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  • SME
    Pulsating High-Gradient Magnetic Separation Of Fine Hematite From Tailings

    By Luzheng Chen

    Pulsating high-gradient magnetic separation (PHGMS) of fine hematite from tailings was studied using a pilot PHGMS separator to investigate the possibility of its application in industry. The results

    Jan 1, 2009

  • SME
    An Investigation Into The Use Of Backfill Zones And Yielding Pillars For Subsidence Control

    By Keith A. Heasley, Lee W. Saperstein

    This paper investigates the use of backfill zones and yielding pillars for subsidence control. The investigation begins by choosing an appropriate subsidence predictive technique to simulate the propo

    Jan 1, 1986

  • SME
    Design Criteria For Multistage Spiral Circuits

    By T. McKeon, G. Luttrell

    Spiral separators are commonly used to upgrade sand-sized particles in both the coal and mineral processing industries. Many plants utilize multiple stages of cleaning and/or scavenging spirals to imp

    Jan 1, 2007

  • SME
    Approach For Environmental Baseline Water Sampling

    Samples collected during the exploration phase of mining represent baseline conditions at the site. As such, they can be very important in forecasting potential environmental impacts should mining pr

    Jan 1, 2011

  • SME
    Mine Closure At San Martin Mine In Honduras, Central America - Preprint 09-111

    By R. E. Chaves

    San Martin Mine is an open pit, gold heap leach operation located approximately 70 kilometers from the Honduran capital of Tegucigalpa. Mining operations commenced in 2000 and were completed late in

    Jan 1, 2009

  • SME
    Industrial Minerals 2004 – Bauxite and Alumina

    By P. A. Plunkert

    Metallurgical-grade bauxite was imported into the United States from 11 countries in 2004. The principal suppliers of this 10 Mt (11 million st) of imported ore were Jamaica (33 percent), Brazil (25

    Jan 1, 2005

  • SME
    Effect of Surfactants in Dust Control by Water Sprays

    By H. Polat, Q. Hu, S. Chander

    The collection efficiency of dust particles was determined in a laboratory dust chamber equipped with a water spray. Measurements were made in the presence of selected nonionic, cationic and anionic s

    Jan 1, 1992

  • SME
    Delay Timing And Vibration-Induced Damage To The Rock Mass

    By A. Karami

    It is well established that an ordered sequencing of charge initiations in a blast pattern is an important design consideration that affects blasting performance. Delay times must be chosen such that

    Jan 1, 2000

  • SME
    Georgia Kaolin: Development of a Leading Industrial Mineral

    By R. J. Pruett

    The Georgia kaolin district is the world’s largest producer of kaolin. Georgia production tripled from 2.87 Mt (3.17 million st) in 1968 to8.35 Mt (9.2 million st) in 1998. Development of the Georgia

    Jan 1, 2000

  • SME
    Ventilation Risk Management In Underground Coal Mines: Atmospheric Monitoring In The United States

    By K. R. Griffin

    Atmospheric conditions underground are constantly changing and from a safety perspective, it is critical to identify when conditions are trending abnormally. Atmospheric monitoring in underground coal

    Feb 27, 2013

  • SME
    The CTC (Certified Trading Chains) Mineral Certification System: A contribution to supply chain due diligence and good governance in the mining sector of Rwanda and the great lakes region in Central Africa

    By D. Küster, G. Franken, P. Schütte, J. Vasters

    The CTC (Certified Trading Chains) mineral certification system has been piloted in Rwanda since late 2008. CTC project implementation is jointly driven by the Federal Institute for Geosciences and Na

    Jan 1, 2011

  • SME
    New look at underground coal mine safety

    By E. M. Spokes

    Starting in 1980, a committee of the National Research Council studied the question of why some underground coal mines are safer than others and what could be done to improve the ones with poorer perf

    Jan 1, 1987

  • SME
    Got Wet Or Dry? Get Mist Drilling.

    By Dan Armour

    Bolting solutions traditionally offered only wet drilling or dry drilling options; each with advantages and disadvantages. Joy Mining Machinery has developed a Mist Drilling System that incorporates t

    Jan 1, 2005

  • SME
    Canadian coal industry : Developments in resource conservation and productivity improvement

    By R. K. Singhal, H. Sahay

    Introduction In terms of the world's recoverable coal reserves, Canada ranks 10th, providing 0.6% of the world's total. The US is first with 27.8% and the Soviet Union follows with 24.1%.

    Jan 9, 1986

  • SME
    Turbulent diffusion coefficient in mine airways

    By N. P. Widodo

    The ventilation measurements by tracer gas method at Pongkor gold mine show that effective diffusion coefficient, E, at straight airways indicated a similar range of measured one by the laboratory exp

    Jan 1, 2009

  • SME
    Discussion – Classification effects in wet ball milling circuits – by R. E. McIvor Technical Papers, MINING ENGINEERING, Vol. 40, No. 8 August 1988, pp. 815-820

    By K. Holmberg, D. Herriot

    This paper by Mr Mclvor is yet another contribution to the eternal controversy surrounding the benefits, or otherwise, of high circulating loads in closed circuit grinding. Throughout the paper it is

    Jan 1, 1989

  • SME
    Application Of The Split-Online Sag Feed Size Analyzer At P.T. Freeport Indonesia

    By A. Supomo, A. Partanen, M. Mular

    Although many SAG operators may agree that on-line measurement of SAG feed-size is an attractive notion, applying this information in a control strategy that recovers the investment, engineering time,

    Jan 1, 2001

  • SME
    Enhanced Mobility Of Arsenic In Mine-Impacted Systems As A Result Of Anthropogenic Eutrophication

    By A. Martin

    Detailed porewater profiles of arsenic and other interstitial metabolites were used to assess the relationship between trophic status, sediment redox chemistry and arsenic mobility in a historic taili

    Jan 1, 2002

  • SME
    Developing an Automated Drill Hole Data Base and Analysis System

    By Steve Wiig

    In 1987, the Rock Springs, WY district office of the US Bureau of Land Management (BLM) began to develop an automated system to store, maintain and manipulate more than 14,000 drill hole logs containe

    Jan 1, 1992

  • SME
    Industrial Mineral Sustainability Opportunity

    By F. G. Heivilin

    There will be 3 billion people moving into cities by 2050. Permitting is both the biggest obstacle and the biggest opportunity for mining. The problem is not if we have the right minerals, but how we

    Feb 27, 2013