Lead-Zinc 2010 is the fifth decennial symposium by the Minerals, Metals and Materials Society (TMS), which is devoted to the theory and practice of the lead and zinc extractive metallurgy. The conference series was initiated by the American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME). The first meeting took place in St. Louis in 1970, and subsequent conferences in Las Vegas in 1980, Anaheim in 1990, and Pittsburgh in 2000. Other societies have also offered major lead-zinc meetings, including MetSoc in 1998 and in 2008, and the Mining and Materials Processing Institute of Japan in 1995 and 2005. The present volume is the proceedings of TMS Extraction & Process Metallurgy Meeting held in conjunction with the 2010 Conference of Metallurgists of the Canadian Institute of Mining, Metallurgy, and Petroleum. It has been co-sponsored by the Gesellschaft für Bergbau, Metallurgie, Rohstoff- und Umwelttechnik, and the Mining and Materials Processing Institute of Japan. Lead-Zinc 2010 also received contributions from the Chinese lead and zinc industry.

The symposium scope extends from process fundamentals to operational practices, and also includes the important aspect of environmental issues. A highlight of the conference is the plenary lectures by industry leaders offering overviews of economical, environmental, and marketing topics. The proceedings volume contains 114 papers from 23 countries, and is divided as follows: 9 Plenary Lectures that cover all aspects of the lead and zinc industries, this is followed by

: 40 papers on Lead: - 18 on Operations - 10 on Secondary Processing - 6 on Environmental Practices - 6 on New Technologies

Then 65 papers on Zinc: - 9 on Mineral Processing - 8 on Concentrate Leaching - 3 on Solvent Extraction - 13 on Electrowinning - 7 on Operations - 3 on New Technologies - 3 on Zinc By-Products - 16 on Secondary Processing - 3 on Environmental Practices

The volume is a valuable record of the Lead-Zinc 2010 symposium, and that is expected to become an excellent reference for the processing of Lead and Zinc in the future. Editors Andreas Siegmund is President of consulting company LanMetCon in Germany, Liana Centomo is Superintendent of the Technical Department at CEZinc in Valleyfield, Canada, Charles Geenen is President of Scanarc ASA, Norbert L. Piret is principal of Piret & Stolberg Partners, Consulting Engineers in Duisburg, Germany, Greg Richards is currently Principal Engineer in the Technical Support group at the Trail Operations of Teck Metals, and R. Stephens leads a team developing technology to advance Teck’s coal and energy (oil sands) businesses.

Fathi Habashi Laval University, Quebec City, Canada Fathi.Habashi@arul.ulaval.ca