Engineering and Mining Journal - Whether the market is copper, gold, nickel, iron ore, lead/zinc, PGM, diamonds or other commodities, E&MJ takes the lead in projecting trends, following development and reporting on the most efficient operating pr
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NOVEMBER 2012 • VOL 213 • NUMBER 11 FEATURES Highlights from MINExpo 2012 Technology reigns supreme as vendors unveil new and improved equipment and services at the world's largest mining exposition..................28 Iron Ore Review 2012: Waiting for China to Catch its Breath China, the world's largest buyer of iron ore, will continue to drive and dominate the market for the foreseeable future, even as its economic growth rate shows signs of mild deceleration................................................42 Fleet Operators Ready to Gas Up The natural-gas production boom in North America and elsewhere has flared industry interest in switching mobile equipment to LNG power........................48 The Benefits of Using Gravity The leading suppliers offer their outlook on the current state of gravity-separation technology........................................................................54 Pneumatic Flotation Challenges Conventional Technology A wide range of bubble sizes, online control of froth level, turbulence-free operation and no need for a blower or a compressor comprise a user-friendly system............60 Cameco 'Pushes' New Borehole Survey Method A mechanized, power-utility industry tool used for driving rods through crowded electrical conduit finds a cost-saving niche in underground exploration drilling..62 Special Report: Mining in Canada's Territories The emerging North........................................................................................65 2013 Buyers Guide......................................................................................110 LEADING DEVELOPMENTS Cynthia Carroll Resigns as Anglo CEO..............................................................4 Teck Cuts Costs ................................................................................................4 World Gold Council Publishes Conflict-Free Gold Standard ..............................5 South African Miners Sign Wage Agreement ....................................................5 Frisco Minera Buying AuRico's Ocampo Mine....................................................6 Argonaut Acquiring Prodigy in Friendly Transaction..........................................6 AROUND THE WORLD U.S. & Canada: Thompson Creek Metals Cuts Stripping Plans ........................8 Latin America: Vale Idles Three Pellet Plants................................................14 Australia/Oceania: Queensland Lifts Uranium Mining Ban............................16 Africa: African Barrick Expands Bulyanhulu Upper East Project....................18 Asia: Sumitomo Will Develop New Orebody at Hishikari Gold Mine ................20 Exploration Roundup: Atacama Pacific Builds Gold Resource at Cerro Maricunga..22 This month E&MJ; provides an update on exploration and investment activities in the Canadian North. The cover photo shows Yukon Zinc's Wolverine zinc-silver- copper-lead-gold underground mine, commissioned in late 2010. Production in 2012 is increasing to design capacity. (Photo courtesy of Yukon Zinc) DEPARTMENTS Calendar ......................................................26 Classified Advertisements ........................134 Equipment Gallery......................................130 From the Editor ..............................................2 Markets ......................................................136 Operating Strategies..................................120 People ..........................................................12 Processing Solutions..................................127 Suppliers Report ........................................124 This Month in Coal........................................24 Iron Ore Review....42 www.e-mj.com Gravity Separation....54 Underground Drilling....62 NOVEMBER 2012 • E&MJ; 1