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  • SME
    Review of electrical separation methods – Part 2: Practical considerations

    By K. Hanumantha Rao, K. S. E. Forssberg, H. R. Manouchehri

    This paper summarizes the practical considerations of the various electrical separation methods used in mineral processing. The effective factors related to mineral characteristics and equipment attri

    Jan 1, 2000

  • SME
    The Four Fates of the 140-Year-Old Baltimore and Potomac Tunnel

    By William A. Prosser, Kyle R. Ott, Philip Rice

    "INTRODUCTION The existing Baltimore and Potomac (B&P) Tunnel accommodates Amtrak (National Railroad Passenger Corporation) and MARC (Maryland Rail Corporation) service between Baltimore, MD and Washi

    Jan 1, 2016

  • SME
    Chemical Grouts Influence On Mechanical Properties Of Coal ? Laboratory Research

    By K. Soucek

    Extraction of hard coal reserves, but also of mineral resources in general in the underground coal mines includes in itself many anthropogenic interventions in the earth crust. These interventions are

    Jan 1, 2006

  • SME
    Chlorination Of Zirconium Bearing Materials To Produce High Purity Zirconia

    Zirconium chloride is of great commercial importance as starting materials for production of ZrO2, Zirconium metal and other Zirconium compounds from its main resources (Zircon Sands). The present stu

    Jan 1, 1997

  • SME
    Regional Two-Seam Stress Analyses At The Deer Creek Mine

    By Hamid Maleki

    A geotechnical monitoring program has been implemented at Energy West Mining Company for enhancing site-specific evaluation of longwall stress conditions. This program consists of underground measure

    Jan 1, 2009

  • SME
    The Need For Specialty Chemicals For Flotation Plant Optimization In Developing Countries

    By Prasad S. Mulukutla

    INTRODUCTION The use of specialty chemicals In mining Is an Important consideration In determining the economic efficiency of a floatation plant. The plant metallurgist would like to maximize the r

    Jan 1, 1993

  • SME
    Summitville, Colorado - Summitville: The Discovery of a Solfataric Gold Ore Body

    By William H. Bird

    Over the past 14 years, the efforts of 2 companies and several individuals have outlined a major solfataric gold ore body in the Summitville district in the southeast San Juan Mountains of Colorado. T

    Jan 1, 1990

  • SME
    CERN’s LHC Project–Large Caverns in Soft Rock at the Edge of Feasibility

    By Hans-Christian Kurzweil, Klaus Mussger

    CERN, the European Laboratory for Particle Physics, are upgrading their existing particle accelerator for the next generation of experiments and have three major packages of underground construction w

    Jan 1, 2003

  • SME
    Limestone and Dolomite (1bc2f61d-ab7f-42f9-85f8-1e0bb0878a4b)

    By Robert C. Freas, Donald D. Carr, Lawrence F. Rooney

    Perhaps no other mineral commodities in this volume have as many uses as limestone and dolomite. These carbonate rocks are the basic building blocks of the construction industry, the material from whi

    Jan 1, 1994

  • SME
    Choice of Pumping Pressure in Pre-Grouting in Scandinavian Tunneling Projects

    By Håkan Stille, Jalaeddin Y. Rafi, Fredrik Johansson

    "INTRODUCTIONIn tunneling projects, pre-grouting is performed with the purpose of establishing an impervious zone around the tunnel periphery. This is obtained by reducing the penetrability of the mos

    Jan 1, 2016

  • SME
    Electrostatic and Magnetic Separation

    By J. E. Lawver, R. J. Haskin, A. Nussbaum, E. A. Laurila, W. J. Bronkala, D. M. Hopstock, J. H. Brophy, M. Wada, E. J. Tenpas, R. W. Salmi

    Electrostatic separation is the selective sorting of solid species by means of utilizing forces acting on charged or polarized bodies in an electric field. Separation is effected by adjusting the elec

    Jan 1, 1985

  • SME
    Ring-Geared Mills Operated With Frequency Converter (Much More Than Just Variable Speed)

    By T. R. von Ow

    The method of powering mills such as AG, SAG and Ball has a long and technically interesting history. It can be said that almost every decade in the last half century had its own trend. The trends wer

    Jan 1, 2010

  • SME
    Discovery And Geology Of Gold Mineralization At The Turquoise Ridge Project. Humboldt County

    By E. J. Berentsen

    The Turquoise Ridge gold deposit is located near the Getchell Mine, 72 km (42 miles) northeast of Winnemucca, Nevada. The deposit is owned by First Miss Gold Inc. The host rocks consist of Ordovicia

    Jan 1, 1996

  • SME
    Rock Fracturing Techniques For In Place Leaching

    By George B. Griswold

    The two most stringent parameters for in place fracturing of rock are the lack of any initial void space in the rock which to expand into and the ability to gain access only through drill holes. These

    Jan 1, 1969

  • SME
    Hong Kong: Fire Strategy, Life Safety and Ventilation in Road Tunnels

    By John Armstrong, Michael Savill, David Powell

    Hong Kong is an intensively developed region and has the highest vehicle densities in the world. In 2000 there were 6.6 million people and 580,000 vehicles using 1,890 km of road covering the 1084 km

    Jan 1, 2001

  • SME
    Seismic Refraction Equipment For Industrial Mineral Exploration

    By Stephen V. Thompson

    Within recent years portable seismic refraction units have found their place in the industry for shallow investigations, Completely portable, relatively inexpensive and of proven accuracy, the portabl

    Jan 1, 1964

  • SME
    Bioleaching Of Refractory Gold Concentrates At High Pulp Densities In A Non-Conventional Rotating Drum Reactor

    By M. N. Herrera

    The bioleaching of mineral sulfide pulps in a bench-scale rotating drum reactor has been studied. The reactor includes horizontal paddles in the inner wall for lifting of the mineral pulp. The perform

    Jan 1, 1997

  • SME
    Selecting Circuits To Prepare Beneficiation Circuit Feed From Primary Crusher Product

    By M. D. Flavel

    Testing methods are described to help in decisions of selecting the most viable comminution circuits. The authors present a comparison evaluation based on numerous studies to help make initial choices

    Jan 1, 1981

  • SME
    Analytical Design Procedure Using The Wilson Equation

    By V. A. Scovazzo

    The analytical pillar design procedure employing the Wilson equation is based on the site-specific material strength of the floor, pillar, and roof rock. Stable pillars so designed will sometimes be l

    Jan 1, 2010

  • SME
    The Role Of Mathematical Modelling And Simulation In Modern Mineral Processing Practice And Control

    By I. J. Dowdeswell

    Perspective Man is a model maker. Throughout recorded history man has-used models both to provide insights into the workings of the processes which surround him and as a step towards the eventual con

    Jan 1, 1972