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  • NIOSH
    IC 9303 A Platinum-Group Metals Consumption And Recycling Flow Model

    By Jr. Gabler

    World resources of platinum-group metals appear ample for the foreseeable future; however, political and economic events in the last two decades have caused concern over the availability and reliabili

    Jan 1, 1991

  • NIOSH
    RI 8804 - Concrete Crib Design and Field Testing

    By T. W. Smelser

    This Bureau of Mines report presents a review of underground testing, test results, and design guidelines of steel-fiber-reinforced concrete (SFC) mine support (cribbing) developed at the Spokane Rese

    Jan 1, 1983

  • NIOSH
    RI 5735 Process Development In Removing Sulfur Dioxide From Hot Flue Gases (In Four Parts) 1. Bench-Scale Experimentation ? Summary

    By D. Bienstock

    In connection with air-pollution studies, the Bureau of Mines is cooperating with the U.S. Public Health Service in investigating the use of solids for removing sulfur dioxide in concentrations of les

    Jan 1, 1961

  • NIOSH
    IC 7282 Tentative Inspection Standards for Anthracite Mines

    "INTRODUCTION These inspection standards have been prepared for use as a guide for the Federal inspection of anthracite mines. They are a revision of ""Tentative Inspection Standards for Anthracite Mi

    May 1, 1944

  • NIOSH
    RI 4445 Beneficiation Of Oxide And Silicate Manganese Ores From Crook, Albany, And Washakie Counties, Wyo.

    By B. K. Shibler

    As a part of the Bureau of Mines' intensive; 'investigation of domestic manganese deposits, ore-dressing studies were conducted on three samples of oxide and silicate manganese ores from var

    Jan 1, 1949

  • NIOSH
    RI 5749 Discharge Behavior In Vacuum Arc Melting ? Summary

    By F. W. Wood

    A program of research was conducted by the Bureau of Mines to investigate anomalies in electrical-discharge behavior during consumable-electrode arc melting of titanium and to study the effects of the

    Jan 1, 1961

  • NIOSH
    OFR-7-78 Improving Coal Mine Roof Stability By Pillar Softening

    By Bruce Maxwell

    The deformation modulus of coal mine pillars theoretically can be reduced by drilling holes in advance of the mining face. This reduction of modulus along the edge of the pillar has the effect of decr

    Jan 1, 1977

  • NIOSH
    IC 6457 Hafnium

    By Paul M. Tyler

    Hafnium appears to be among the more abundant of the newly discovered elements . Though quite widely distributed in nature , its compounds chemically so resembled those of zirconium , its sister eleme

    Apr 1, 1931

  • NIOSH
    RI 9548 - Dust Sources and Controls for Multiple-Machine Longwall Faces

    By Jay F. Colinet

    Longwall mining in lower seam heights may necessitate the use of single-drum shearers to overcome size constraints associated with standard double-drum shearers. To avoid the operational problem of cl

    Jan 1, 2010

  • NIOSH
    RI 9032 - Removal of Alkalies From Portland Cement Kiln Dust

    By R. D. Wilson

    Ten to twelve million tons of dust is produced by cement kilns annu-ally in the United States, resulting in a serious waste disposal problem. The Bureau of Mines investigated two alkali volatilization

    Jan 1, 1986

  • NIOSH
    IC 7077 Mining And Milling Methods And Costs At The Tennessee-Schuylkill Corporation Mine, Chloride, Ariz. ? Introduction

    By Jacob Schoder

    This is one of a series of papers published by the Bureau of Mines on mining and milling methods and costs. The Tennessee-Schuylkill Corporation, Chloride, Ariz., mines and mills a lead-zinc ore co

    Jan 1, 1939

  • NIOSH
    RI 4001 Chromiferous Sand Deposits in the Coos nay Area, Coos County, Oreg

    By Robert J. Hundhausen

    During the early part of World War II , it appeared likely that supplies of chromite for United States industry might become critically short . As a part of the ensuing search for new sources of domes

    Feb 1, 1947

  • NIOSH
    RI 3571 Carbonaceous Cation And Anion Exchangers In Water Treatment ? Introduction

    By S. J. Broderick

    [The discovery in 1934 that carbonaceous materials, such as coal, peat, and lignite, when treated with concentrated sulfuric acid, were given cation or bate-exchange properties opened up a field of ne

    Jan 1, 1941

  • NIOSH
    RI 4389 Concentration Of Oxide Manganese Ores From Northeastern Utah, Daggett Chief And Gray Hawk Properties

    By R. Havens

    During the course of the investigation of possible domestic sources of manganese, engineers of the Bureau of Mines examined and sampled two manganese mineral deposits in northeastern Utah. The Dagget

    Jan 1, 1949

  • NIOSH
    RI 9138 - Recovery of Cobalt and Copper From Complex Sulfide Concentrates

    By R. O. Dannenberg

    The Bureau of Mines conducted laboratory investigations with the objective of developing an alternative process for recovering cobalt and copper from complex sulfide concentrates. Processes currently

    Jan 1, 1987

  • NIOSH
    RI 5187 Preliminary Investigation Of The Takilma-Waldo Copper District, Josephine County, Oreg. ? Introduction

    By R. J. Hundhausen

    The Takilma-Waldo copper district in Josephine County, Oreg., was studied by the Bureau of Mines from September 1950 to April 1.951 and from December 1953 to April 1954. Funds for the investigation we

    Jan 1, 1956

  • NIOSH
    RI 5880 Preparation And Metallic Reduction Of Rare-Earth Halides And Oxides ? Summary

    By T. T. Campbell

    This report traces the development of techniques for the preparation of high-purity rare-earth metals. Rare-earth metals, excepting samarium, europium, and ytterbium, were prepared by converting their

    Jan 1, 1961

  • NIOSH
    IC 7879 Sinking Methods And Cost At The Burgin Shaft, Bear Creek Mining Co., East Tintic Project, Utah County, Utah ? Summary

    By F. D. Everett

    The Burgin shaft of Bear Creek Mining Co. near Eureka, Utah, was sunk during 1956 and 1957 as part of an exploratory program, searching for lead, zinc, copper, silver, and gold ore bodies hidden from

    Jan 1, 1959

  • NIOSH
    IC 7785 Studies On The Development And Control Of Coal-Dust Explosions In Mines - Summary

    By Irving Hartmann

    The Experimental Coal Mine of the Bureau of Mines has served principally as a valuable and unique testing laboratory for studies of the explosibility of coal dust and mine gas; studies of the numerous

    Jan 1, 1957

  • NIOSH
    RI 3410 Porosity Of The Sundance Sand In The Lance Creek Oil Field, Wyoming ? Introduction

    By H. Dale Nichols

    [The growing importance of the Sundence (Jurassic) formation an a source of oil, in the Rocky Mountain area has prompted the making of a series of porosity determinations of core samples collected. fr

    Jan 1, 1938