May. '04 Producing Copper Nature's Way: Bioleaching Bioleaching is the extraction of a metal from sulfide ores or concentrates using materials found native to the environment; namely, water, air and microorganisms. In other words, bioleaching is the commercialization of the ability of certain bacteria and archaea, found in nature, to catalyze the oxidation of sulfide minerals.
Aug. '01 Introduction to Copper: Applications This article is intended as an introduction to copper, describing the many ways in which the metal is so useful. The article also touches on copper's invaluable contribution to the health of plants, animals and mankind.
Aug. '01 How Hydrometallurgy and the SX/EW Process Made Copper the "Green" Metal Copper is traditionally known as the "red" metal after its natural color. However, it is also known as a "green" metal for the green patina that it acquires due to weathering. Indeed, patinized copper is the architectural focal point of many modern buildings for its
natural look.
Aug. '01 Introduction to Copper: Types of Copper This article is intended as an introduction to copper, describing the many ways in which the metal is so useful. The article also touches on copper's invaluable contribution to the health of plants, animals and mankind.
Aug. '01 Phelps Dodge Morenci Has Converted All Copper Production to Mine-for-Leach In early 2001, the Phelps Dodge Mining Company's Morenci, Arizona operations were completely converted from a conventional mining, milling, smelting and refining operation to a system whereby ore will be mined exclusively for leaching.
Nov. '99 Copper/Cobre 99 a Success International conference confirms producers' strong interest in new technology.
Nov. '98 Copper: Technology & Standards Brief history of copper mining techniques from earliest industrial mining days through flash smelting, electrorefining, solvent extraction and electrowinning. Also covers changes in fabrication and production techniques.
Sep. '98 Industries of the Future: New Technologies for the Mining Industry The Department of Energy and the National Mining Association's agreement of June 1998 to launch a government/industry research and development partnership in mining as part of the DOE's "Industries of the Future" program.
Jun. '98 Trapping Sulphur How Outokumpu flash smelting technology lowers emissions and costs while increasing capacity.
May. '98 The Secret to Staying Young Utah's Bingham Canyon, an open pit mine goes from boom (1980) to bust (1982) and back to boom (today) through investment in new technology.
Feb. '98 New Research Program Focuses on Improvements for the 21st Century The Air-Conditioning and Refrigeration Institute's Board of Directors' new research program (1997) focuses on pre-competitive research to provide solutions to obstacles preventing HVAC&R manufacturers from introducing new systems and components.
Nov. '97 How Do They Do That? Bringing Copper to Market Step-by-step guide (with basic illustrations) from mining to shipping to smelting to trading to examples of how copper is used on a daily basis.
Nov. '97 How Do They Do That? In Situ Mining Step-by-step guide (with basic illustrations) covering purpose and construction of in-situ copper mines.
Nov. '97 How Do They Do That? How Copper is Made Step-by-step guide (with basic illustrations) travels from mine to mill crushing plant to mill concentrator to smelter to electrolytic refinery to rod plant or external customers. Also, oxide leaching and solvent extraction-electrowinning.
Nov. '97 Millions of Dollars Saved With Non-Traditional Shutdown Procedures Details of the innovative "seven-day mini-shutdown" procedures developed and adopted by one of the world's largest and most productive copper smelters which is saving millions and increasing capacity without constructing new smelters.
