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  • SME
    LURGl's Circulating Fluid Bed Roasting Process Improves Gold Recovery

    By Bodo Peinemann

    For more than 35 years Lurgi has been providing its fluid bed roasters on a world­wide basis. The current total annual capaci­ty of the 250 Lurgi roasters approaches 26 million mt of sulphide minerals

    Jan 1, 1990

  • SME
    Tunneling Through Faults In Volcanic Rocks For The Construction Of The La Joya Project (Costa Rica)

    By R. Grandori, L. Pellegrini

    The construction of the La Joya hydropower plant (Costa Rica) was awarded by the Spanish power company, Union Fenosa, to the Italian Joint Venture formed by the companies SELI SpA and Ghella SpA. T

    Jan 1, 2007

  • SME
    Mongolia: Little Known Mineral Wealth

    By Louis W. Cope

    Mongolia is known in western countries as the location of rich dinosaur fossil fields. However, the country is even richer in mineral resources. The Ministry of Industry and Trade reports 6,000 mine

    Jan 1, 2006

  • SME
    Annual Review 1995 – The United States 1995

    By D. Washington

    The US economy and the demand for nonfuel minerals grew at lower rates in 1995 than in 1994. Demand for major metals, such as aluminum, copper and steel, was mixed but relatively stable. The buildin

    Jan 1, 1996

  • SME
    Evaluation Of Phosphate Depressants In The Phosphate/Silica System

    By P. Zhang

    The use of phosphate depressants in the cationic flotation of silica from francolite in the Florida phosphate industry is rarely practiced. The occasional use of gelatinized starch derivatives and pH

    Jan 1, 2009

  • SME
    Notes On The Efficacy Of Wet Versus Dry Screening Of Fly Ash

    By B. Valentim

    The methodology used to obtain fly ash subsamples of different sizes is generally based on wet or dry sieving methods. However, the worth of such methods is not certain if the methodology applied is n

    Jan 1, 2008

  • SME
    Design and Construction of Tunnel and Shaft Plugs

    By James W. Marold

    Tunnel and shaft plugs have been designed to assist in construction of new and rehabilitation of existing tunnels and shafts. Tunnel plugs have been used to provide construction access for side by sid

    Jan 1, 2008

  • SME
    INNOVATING MINING WITH SUSTAINABLE BUSINESS MODELS – THE PROFITABLE PATHWAY TO THE SOCIAL LICENCE TO OPERATE - SME Annual Conference 2023

    By J. Kretschmann, H. Mischo, O. Drusche, S. Krause

    Mining is and will be inevitable in spite of the increasing implementation of circular strategies. The energy transition and population growth will boost the demand for critical raw materials. It is t

    Feb 1, 2023

  • SME
    Construction of I-90 Highway Tunnels Under Boston’s South Station Rail Yard by Box Jacking

    By Peter van Dijk, Gary Almeraris, Philip Rice

    This paper describes the Contractor’s value engineering design and the construction of the Interstate I-90 highway tunnel sections under the South Station railroad yard in Boston, MA for the Central A

    Jan 1, 2001

  • SME
    Site Investigations And Geotechnical Assessment For The Construction Of The Deep Underground Science And Engineering Laboratory At The Former Homestake Mine

    By Z. J. Hladysz

    A Deep Underground Science and Engineering Laboratory (DUSEL) is being planned at the site of the former Homestake Gold Mine in Lead, South Dakota, under the sponsorship of the National Science Founda

    Jan 1, 2011

  • SME
    The application of vertically-mounted jet fans in ventilation shafts for a rail overbuild

    By R. E. Ray

    Compared to conventional fully ducted axial and centrifugal fan systems, jet fans can offer a number of advantages for control of smoke during fire emergencies and dilution of diesel engine exhaust pr

    Jan 1, 2009

  • SME
    A Dissolution Kinetic Model For Metal Powders A Case Of Varying Surface Area

    By Kenneth N. Han, Peter Nam-soo Kim

    A kinetic model for leaching of particulate metals in a batch system has been developed. The leaching mechanism has been analyzed by solving a series of ordinary differential equations relating hetero

    Jan 1, 2005

  • SME
    Mineral Resource estimation for the Chatham Rock Phosphorite Project

    By Ray Wood, Rene Sterk, Robin Falconer, Sean Aldrich, Simon Nielsen

    "The Chatham Rock Phosphorite project is situated 450 km east of New Zealand at approximately 350 to 450 m water depth. The deposit occurs as a thin layer of phosphatebearing glauconitic sand at the s

    Sep 1, 2014

  • SME
    Mining Engineering Education Initiatives in Australia

    By Bruce Hebblewhite

    Australia’s Minerals Tertiary Education Council (MTEC) has achieved several successes during its first three years of operation. This initiative was developed through the Minerals Council of Australi

    Jan 1, 2006

  • SME
    Rehabilitation of the Cape Creek Highway Tunnel Under Traffic

    By Roberto J. Guardia, Tim Shell, Robert A. Robinson, Steve Rodolf

    Our aging infrastructure includes numerous tunnels that provide easy access through topographic and societal obstacles. These tunnels are renewable resources that require periodic maintenance and reha

    Jan 1, 2005

  • 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
    Ambitious Endeavors in Mechanized Shaft Construction: A Case History of Two Mine Shaft Projects in Australia

    By John Zeni

    In Australia during the 1990s, Zeni Drilling took on several demanding shaft boring contracts. This paper describes the safety, operational, technical and environmental advantages derived through the

    Jan 1, 2001

  • SME
    Government Role and Influence in Mining

    By Thomas V. Falkie

    In bygone days, the mineral engineer spent most of his/her time on the technical aspects of designing, building, and managing mineral operations. In the last few decades, mostly since the 1960s, incre

    Jan 1, 2008

  • SME
    Using Dynamic Anisotropy To Improve Resource Estimation

    By K. Zabrusky

    Estimation of high grade epithermal vein deposits can present challenges in correctly representing the continuity of grade within an undulating structure. One solution to this problem is to use dynami

    Feb 27, 2013

  • SME
    Ground-Penetrating Radar for Karst Detection in Underground Stone Mines Mining, Metallurgy and Exploration (af91ef88-58ad-45be-8f21-58666827bf43)

    By Jonathan Baggett, Nino Ripepi, Amin Abbasi, Richard Bishop, Juan Monsalve, John Hole

    This work focuses on the operational and safety issues associated with karst voids in large opening underground mines. Issues include water inrush, structural instability, and engineering uncertainty