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  • NIOSH
    RI 6217 Examination Of An Experimental Iron Blast Furnace After Quenching With Nitrogen

    By J. P. Morris

    An experimental blast furnace in normal operation was quenched by substituting cold nitrogen for the hot blast air. More than 2,200 samples from the stack, bosh, and hearth were taken; 500 of these we

    Jan 1, 1963

  • NIOSH
    MLA 8-88 - Mineral Resources Of The Lemhi Range Study Area, Lemhi And Custer Counties, Idaho

    By Eric E. Cather

    In 1984 and 1986, at the request of the U.S. Forest Service, the U.S. Bureau of Mines conducted a mineral appraisal of the 315,000-acre Lemhi Range study area. This area is located in Lemhi and Custer

    Jan 1, 1988

  • NIOSH
    OFR-113-81 The Spontaneous Heating Of Coal And The Role Of Moisture Transfer

    By J. B. Stott

    The performance of an adiabatic calorimeter for measuring heats of oxidation of coal is assessed and suggestions made for its improvement and calibration. The use of magnetic analysers for measuring

    Jan 1, 1980

  • NIOSH
    RI 3440 Reclamation Of Stripped Coal Land (562de5e2-d1ec-435f-b520-6a08692e4239)

    By Albert L. Toenges

    A phase in strip mining of bituminous coal is the overturning of the surface of the land. The purpose of this report is to acquaint the operators and others interested in stripping with the work that

    Jan 1, 1939

  • NIOSH
    IC 8072 Quadratic Functions For Iron Radiation, 0° To 180° 2? ? Summary

    By Ronald M. Lewis

    Quadratic functions, Q(hkl), are given to six places in increments of 0.01° for 2? from 00 to 90° for FeKa and from 25° to 180° for FeKa1. The wavelengths used for Fe in the computation are those agre

    Jan 1, 1961

  • NIOSH
    Longwall Shield Recovery Using Mobile Roof Supports

    By Allen McComas, Frank Chase, Phyllip Worley

    Longwall mining has gained the reputation as being the safest extraction method in underground coal mines. However, one of the most difficult tasks associated with longwall mining is moving the face

  • NIOSH
    IC 6878 Notes On Testing The Explosibility Of Coal Dusts And A Proposal To Have An International Test Method

    By George S. Rice

    The following paper was presented at an International Conference on Mine Safety Research held at Dortmund, Germany, September 23-28, 1935, inclusive. This conference was attended by representatives of

    Jan 1, 1936

  • 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
    The Mineral Industry Of Other Areas Of The Far East And South Asia ? Bangladesh (fb1342d6-54cb-4d62-8550-0c8c3ee7456a)

    By E. Chin

    The only economically significant mineral exploited in Banglades - during 1981 was natural gas. Nitrogenous fertilizer production was important to the agricultural sector and was totally dependent on

    Jan 1, 1983

  • NIOSH
    RI 3431 House Movement Caused By Ground Vibrations ? Introduction

    By J. R. Thoenen

    For several years the Bureau of mines has been investigating the characteristics of ground vibrations produced by quarry blasts. Considerable basic information has been obtained in the course of this

    Jan 1, 1938

  • NIOSH
    RI 3431 House Movement Caused By Ground Vibrations ? Introduction (f084d160-37aa-4764-86e3-1d24b7a3ece2)

    By J. R. Thoenen

    For several years the Bureau of mines has been investigating the characteristics of ground vibrations produced by quarry blasts. Considerable basic information has been obtained in the course of this

    Jan 1, 1938

  • NIOSH
    RI 3613 Manganese Investigations - Metallurgical Division - 3. Ore-Dressing Studies Of Manganese Ores - Concentration Of Manganese Nodules From Chamberlain, S. Dak. ? Introduction (1766c14f-25bc-49ae-83cb-1d5234e59ac9)

    By F. D. DeVaney

    The low-grade deposits of manganese ores along the Missouri River near Chamberlain, S. Dak., are known to contain one of the largest reserves of manganese in the United States. Manganese occurs as con

    Jan 1, 1942

  • NIOSH
    RI 3613 Manganese Investigations - Metallurgical Division - 3. Ore-Dressing Studies Of Manganese Ores - Concentration Of Manganese Nodules From Chamberlain, S. Dak. ? Introduction

    By F. D. DeVaney

    The low-grade deposits of manganese ores along the Missouri River near Chamberlain, S. Dak., are known to contain one of the largest reserves of manganese in the United States. Manganese occurs as con

    Jan 1, 1942

  • NIOSH
    RI 7388 Columbium Alloy Development With Boron, Hafnium, And Tungsten

    By H. R. Babitzke

    As part of a continuing project to develop refractory metal alloys for high-temperature structural applications, the Bureau of Mines applied solid solution and precipitation strengthening techniques t

    Jan 1, 1970

  • NIOSH
    RI 8720 Recovery of Tungsten From a Hydrothermally Altered Deposit

    By A. E. Raddatz

    The Bureau of Mines is investigating methods for recovering tungsten from domestic resources. A calcine-quench-leach (CQL) technique was developed for the extraction of tungsten from the Golconda, Nev

    Jan 1, 1982

  • NIOSH
    Statistical Summary (6bfb89b7-cae2-4aaa-a701-74d3608baa37)

    By d&apos, Kathleen J. Amico

    This summary appears in Minerals Year-book volumes I and III, which cover mineral production in the United States, its island possessions, the Canal Zone, and the Commonwealth of Puerto Rico, as well

    Jan 1, 1966

  • NIOSH
    IC 8069 An Economic Analysis Of Underground Gasification Of Coal ? Introduction

    By G. D. Bakulev

    Economic Importance of Gasification of Fuel and Brief Outline of Development of Underground Gasification of Coal in the U.S.S.R. The underground gasification of fuel offers a number of economic and s

    Jan 1, 1962

  • NIOSH
    RI 6098 Rapid Determination Of Permeability In Porous Rock

    By Jerry B. F. Champlin

    The successful injection of liquids into subsurface permeable formations for production stimulation, storage, or waste disposal requires a rapid, precise, and accurate method of determining the permea

    Jan 1, 1962

  • NIOSH
    RI 3049 Concentration of Chromite

    By H. A. Doerner

    "The pure mineral chromite, FeO.Cr203, consists of ferrous and chromic oxides, chemically united in equal molecular proportions. Unfortunately, pure chromite as defined above appears to be a rare exce

    Nov 1, 1930

  • NIOSH
    MLA 14-93 - Identified Mineral Resources Of The Needles 1°X 2° Map Quadrangle, California

    By Terry R. Neumann

    This document, prepared for the U.S. Bureau of Mines Regional Mineral Assessment Program, presents data pertinent to the mineral resource assessment of the Needles 1° x 2° map quadrangle (excluding th

    Jan 1, 1993