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Trends In The Regulation Of Mineral Deposit Valuation
By T. R. Ellis
Regulation of mineral property valuation methodology by governments and others is due to frauds, condemnation and takings, banking industry problems, and litigation. Definitions of "reserves," "resour
Jan 1, 1999
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A simplified approach to coal mine seal design
By M. M. Gadde
Recent regulatory changes in the United States make it mandatory to conduct structural analysis of coal mine seals used to isolate abandoned workings from active mining areas. Different loading criter
Jan 1, 2009
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Optimization of Tellurium and Antimony Extraction from Residue Generated in Alkaline Sulfide Leaching of Tellurium-Bearing Alkaline Skimming Slag Using Central Composite Design Mining, Metallurgy and Exploration (e0c562d4-30bd-4458-b8cb-8e6a1cd409aa)
By Qinghua Tian, Zhipeng Xu, Dong Li, Xueyi Guo, Liu Zhu
A possible process for extracting tellurium and antimony from a residue generated in alkaline sulfide leaching of telluriumbearing alkaline skimming slag was proposed. The central composite design was
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Technology for In Situ Uranium Leaching
By David Baughman, Steven Axen, Ray V. Huff, Donald H. Davidson
Introduction In situ leaching (ISL) is an alternative method of mining uranium from deposits that are low-grade, deeplying, and water-saturated. ISL recovers uranium by transporting fluids through
Jan 2, 1980
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Industrial Minerals 2004 – Calcium Carbonates
By J. Yuan
Ground calcium carbonate (GCC) and chemically precipitated calcium carbonate (PCC) have become important mineral-based commodities in recent years. GCC manufacturing generally requires high purity and
Jan 1, 2005
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Leveraging IIoT to Improve Machine Safety in the Mining Industry Mining, Metallurgy and Exploration (4481c22f-86ff-4396-9b10-ec9dd65a183b)
By D. Parks, A. Miller, M. McNinch, R. Jacksha
Each year, hundreds of mine workers are involved in machinery-related accidents. Many of these accidents involve inadequate or improper use of lockout/tagout (LOTO) procedures. To mitigate the occurre
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Developments in real time personal diesel particulate monitoring in mines
Diesel Particulate Matter (DPM) issues are very high profile currently in both Australian coal and metal mines and Australian states are generally moving to acknowledge and to broadly follow US 2008 f
Jan 1, 2009
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Ergonomic Interventions At Vulcan Materials Company (7e1e12a8-2c8d-42fd-aede-72f57e60f631)
By J. Torma-Krajewski, C. Hipes
Many mining companies apply ergonomic principles, but it is done either informally and/or reactively. Examples of an informal approach include replacing worn equipment, such as seats, with models tha
Jan 1, 2007
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MinExpo 2008: The Biggest Ever
From the massive equipment that moves the earth, to the parts that keep the equipment moving, it was all on display for more than 35,000 people who at-tended MinExpo 2008 at the Las Vegas Convention C
Jan 1, 2008
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Geology of the Vulture Mine
By Don C. White
The Vulture mine near Wickenburg, Arizona was a major gold producer from 1863 to 1942, having yielded about 11t(12.1 st) Au and 8t (8.8st) Ag. Gold occurs as coarse native metal and electrum in quartz
Jan 1, 1990
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This Is Where the Money Is! The Impact of Contract Front End Documents on Tunneling Projects
By James G. McKelvey
Owners have seen several major tunnel projects in recent years fall victim to a general reduction in the number of bidders as well as an erratic range of pricing. It should be noted though that this i
Jan 1, 2008
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Groundwater Control For Two-Pass Soft Ground Tunneling
By Cary Hirner, David Stacey, William A. Rochford
Design considerations and construction techniques were implemented to address groundwater infiltration from a confined aquifer during the excavation and lining of the Cady Marsh Flood Relief Tunnel. T
Jan 1, 2007
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The Entrainment Of Gangue Into A Flotation Froth
By S. J. Neethling
The flotation froth structure and motion determines the amount of entrained gangue that is collected to the concentrate. Despite this important role in the overall performance, the behaviour of the fr
Jan 1, 2001
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Iron Removal From Turkish Quartz Sand By Chemical Leaching And Bioleaching
By V. Arslan
The primary advantage of using oxalic acid is in the formation during leaching of soluble complexes that are both photo-chemically and microbiologically degradable. In this study, chemical leaching an
Jan 1, 2009
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Improved Leaching Performance Of Chalcopyrite By Microbial Cultures Subjected To Mutation
By J. Kang
To obtain microbial cultures with the ability to efficiently leach copper ion from chalcopyrite, microbial samples from acid mine drainage sites were mixed and then subjected to mutation using sodium
Jan 1, 2008
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Production Operations
By Lee W. Saperstien
At the heart of the mining process are a number of basic and fundamental tasks whose regular and repeated performance constitute the mining cycle. As will be discussed presently, these tasks are the b
Jan 1, 2008
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Subsidence Potential In The Eastern Kentucky Coal Field
By C. A. Johnson, K. F. Unrug
The identification of the major subsidence areas in the Eastern Kentucky Coal Field has been made to distinguish the subsidence phenomena on the basis of geographical location. Further, this identific
Jan 1, 1986
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M5 East Tunnels: A Flat Roofed, Bolt and Shotcrete-Lined Highway
By Isabelle Lamb, Manfred K. Lechner, Daniel N. Adams
Sydney Australia’s M5 East Motorway connects southwestern suburbs to the airport. Central to the project are twin 3.8 km roadway tunnels which are mostly driven through rock. In order to come up with
Jan 1, 2001
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More Than 30,000 Expected At MinExpo 2008
From Sept. 22-24, the Las Vegas Convention Center will be home to MinExpo 2008, the world?s largest mining equipment show that comes along once every four years. Sponsored by the National Mining Assoc
Jan 1, 2008
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Sensor Developments In The Determination Of Alumina To Caustic Ratio
By J. Wright
Since the 1960’s toroidal conductivity has been used to determine the Alumina to Caustic ratio of the digester discharge liquor stream. In recent years the application of ceramic materials have allowe
Jan 1, 2001