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  • NIOSH
    Improved Dust Control For Bag Handlers - On-Site Tests Lead To Minor Modifications To A Bag-Palletizing System That Significantly Reduce Workers' Dust Exposure

    By Jeanne A. Zimmer, Brad Smith, Steve Viles, Andrew B. Cecala

    A recent report evaluating silica exposure levels in the metal/nonmetal mining industry noted that bag packaging and loading are some of the occupations at the greatest risk. In addition to dust probl

  • TMS
    High Temperature Interactions between Si3N4 and Tic

    By N. Can

    Kinetics and mechanism of the chemical interactions between Si3N4 and TiC were investigated by isothermally reacting samples under nitrogen and argon atmospheres at temperatures between 1600°C and 170

    Jan 1, 1999

  • AIME
    Papers - Effect of Small Percentages of Chromium on the Quality of Cast Iron (With Discussion)

    By Charles O. Burgess

    The improvement in the quality of cast iron by means of alloy additions has been a metallurgical accomplishment of recent years. Work in this field has shown that chromium is one of the most effective

    Jan 1, 1933

  • NIOSH
    RI 8114 Reduction of Zinc Sulfide With Iron

    By Philip E. Sanker

    The Bureau of Mines conducted small-scale batch and semicontinuous tests on the reduction of zinc sulfide with iron according to the reaction ZnS + Fe ? FeS + Zn to determine reaction kinetics in the

    Jan 1, 1976

  • ABM
    Simulation Of Product Specifications Of A Samarco’s Secondary Grinding Stage For Different Ball Sizes

    By Jackson Teixeira de Oliveira, Douglas Batista Mazzinghy, Vanderson Eney de Matos, Alexandre Camilo Leles de Figueiredo

    This work studied the effect of different ball sizes in the secondary grinding stage of Samarco. The Moly-Cop Tools 3.01 spreadsheet was used for models calibration and simulations, considering grindi

    Oct 3, 2019

  • AIME
    Extractive Metallurgy Division - Equilibrium Considerations in the Roasting of Metallic Sulfides

    By Herbert H. Kellogg

    The chemistry of sulfide roasting is analyzed to show those aspects of performance which Thecan be predicted from considerations of thermodynamic equilibrium. It is concluded that equilibrium calculat

    Jan 1, 1957

  • TMS
    Operational Results of Norddeutsche Affinerie Copper Smelter

    By Peter Willbrandt

    The flash smelter at NA was commissioned in March 1972 with an initial throughput of 50 tons of dry copper concentrate per hour. As a result of various measures, for example, oxygen enriched process w

    Jan 1, 1993

  • NIOSH
    RI 9294 Use of Sheathed Explosive Charges on Longwalls

    By Richard J. Mainiero

    The U.S. Bureau of Mines in cooperation with Jim Walter Resources, Inc. (JWR), Brookwood, AL, evaluated the use of sheathed explosive charges in breaking up large stones that can jam the feeder¬breake

    Jan 1, 1990

  • SME
    New XRF Analyzer For Elemental Analysis Of Sample Streams (579c7d37-7910-41c9-8e47-95bb7ebe80c4)

    By M. J. Laurila

    Elemental analysis of slurry streams using X-ray fluorescence (XRF) has long been employed. However, detector technology has limited the application of XRF devices. Using detector technology employed

    Jan 1, 1999

  • NIOSH
    RI 4021 Manganese Products Corp.'s Morgan Group, Dona Ana County, N. Mex

    By Paul L. Russell

    This property has been examined several times in the last few years , and findings have been reported . In the fall of 1942 , the author supervised sampling both lode and placer deposits . The ore was

    Feb 1, 1947

  • AIME
    Washington Paper - Preliminary Note on the Thermal Properties of Slags

    By Henry M. Howe

    SECTIONS 1. INTRODUCTION.—In this investigation the meltingpoint and the specific heat of certain artificial silicates were determined by the method of mixtures, using a large platinum-ball pyrometer.

    Jan 1, 1890

  • NIOSH
    Silicone Vapor Poisoning of Catalytic Methane Sensors

    By L. J. E. Hofer, J. L. Snyder, J. N. Barn, J. E. Chilton, W. E. Thomas

    Various silicone materials have been proposed for use in mining environments. The catalytic methane sensors now employed are poisoned by silicone vapors. Activated charcoal and carbon cloth adsorbents

  • ABM
    Aglomeração De Carvão A Frio Para Aumentar A Produtividade De Plantas De Coke

    By Pedro Antunes Amaral

    Currently there is a constant and essential concern of preserving nature. Over the years the concern with the environment is increasing, new environmental laws are emerging and being applied more rigo

    Oct 30, 2017

  • AIME
    Papers - Mechanical Properties - Hardness Measurement as a Rapid Means for Determining Carbon Content of Carbon and Low-alloy Steels (Metals Technology, January

    By Nicholas Kowall, K. L. Clark

    Maximum furnace efficiency and close control of final steel composition demand that the steel melter be able to follow closely the variations in the carbon content of the bath. For many years, the

    Jan 1, 1944

  • AIME
    Papers - Mechanical Properties - Hardness Measurement as a Rapid Means for Determining Carbon Content of Carbon and Low-alloy Steels (Metals Technology, January

    By K. L. Clark, Nicholas Kowall

    Maximum furnace efficiency and close control of final steel composition demand that the steel melter be able to follow closely the variations in the carbon content of the bath. For many years, the

    Jan 1, 1944

  • SME
    Plant Operation Of The Deister Flotaire Column Flotation Cell

    By Donald E. Zipperian

    It has been recognized that froth flotation of mineral particles utilizing rising flow of micro size air bubbles, counter-current to quiescent falling flow of particles in a column type cell, provides

    Jan 1, 1985

  • ISEE
    Productivity Increases Through Pattern Expansion With Ultra-High

    By Miguel Humpire Huamani, Gustavo Huerta Valer, Jorge C. Cárdenas Miranda

    As part of the continuous improvement and increase productivity to achieve the mining and extraction plan of a low-grade open pit copper operation, alternatives are required to expand the blast patter

    Feb 6, 2023

  • TMS
    Design, Construction, and Operation of Periodic Reverse Current Process at Tamano

    By Tatsuzo Kitamura

    The tank house of Tamano refinery, that started its operation in January, 1972, was constructed incorporating the application of Periodic Reverse Current (P.R.C.) from the outset of design works. In 1

    Jan 1, 1976

  • CIM
    Identification and Risk Assessment of Cross-Border Mergers and Acquisitions y China?s Coal Enterprises

    By Zhang Junzhi

    This paper relates cross-border mergers and acquisitions (M&A) risk management theory to actual coal enterprises in China. The 3 phases of M&A are preparation, implementation and integration. By using

    Aug 1, 2013

  • AUSIMM
    Sustainable Minerals Education – We Care, But do You?

    By D Laurence

    Mining cycles have come and gone and with them there have been dramatic swings in the levels of interest and student entry into minerals-related education programs, hence graduate supply to the indust

    Mar 21, 2011