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  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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