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  • SME
    Examining Trends in Individual Risk Factors: Organizational Approaches to Emergency Management

    By M. E. Ryan, C. L. Hoebbel, E. J. Haas

    DISCLAIMER The findings and conclusions in this paper are those of the authors and do not necessarily represent the official position of the National Institute for Occupational Safety and Health, Cen

    Jan 1, 2019

  • SME
    Spectroelectrochemistry Of Enargite I: Reactivity In Alkaline Solutions

    By R. N. Gow

    The presence of enargite (Cu3AsS4) is problematic in gold processing because it is environmentally hazardous due to its arsenic content but also because it is double refractory causing both cyanide an

    Feb 27, 2013

  • SME
    Stability Of Open Stopes Intercepted By Graphitic Shears At Ashanti Gold Fields Company Ltd., Obuasi Operations In Ghana

    By A. Adu-Acheampong

    A geotechnical study was conducted to identify the cause(s) of stope instability at the Ashanti Mine (Obuasi, Ghana). As part of the investigation, laboratory testing of rock was performed and the roc

    Jan 1, 2003

  • SME
    Expansion And Modernization Of An Iron Ore Pelletizing Plant In Northern Sweden

    By M. Ahrens

    The paper describes the main drive systems of an iron ore pelletizing plant and related important design aspects. It is shown how today?s drive systems provide the desired flexibility for the process

    Jan 1, 2008

  • SME
    Wet Autogenous Grinding In Tumbling Mills ? 1. Introduction

    By Marcus Digre

    The autogenous grinding method has been progressively employed in mineral dressing plants during the last 15 years. The term has been used with somewhat different meanings (1), (2), (3). In this paper

    Jan 1, 1970

  • SME
    An Investigation On The Surface Chemistry Of Some Rare Earth Minerals During Flotation By TOF-SIMS (I-Bench Scale Tests)

    By S. C. Chelgani

    The Thor lake deposit is a world class resource of rare earth (REE) metals and minerals in Canada. Development work to optimize a REE mineral recovery process flow sheet is underway, however, given th

    Feb 27, 2013

  • SME
    Discriminating between different genetic types of marine ferro-manganese crusts and nodules based on rare earth elements and yttrium

    By Andrea Koschinsky, Akira Usui, Michael Bau, Katja Schmidt, James Hein, Thomas Kuhn

    Marine ferro-manganese (Fe-Mn) crusts and nodules are metal-rich chemical sediments that are archives of paleoceanographic proxies and potential metal resources and targets of deep-sea mining. Traditi

    Sep 1, 2014

  • SME
    Factors in the Variability of Measured Surface Settlements over EPB Driven Tunnels in Soft Clay

    By S. Boone, J. N. Shirlaw

    INTRODUCTION Soft, near normally consolidated clays generally provide ideal conditions for tunneling using Earth Pressure Balance (EPB) shields. It is easy to turn the clay into a low permeability,

    Jan 1, 2007

  • SME
    Helping Banks To Manage Mineral Land Trusts

    By S. M. Pickering

    Banks frequently manage large privately owned mineral land trust accounts for estate heirs. The bank has a fiduciary obligation to follow the “Prudent Man Rule”, which requires that trust properties

    Jan 1, 2002

  • SME
    Tunnel Interaction: Hydraulic, Mechanical, And Hydromechanical Approach

    By John Kinneen, Sunghoon Choi, Arne Fareth, Edward S. Barboe, Kyle R. Ott

    A new water treatment plant is to be constructed for a portion of the water supply system of New York City. The project includes construction of new water conveyance tunnels crossing perpendicular and

    Jan 1, 2007

  • SME
    Soil Deformation Analysis During TBM Excavation: Comparing Three Different TBM Technologies Used During the Construction of the Toulouse Metro Line B

    By Richard Kastner, Emilie Vanoudheusden, Fabrice Emeriault, Jacques Robert

    INTRODUCTION The subway line B of Toulouse (France) has been realized with three different tunnel boring machines (TBM) techniques: Contracts 2 and 5 are excavated with earth-pressure balanced TBM

    Jan 1, 2007

  • SME
    Engineered Pumpable pHoam?: A New Innovative Method For Mitigating Ard

    If one can embrace the medical analogue, much of the mining industry currently suffers from a massive bacterial infection. When pyrite-bearing or sulfide-bearing rock formations, tailings, or mine was

    Jan 1, 2012

  • SME
    Recovery Of Phosphate Values From Benefication Wastes

    By N. Abdel-Khalek, A. Youssef

    The tailings from beneficiation of Florida phosphate ore contain considerable phosphate values. These tailings are currently discharged into large disposal areas. More than three million tons of P2O5

    Jan 1, 2002

  • SME
    The role of coal and CCS in energy policy and sustainable development of Turkey: Is it compatible to the EU energy policy?

    By N. Sahin, K. Baris, A. Ozarslan

    This paper aims to assess the current and future role of coal in energy strategy of Turkey and evaluates the compatibility of the policies to the EU energy policy and strategy. The Turkish government

    Jan 1, 2011

  • SME
    Improving Screen-Bowl Centrifuge Performance

    By T. Burchett, F. Stanley, K. McGough, G. Luttrell

    The vast majority of U.S. coal preparation plants utilize screen-bowl centrifuges to dewater their fine clean coal products. In light of this popularity, researchers at Virginia Tech have engaged in a

    Jan 1, 2006

  • SME
    Longwall-Induced Ground Movement at a Shale Gas Well Site Located in a District Barrier Pillar—FLAC3D Modeling Results and Interpretation

    This paper evaluates the effect of longwall mining on a cluster of unconventional shale gas wells located in a district barrier pillar between a current longwall panel and the future panel north of th

    Jan 7, 2020

  • SME
    Effects of Longwsll Subsidence on Escarpment Stability

    By Valois R. Shea-Albin

    Increasing pressure from State and Federal agencies to mitigate mining-induced subsidence damage to overlying structures has presented a unique problem to the coal industry in the western United Stat

    Jan 1, 1986

  • SME
    Characterization Of Copper Flotation Products Utilzing The JKMRC/FEI Mineral Liberation Analyzer (MLA)

    By D. Brosnahan, J. Gathje

    Newmont Metallurgical Services (NMS) recently acquired a Scanning Electron Microscope (SEM) with a JKMRC/FEI Mineral Liberation Analyzer (MLA). With the MLA software package, raw particle image and X

    Jan 1, 2007

  • SME
    Efficient Separation of Trace Muscovite within the Surface/Interface of Quartz Grains from a Hydrothermal Deposit by Oxidizing Calcination and Catalytic Pressure Leaching Mining, Metallurgy and Exploration

    By Xun Zhang, Hang Qiu, Andrea R. Gerson4, Shaomin Lei, Yubiao Li, Yu Meng, Zhenyu Pei, Min Lin

    Efficient separation of trace muscovite from the surface/interface of quartz grains was accomplished during oxidizing calcination and catalytic pressure leaching of the hydrothermal quartz. Experiment

  • SME
    Modeling The Influence Of Slurry Temperature On Gold Leach And Adsorption Kinetics At The Fort Knox Mine, Fairbanks, Alaska

    By Eric M. Hill, Daniel E. Walsh, Hsing K. Lin, John T. Hollow

    The Fort Knox Mine is located in Alaska’s interior where the average ambient air temperatures range from -24°C in January to 16°C in July. The mill processes a free milling gold ore utilizing both a

    Jan 1, 2005