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  • SME
    Technology News - Urethane Foam Stops Metal Corrosion At Salt Mine

    The conveyor housing's corroded, exposed metal- deck was cleaned and cocooned to prevent renewed corrosion, at less than the cost of replacing the structure. And the process did not require opera

    Jan 1, 1997

  • SME
    The two Faces of Smoke

    By Charles D. Litton

    This paper presents a description of the hazards of smoke from fires, the detectability of smoke using smoke sensors, and the operational characteristics of such detectors. It places in perspective th

    Jan 1, 1992

  • SME
    Geometric and Physico-chemical Properties Determining Sulfide Oxidation Rates in Waste Rock Dumps

    By Alan M. Ritchie, Paul Miskelly

    The 2-D code FIDHELM has been used to simulate conditions in piles of pyritic material with vertical dimensions of 20 to 70 m and a horizontal dimension of 500m. Those properties of the pile and its e

    Jan 1, 2000

  • SME
    The Method Of Bullflex® - An Entire New Approach In Making Steel-Rib Supports For Roadways Far More Effective

    By Werner A. Dürrfeld

    The Bullflex® System was introduced as a substitute for timber and debris lagging in mines and to create an in-situ early-stage interlocking effect between steel supports and the rock wall. As deplace

    Jan 1, 1981

  • SME
    Coal desulfurization by bacteria

    By S. K. Kawatra, S. Bagley, T. C. Eisele

    To meet federal air pollution guidelines, it is necessary to remove a considerable quantity of sulfur from many North American coals. This may be accomplished by oxidizing the sulfur to water soluble

    Jan 1, 1988

  • SME
    Evaluation of Toxicology of Reagents in the Mining Industry

    By Marvin A. Ph. D. Friedman

    The following paper describes an overview of evaluations for assessing the potential hazards associated with handling newly developed reagents used in the mining industry. Important factors in determi

    Jan 1, 1994

  • SME
    John Doe Bloopers, Blunders, and Scams

    By William F. Riggs

    The name of this symposium speaks for itself in the connotation normally assigned to the term 'political. "In this paper, various donors have contributed their stories of metallurgical bloopers,

    Jan 1, 2001

  • SME
    Aggregation And Salt Flotation Of Talc

    By Antonieta Middea, Rupen Adamian, Fernando F. Lins

    This work presents the results obtained with aggregation of fine talc (-19 m), a naturally hydrophobic mineral, in the presence of KC1 solutions. The classical DLVO theory describes well the aggregati

    Jan 1, 1995

  • SME
    Cationic Flotation Reagents for Mineral Beneficiation

    By David L. Gefvert

    A general review of the role of cationic flotation reagents in the beneficiation of phosphate, iron, and potash ores. The three major types of cationic collectors-amines, ether amines, and condensates

    Jan 1, 1986

  • SME
    The Development Of A Mine Systems Engineering Program

    By R. V. Ramani

    This paper is based on the thesis that the demand for computer-oriented mining engineers will continue to sharply increase in coming years. It presents the philosophy behind the development of a mine

    Jan 1, 1982

  • SME
    Industry, Government Review Mine Safety Procedures

    Accidents that resulted in 16 deaths in three West Virginia coal mines, two in Kentucky and one in Utah have government and industry re-evaluating current safety regulations. Even though U.S. mines co

    Jan 1, 2006

  • SME
    The Recirculation Hoax

    By John A. L. Campbell

    Are safety concerns justified regarding the potential for a gas explosion due to recirculation when a scrubber is used on a continuous miner? The role of a respirable dust scrubber on a continuous min

    Jan 1, 1987

  • SME
    Laboratory Studies Of High Speed Tunnel Boring

    By Jerry Dollinger, Levent Ozdemir

    An extensive series of laboratory cutting tests using linear and rotary cutting machines were carried out with the objective of investigating the feasibility of achieving very high rates of penetratio

    Jan 1, 1987

  • SME
    Phosphate Rock Beneficiation Practice in Florida

    By Ronald L. Wiegel

    The United States produces approximately 40 mil- lion tons of phosphate rock per year. Most of this rock is converted to diammonium phosphate and used as a fertilizer component for the domestic and in

    Jan 1, 1999

  • SME
    Simulation Studies On Truck Dispatching - Introduction

    By F. L. Wilke

    Truck haulage costs form a major part of the total mining costs in hard rock open pit, mining operations. In order to minimize these costs one has to - determine the optimal truck fleet (type, size

    Jan 1, 1982

  • SME
    Discussion – Paleoplacers of the Witwatersrand Basin – Mining Engineering, Vol. 42, No. 2, pp. 195-199 – Minter, W. E. L.

    By E. S. Cheney

    Minter (1990) has provided an excellent summary of the sedimentology and theories of origin of the Witwatersrand paleoplacer Au/U deposits. However, recent stratigraphic, metamorphic and structural-te

    Jan 1, 1991

  • SME
    When to Use Water Only Cyclones

    By Mark P. Schmidt, Douglas D. Schlepp

    Water Only cyclones were introduced into commercial operation for cleaning of metallurgical and steam coal around 1950. Since its original introduction as a primary cleaning device, the employment of

    Jan 1, 1988

  • SME
    Adsorption of silver thiourea on activated carbon

    By H. J. Sohn

    Systematic studies were carried out on the adsorption of the silver thiourea complex on activated carbon. The experimental isotherm data fit the Freundlich isotherm equation. The adsorption rates incr

    Jan 1, 1987

  • SME
    Solving Operation And Production Problems At The Soldier Canyon Mine Degasification Project

    By Jeff Schwoebel, Dale Evans, Boyd Tangren

    The Soldier Canyon Mine (the "Mine") degasification project demonstrates the ability to commercially recover coalbed gas to reduce overall mine costs associated with methane drainage. Gas is recovered

    Jan 1, 1993

  • SME
    Finding The Mining Sequence And Cutoff-Grade Schedule That Maximizes Net Present Value

    By F. Seymour

    A dynamic programming algorithm is presented that takes a series of nested phases, a fixed mining-rate schedule and a fixed plant-production-capacity schedule, and, from these, finds the mining and cu

    Jan 1, 1996