Engineering & Mining Journal

JUN 2013

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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JUNE 2013 • VOL 214 • NUMBER 6 FEATURES Underground Rock Handling E&MJ looks at some recent developments in both traditional and unconventional systems for moving rock in underground mines....................56 Russian Gold Industry Looks Toward a Period of Stable Growth Russia intends to move to third place on the list of the world's largest gold miners by 2016 ..........................................................................64 Shaft Sinking Begins at Wesizwe Bakubung A Chinese investor quietly drives rare platinum greenfield project ................76 Dynamic Earth Model Offers New Exploration Insights Miners looking deeper underground for new mineral deposits need better tools to reduce risk and identify favorable locations. Comprehensive digital subsurface models offer improved technology to accomplish both of these goals. ................................................................80 Leveraging Lubrication It's a time-worn adage, but still true: pay now or pay later. When it comes to proper lubrication of mine equipment, a few dollars spent now can help avoid major unplanned costs in the future. ............................82 Liebherr Cranes Keep Big Wheels Turning In a carefully choreographed maneuver, three cranes lifted, turned and positioned a 140-mt replacement wheel for one of the world's largest excavators ..........................................................................................86 The Bakubung platinum mine plans to raise 230,000 metric tons per month (mt/m) of ore to the surface from a 1,000-m deep main shaft. The superstructure (on the cover) stands 86-m high and holds 1,860-mt of headgear. Cleaning Up the Red Mud Canadian scientists hook up with worldwide waste management specialists to introduce a technology breakthrough that will reclaim the scourge of bauxite beneficiation ..............................................................88 A Promising New Development in Coal Analysis ..........................................92 bauma 2013 Lives Up to Expectations The mining segment and the world's largest equipment fair continues to build momentum........................................................................98 Underground Haulage....56 Getting More Gold from Slimes: Higher Productivity in Wet Chlorination Continuous monitoring of in-line oxidation reduction potential assisted a major copper producer in developing a sustainable, efficient approach to slimes processing that required less costly reagents, increased yield and improved efficiency ......................................110 Special Report: Mining in Peru The llama that lays the golden egg ............................................................113 www.e-mj.com Russian Gold....64 JUNE 2013 • E&MJ 1

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