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  • NIOSH
    IC 7946 Field Test For Beryllium ? Summary

    By W. M. Dressel

    A simple, reliable field test for beryllium in rocks has been developed by the Rolla Metallurgy Research Center of the Federal Bureau of Minas. A small portion of the pulverized rock is fused with a s

    Jan 1, 1960

  • SME
    Reducing Emissions Through The Use Of A Fuel Borne Combustion Catalyst

    By R. Curtis

    To achieve compliance with 2015 EPA Tier 4 Final regulations, which permit only around 10% of Tier 3 particulate matter (PM) and NOx emissions, a number of technologies are being implemented. Use of a

    Feb 27, 2013

  • SME
    Expanding TLP Copper Production By Heap Leaching

    By W. K. Katoto

    The Tailings Leach Plant (TLP) of the Zambia Consolidated Copper Mines Ltd at Nchanga was commissioned in 1974 as the world's first largest successfully operated agitation leach SX-EW plant for c

    Jan 1, 1996

  • SME
    Eight To Be Inducted Into National Mining Hall of Fame

    The National Mining Hall of Fame will hold its 13thAnnual Induction Banquet during MINExpo International 2000 in Las Vegas, NV. The gala black-tie (optional) event will honor eight legendary leaders

    Jan 1, 2000

  • SME
    Convection mechanisms for geothermal heat exchangers in a vertical mine shaft - SME Transactions 2013

    By N. Wahl, D. M. Blackketter, R. Thornton

    This paper evaluated using a water-filled abandoned mine (Orphan Boy) as a heat source for a 240- kW closed-loop heat pump with the goal of heating a 2,000-m2 building. The mine has a 245-m vertical s

    Jan 1, 2013

  • NIOSH
    IC 7511 Mining Methods and Practices at International Minerals & Chemical Corp. Potash Mine, Eddy County, N. Mex

    By GEORGE T. Harley, Walter R. Storms

    This paper, which describes mining mothods at International Minerals & Chemical Corp, 'e. potash mine. in. Eddy. County, N. Mex., is one of a sories being prepared by the Mining Branch of the Bureau o

    Jun 1, 1949

  • SME
    Apparent Viscosity Evolution of Copper Converter Slag During a Reduction Process

    By Zhonglin Ye, Guangping Dai, Ba Zhang, Yonggang Wei, Shiwei Zhou, Bo Li, Hua Wang

    Decreasing copper content in slag is critical for improving copper recovery, where apparent viscosity is the main factor affecting the separation of matte/copper from the slag. The viscous behavior of

    Nov 7, 2022

  • NIOSH
    OFR-41-91 Land Ownership And The Regulatory Framework For Oil, Gas, And Coal Leasing In Alaska

    By Kenneth M. Maas

    The Bureau of Mines inventoried all lands in Alaska to determine the availability of land for oil, gas, and coal leasing. Acreage for onshore oil, gas, and coal basins was digitized as was land owners

    Jan 1, 1991

  • NIOSH
    RI 8782 Physical Property Data on Coarse Anthracite Waste

    By Bill M. Stewart

    Since 1974, a large amount of data has been developed concerning the physical properties and stability characteristics of waste generated by the mining and preparation of bituminous coal. However, ver

    Jan 1, 1983

  • NIOSH
    RI 7635 Identification And Analyses Of Copper-Base Alloys By Fluorescent X-Ray Spectrography

    By William J. Campbell

    Three types of X-ray analytical instrumentation were compared for applications in the secondary brass and bronze industry. The instruments were a conventional X-ray spectrograph, a portable X-ray spec

    Jan 1, 1972

  • DFI
    Carbon Footprint Of Common Quay Structures

    By Dr Karsten Galipp, Kai-Julian I. Hendler, Prof. Manuel G. Pinheiro, Dr Peter J. Bourne-Webb

    With a share of approximately 11% of global greenhouse gas emissions, the construction industry contributes significantly towards climate change. This is why construction projects should not only be a

    May 1, 2022

  • TMS
    Primary Cobalt Production-1987 and 1988

    By W. S. Kirk

    World cobalt production in 1987 was estimated to be about 26,600 metric tons (MT) of which Market Economy Country (MEC) production was estimated to be about 22,000 MT. Zaire and Zambia produce about 8

    Jan 1, 1988

  • NIOSH
    RI 5158 Synthetic Mica Investigations: VII, Chemical Analysis And Calculation To Unit Formula Of Fluorsilicates ? Introduction

    By H. R. Shell

    The work on synthetic mica and related subjects is being reported in a series of technical articles (see Supplementary Bibliography), each of which describes some special aspect of the subject. This i

    Jan 1, 1956

  • NIOSH
    State Statistics – Wyoming

    In 1987 Wyoming became the largest coal producing state in the country. The state is known for its extensive coal resources and extremely thick coal seams. Wyoming's coal reserves total about 69.

    Jan 1, 1992

  • AIME
    An Innovation in Semi-longwall Mining of a Thin Seam

    By AIME AIME

    AN IMPORTANT innovation in Alabama in the semi-longwall type of coal mining as applied to low-dipping thin seams has been introduced by the Galloway Coal Co., mining the Mary Lee high-ash seam which a

    Jan 1, 1934

  • ABM
    VALORIZAÇÃO, CLASSIFICAÇÃO E CARACTERIZAÇÃO DE PCIs

    By Barbara Mazzini Loureiro

    As placas de circuito impresso (PCI) são materiais heterogêneos e sua composição pode variar em função do ano de fabricação, tecnologia empregada, propósito de utilização, legislações vigentes e país

    Aug 8, 2018

  • NIOSH
    Statistical Summary Of World Production And Trade Of Major Mineral Commodities For 1992

    By Ivette E. Torres

    The final 26 tables of this chapter, tables 24-49, extend and expand the statistical series on production that was started in the 1963 edition of the Area Reports: International volume of the Minerals

    Jan 1, 1994

  • AIME
    A Limestone Mine in the Birmingham District

    By C. E. Abbott

    THE Birmingham district, Alabama, is distinctive in the proximity to one another of its deposits of iron ore, coal and flux. These three basic requisites for the making of iron and steel are found wit

    Jan 1, 1936

  • AIME
    Student Employment Problem

    By KENNETH CROPPER

    USUALLY we forget about the things which move along smoothly. There are no causes for worry when there are no troubles. But when troubles arise we must put forth some thought and effort to alleviate t

    Jan 1, 1931

  • SME
    Geochemistry and Critical Mineral Potential of Stream Sediments from the Zuni Mountains, New Mexico - SME Annual Meeting 2025

    By Evan J. Owen, Virginia T. McLemore

    The Zuni Mountains, located in Cibola County, New Mexico is an uplifted area that exposes Proterozoic igneous and metamorphic rocks overlain by Permian and younger sediments. Sedimentary-hosted Cu dep

    Feb 1, 2025