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  • NIOSH
    RI 7361 High-Temperature Combustion Of Coal Seeded With Potassium Carbonate In The MHD Generation Of Electric Power

    By D. Bienstock

    A rig was constructed to burn 100 to 125 lb of coal per hour at 4,000° F in a cyclone burner with oxygen-enriched air preheated to 1,500° F to ascertain the problems in the coal-fired MHD generation o

    Jan 1, 1970

  • NIOSH
    RI 8713 Atmospheric Pressure Desilication of Leach Liquors From Lime-Sinter Processing of Anorthosite

    By Masami Hayashi

    The Bureau of Mines conducted laboratory studies to investigate methods for desilicating sodium aluminate solution derived from leaching a limestone-anorthosite sinter with 10-pct Na2C03 solution. Des

    Jan 1, 1982

  • NIOSH
    Review Of The Mineral-Fuel Industries

    By Warren E. Morrison

    Stimulated by 4 years of continuous economic growth without inflation, demand for energy in the United States reached an alltime high in 1964. Total value of production of goods and services (gross na

    Jan 1, 1965

  • NIOSH
    RI 5777 Recovering Aluminum And Fluorine Compounds From Aluminum Plant Residues ? Introduction And Summary

    By R. S. McClain

    The Federal Bureau of Mines investigated residues from aluminum plants, to determine if carbon could be removed by flotation while recovering fluorine and aluminum compounds for recycling to the reduc

    Jan 1, 1961

  • NIOSH
    IC 8099 Use Of High-Speed Data Reduction And Processing In The Mineral Industry ? Summary And Introduction

    By Richard F. Hewlett

    The purpose of this Bureau of Mines paper is to provide the mineral industry with current information on high-speed data processing and to illustrate how some of these techniques can be applied to the

    Jan 1, 1962

  • NIOSH
    OFR-37-78 Development Of A Nonprimary-Explosive, Low-Voltage Electric Detonator For Use In Mining Operations

    By P. B. Ritter

    The feasibility of redesigning and adapting the all- secondary-explosive, low-voltage, electric safe detonator for use as a delay detonator has been demonstrated. Experimental results have shown that

    Jan 1, 1977

  • NIOSH
    IC 8182 Sandstone As Dimension Stone

    By Oliver Bowles

    Sandstone, a widely distributed siliceous sedimentary rock, is the third most popular building stone in the United States. It is formed by the breaking down of preexisting rocks by weathering, subsequ

    Jan 1, 1963

  • NIOSH
    IC 8119 Bureau Of Mines Research And Technologic Work On Coal, 1960 ? Introduction

    This report is the 25th in a series summarizing Bureau of Mines research and technologic work on coal and related investigations, and the 7th of these reports to be issued on a calendar-year basis.3 I

    Jan 1, 1962

  • NIOSH
  • NIOSH
    RI 8759 Alumina Miniplant Operations - Overall Mass Balance for Clay-HCI Acid Leaching

    By Dwight L. Sawyer

    To provide technology that can help decrease the dependence of the U.S. aluminum industry on imported bauxite, the main ore of aluminum, the Bureau of Mines is investigating the extraction of aluminum

    Jan 1, 1983

  • NIOSH
    IC 9081 Thermodynamic Properties Of Selected Metal Sulfates And Their Hydrates

    By Carroll W. DeKock

    Thermodynamic data for selected metal sulfates were critically evaluated and compiled as part of the Bureau of Mines program to provide a scientific base for use in developing new technology and predi

    Jan 1, 1986

  • NIOSH
    OFR-115-93 Application Of Cost Engineering To Determine The Optimum Production Rate For Waste Remediation Of Mine Tailings

    By Thomas W. Camm

    The U.S. Bureau of Mines has developed a system for estimating mining and processing costs as a function of process feed rate with the objective of applying this system to abandoned mine tailings and

    Jan 1, 1993

  • NIOSH
    RI 8928 - Large-Scale Dewatering of Phosphatic Clay Waste From Northern Florida

    By Annie G. Smelley

    The Bureau of Mines is testing a dewatering technique for phosphatic clay waste that will recover a portion of the water lost using conventional waste disposal methods and produce solids suitable for

    Jan 1, 1985

  • NIOSH
    RI 7913 Recovery of Lead From Galena by a Leach Electrolysis Procedure

    By J. E. Murphy

    A method is being developed by the Federal Bureau of Mines for recovering lead metal from galena without the generation of SO2. Lead chloride is obtained by leaching lead concentrate at a temperature

    Jan 1, 1974

  • NIOSH
    OFR-79-78 Fabrication And Evaluation Of Optimized Operator Compartments

    By Hanns J. Billmayer

    Optimized Operator Compartment layouts based on previous Bureau of Mines activities in standardization and optimization of controls were designed and installed in three operating vehicles. Two Nationa

    Jan 1, 1976

  • NIOSH
    IC 9204 Characterization Of The 1986 Nonmetallic Mining Workforce

    By Shail J. Butani

    In 1986 the Bureau of Mines conducted a probability sample survey, Mining Industry Population Survey, to measure such employee characteristics as occupation; principal equipment operated; work locatio

    Jan 1, 1988

  • NIOSH
    IC 8194 Methods And Practices In Clay Mining, Processing, And Utilization, Kraftile Co., Fremont, Calif. (563995e0-a413-4a32-9237-1362bb69d852)

    By Alfred Wild

    The Kraftile Co. plant, Fremont, Alameda County, Calif.--the largest producer of glazed, structural wall units west of the Rocky Mountains-- maintains modern processing facilities to evaluate and blen

    Jan 1, 1963

  • NIOSH
    RI 5876 Forced Convection Heating Of Steel Scrap In A Fuel-Fired Vertical Furnace ? Summary

    By R. J. Leary

    Iron and steel scrap has accounted for 45 to 50 percent of the metallics used by the steel industry. In an electric furnace which utilizes a 100-percent cold charge consisting of about 99 percent scra

    Jan 1, 1961

  • NIOSH
    RI 7078 Investigation Of Flame Propagation Characteristics In Layered Gas Mixtures

    By Israel Liebman

    The Bureau of Mines conducted an investigation to determine those factors that are significant in affecting the velocity of flames propagating along the boundary separating gaseous fuel and air. In ad

    Jan 1, 1968

  • NIOSH
    RI 8776 Evaluation of Radium and Toxic Element Leaching Characteristics of Florida Phosphogypsum Stockpiles

    By Alexander May

    The Bureau of Mines conducted studies to determine if phosphogypsum, a waste material from the processing of phosphate rock, contains hazardous toxic materials as defined by the Environmental Protecti

    Jan 1, 1983