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  • SME
    Effects of Temperature and pH on Pressure Filtration of Coal Refuse Slurry Mining, Metallurgy and Exploration (08bb591f-8b35-4c27-9be5-b591d55e4b86)

    By G. S. S. Raman, M. S. Klima

    Coal refuse slurries stored in tailings impoundments can potentially lead to environmental concerns such as effluent seepage, property devaluation, and in extreme cases, dam failures. Pressure filtrat

  • SME
    Effects of Temperature and pH on Pressure Filtration of Coal Refuse Slurry

    By G. S. S. Raman, M. S. Klima

    Coal refuse slurries stored in tailings impoundments can potentially lead to environmental concerns such as effluent seepage, property devaluation, and in extreme cases, dam failures. Pressure filtrat

    Jun 17, 2019

  • TMS
    Effects Of Temperature And Precursors On Preparation Of Fe-Tic Composite From Ilmenite

    By Sutham Niyomwas

    The Fe-TiC composite powder was synthesized in situ by carbothermal reduction of ilmenite. The standard Gibbs energy minimization method was used to calculate the equilibrium composition of the reacti

    Jan 1, 2006

  • AIME
    Effects of Temperature of Pretreatment on Creep Characteristics of 18-8 Stainless Steel at 600° to 800°C.

    By Charles Austin

    IN an earlier series of studies on 18-8 stainless steel at 600°, 700°, and 800°C.1 one pretreatment was used throughout; viz., 15 min. in hydrogen at 950°C., followed by an air quench. Several manufac

    Jan 1, 1940

  • TMS
    Effects of the Mixed Surfactants on Detoxification of Chromium-containing Slag by Achromobacter sp. CH-1

    By Lijuan Chen

    During the detoxification of chromium-containing slag by Achromobacter sp. CH-1, anionic surfactant Sodium Dodecyl Sulphate(SDS) and its mixed systems with different Tween surfactants(Tween 20, Tween

    Jan 1, 2009

  • CIM
    Effects of the Type of Water on the Selective Flotation of Pyrochlore from Niobec

    By E. Esponosa-Gomez, J. A. Finch, A. R. Laplante

    "Water quality plays an important role in oxide flotation. The effects on selective flotation of fine (1-16 um) pyrochlore of two types of water used at the Niobec concentrator, potable and plant recy

    Jan 1, 1986

  • ISEE
    Effects of Topography on air overpressure from quarry blasting - a case study

    By W. J. Birch, L. Bermingham

    Air overpressure is becoming an increasingly problematic issue within the quarrying industry. With blasting operations moving ever closer to residential properties, the number of complaints about air

    Jan 1, 2013

  • SME-ICGCM
    Effects of Transverse Isotropy on Vertical Stresses When Multi?Seam Mining under Supercritical Longwall Panels

    By Anastasia M. Suchowerska

    The design of effective ground support requires a sound understanding of the pre-mining state of stress in the stratum to be mined. Irregularities in the stress field encountered during multiseam mini

    Jan 1, 2012

  • SAIMM
    Effects of two parallel fractures with nonlinear deformational behavior on one-dimensional P-wave propagation

    By X. B. Zhao, J. G. Cai

    When stress wave propagates through fractured rock masses, the wave will be slowed and attenuated due to the presence of these fractures. If the amplitude of stress wave is large enough to mobilize no

    Jan 1, 2003

  • TMS
    Effects of Ultrasound on Al2O3 Extraction Rate during Acid Leaching Process of Coal Fly Ash

    By Wenbo Luo, Kang Liu, Jilai Xue

    "Coal fly-ash(CFA) from thermal power plants is rich in Al2O3, which has great potential as an alternative resource for alumina production. In this work, Alz03 contained in the coal fly-ash was extrac

    Jan 1, 2014

  • IMPC
    Effects of Ultrasound on the Removal of Humic Acids with the Preformed Aluminium Hydroxide Flocs

    By B. C. Qi

    "In water treatment, flocculation or coagulation with aluminium or ferric salts has been widely used for many years to remove natural organic matter (NOM), including humic acids. However, the adsorpti

    Jan 1, 2003

  • SME
    Effects of ventilation and gob characteristics on spontaneous heating in longwall gob areas

    By L. Yuan

    In the U.S. coal mining industry, most spontaneous combustion fires occur in longwall or worked-out gob areas. In order to reduce the fire hazard caused by spontaneous combustion, it is important to u

    Jan 1, 2009

  • IMPC
    Effects of Water Quality on Performance of Bentonite Binders in Iron Ore Pelletization

    By S. K. Kawatra, S. J. Ripke, T. C. Eisele

    "An estimated 600,000 tons of bentonite clay are used annually in the U. S. as binder for production of iron ore concentrate pellets. Since this is a significant cost item for the plants, and the addi

    Jan 1, 2003

  • NIOSH
    Effects Of Water Sprays And Scrubber Exhaust On Face Methane Concentrations

    By Ch. D. Taylor

    Past studies with blowing face ventilation systems have shown that using a machine-mounted scrubber and water sprays can reduced methane levels at the face. The current research was conducted to dete

  • NIOSH
    Effects Of Water Sprays Used With A Machine-Mounted Scrubber On Face Methane Concentrations

    This study was conducted to determine the effects of a machine-mounted scrubber and water sprays on face methane levels. Testing was conducted in the NIOSH ventilation test gallery which was designed

  • SME
    Effects Of Water Sprays Used With A Machine-Mounted Scrubber On Face Methane Concentrations

    This study was conducted to determine the effects of a machine-mounted scrubber and water sprays on face methane levels. Testing was conducted in the NIOSH ventilation test gallery which was designed

    Jan 1, 2001

  • NIOSH
    Effects Of Weak Bands On Pillar Stability In Stone Mines: Field Observations And Numerical Model Assessment

    By John L. Ellenberger, Gabriel S. Esterhuizen

    Observations of pillar conditions in limestone mines showed that the presence of weak bands in the limestone can result in pillar damage at stresses that are lower than one would otherwise expect. The

  • SME-ICGCM
    Effects of Weak Bands on Pillar Stability in Stone Mines: Field Observations and Numerical Model Assessment

    By Gabriel Esterhuizen

    Observations of pillar conditions in limestone mines showed that the presence of weak bands in the limestone can result in pillar damage at stresses that are lower than one would otherwise expect. Th

    Jan 1, 2007

  • TMS
    Effervescence During Desulfurization Of Copper Melts

    By R. Harris

    Blister copper melts of 800 g to 1000 g containing less than 1 wt % S and up to 3 wt % Ni were desulfurized at 1523 K in air or by a pure oxygen jet blown at 75,500 and 1000 cm3/min, from 1 cm above t

    Jan 1, 1999

  • DFI
    Efficacy and Execution of Floating Lattice-Shaped Cement Treatment against Liquefaction

    By Sachihiko Tokunaga, Hirofumi Taguchi, Kenji Maruyama, Hidenori Takahashi, Yoshiyuki Morikawa

    "Abstract The present study proposed a new liquefaction countermeasure to improve sandy ground and conducted a trial execution. The new method is a floating-type and lattice-shaped cement treatment me

    Jan 1, 2014