Author Index. Subject Index.