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
Issue link: https://emj.epubxp.com/i/271090
MARCH 2014 • E&MJ; 1 MARCH 2014 • VOL 215 • NUMBER 3 Andritz Separation has supplied thickeners for CCD cir- cuits to Nkana in Zambia (six 20-m-diameter units), Langer Heinrich in Namibia (four at 35-m diameter) and Glencore's Mumi operation in the DRC (six 35-m diame- ter). For details on the latest thickener and filter tech- nology from Andritz and other leading suppliers, please turn to p. 46. (Photo courtesy of Andritz Separation) www.e-mj.com FEATURES Mining Machines for Small Spaces E&MJ; looks at recent developments in specialist machines for narrow-vein mining ........................................................................................ 28 Aramine Loaders Win Russian Uranium ........................................................ 36 Rigs, Rods and Bits Review Increasingly intelligent machines and tougher drill string tools are capable of taking a mine's drilling program to higher levels of performance and economy.............................................................................. 38 Africa Remains an Important Destination for Mining Investment Failed policies and ongoing issues in South Africa put a damper on a discussion that should otherwise be upbeat .............................................. 42 Dewatering: An Increasingly Important Mineral Process Efficiency improvements are always the goal in this vital equipment class, with the aim of optimizing the balance between residual moisture contents and the benefits gained from water recovery .................................. 46 Special Report: Mining in Colombia—Revving Up or Out of Steam? Colombia's mining locomotive chugs uphill .................................................. 59 LEADING DEVELOPMENTS Augusta Board Opposes HudBay Buyout Offer ..................................................4 ICL Supporting Allana's Danakhil Potash Project ..............................................4 AMCOL Accepts Amended Imerys Buyout Offer after Competing Bids from Minerals Technologies ......................................................................................5 Cliffs to Cut 2014 Capex and Idle Wabush Mine, Faces Restructuring Call ......5 Alcoa Permanently Closing Point Henry Smelter................................................6 Paladin Places Kayelekera on Care and Maintenance ......................................6 AROUND THE WORLD U.S. & Canada: Detour Gold Updates Detour Lake Life-of-Mine Plan ................8 Latin America: First Quantum Targeting 320,000 mt/y Copper at Cobre Panama ............................................................................................14 Australia/Oceania: Saracen Acquiring Idle Norilsk Gold Operations in Western Australia ......................................................................................16 Africa: Ambatovy Nickel-Cobalt Project Goes Commercial ............................18 Asia: Centerra Completes Öksu ̈ t PEA, Kumtor Ownership Talks Continue ......20 Exploration Roundup: Gold Fields Pursuing Earn-in on Yorbeau's Rouyn Property ................................................................................................22 Processing Solutions....72 Narrow Vein Mining....28 Surface Drilling....38 DEPARTMENTS Calendar ......................................................26 Classified Advertisements ............................78 CSR Watch ....................................................66 Equipment Gallery ........................................74 From the Editor ..............................................2 Markets ........................................................80 Operating Strategies ....................................68 People ..........................................................12 Processing Solutions ....................................72 Suppliers Report ..........................................70 This Month in Coal........................................24 EMJ_pg01_EMJ_pg01 3/3/14 10:11 AM Page 1