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  • NIOSH
  • NIOSH
    RI 3068 Flotation Tests on Converter Slag

    By Frank S. Wartman

    "The experimental flotation work described in this paper was undertaken to test the conclusions derived from a previous microscopic and chemical study of several samples of converter slag. That study3

    Apr 1, 1931

  • NIOSH
    OFR-25-81 The Mining Instructional Development Institute

    By Kay E. Goldberg

    The Bureau of Mines conducted a study to develop and evaluate a training workshop for mine safety training personnel. The workshop was based on the Instructional Development Institute (IDI) which has

    Jan 1, 1980

  • NIOSH
    RI 7943 Phases and Interdiffusion Between Titanium and Its Mononitride

    By F. W. Wood

    The Bureau of Mines has sought clarification of the Ti-TiN system by studying the phases formed by diffusion reactions between titanium and titanium nitride. Reaction couples were prepared by embeddin

    Jan 1, 1974

  • NIOSH
    Minor Metals And Minerals - Cesium And Rubidium

    PRODUCTION of cesium, cesium salts, and rubidium salts in the United States declined somewhat from 1961 levels; rubidium production was virtually unchanged. Imports of pollucite declined because consu

    Jan 1, 1963

  • NIOSH
    IC 6121 Method and Cost of Mining Zinc in Oklahoma

    By Wm. F. Netzeband

    "The mode of ore occurrence and the methods and costs of mining at one of the zinc-lead mines in the Tri-State zinc and lead district, Oklahoma, are presented in this paper for the information of mine

    May 1, 1929

  • NIOSH
    Field Test With Strain-Gauged Friction Bolts At The Gold Hunter Mine, Mullan, Idaho, USA

    By Jeffrey Johnson, Carl Sunderman, Ted Williams, Stephen Signer, Douglas Bayer

    To measure the loading behavior of friction bolts, researchers at the Spokane Research Laboratory of the National Institute for Occupational Safety and Health (NIOSH) installed strain gauges on the in

  • NIOSH
    RI 5367 Field-Scale Experiments In Underground Gasification Of Coal At Gorgas, Ala. - Use Of Electrolinking-Carbonization As A Means Of Site Preparation ? Summary

    By James L. Elder

    Field-scale experiments were conducted at Gorgas, Ala., from 1951 to 1954. Three reaction paths were formed by electrolinking-carbonization, using electrode spacings of 150, 152, and 155 feet. The coa

    Jan 1, 1957

  • NIOSH
    IC 9212 Material Handling Devices For Underground Mines

    By Ernest J. Conway

    This report presents engineering drawings for six material handling devices for underground coal mines. The devices were designed under a U.S. Bureau of Mines program to reduce injuries from material

    Jan 1, 1989

  • NIOSH
    OFR-59-88 The Potential Impact Of Acid Rain Legislation On The Domestic Aluminum Smelting Industry: Methodology And Documentation ? 1. Introduction - 1.1 Purpose

    By Donald R. Alvic

    For electric utilities serving the aluminum smelter industry in the United States, sulfur oxide (SOx) abatement legislation could bring about increases in the costs of generating electricity. This pap

    Jan 1, 1988

  • NIOSH
    RI 3518 An Experimental Study Of The Ignition Of Firedamp-Air Mixtures By Explosives ? Introduction (de8f492c-70bd-4a77-aef1-3b215d7ff28a)

    By Etienne Audibert

    No satisfactory theory has yet been advanced to explain what takes place when an explosive is fired in a mixture of firedamp and air. The only means of measuring the danger is to fire the explosive in

    Jan 1, 1940

  • NIOSH
    RI 3518 An Experimental Study Of The Ignition Of Firedamp-Air Mixtures By Explosives ? Introduction

    By Etienne Audibert

    No satisfactory theory has yet been advanced to explain what takes place when an explosive is fired in a mixture of firedamp and air. The only means of measuring the' danger is to fire the explos

    Jan 1, 1940

  • NIOSH
    Backfilling Of Cavities Resulting From Borehole Mining - Objective

    As part of the overall development of a borehole mining system -develop backfilling techniques to reduce possible damage to the environment caused by either the cavities or the piles of sand tailings

    Jan 1, 1981

  • NIOSH
    IC 6030 Rock Dusting in Coal Mines

    By D. Harrington, G. S. Rice, R. R. Sayers

    "The Bureau of Mines in Serial No. 2606,4 issued in May, 1924, gave tentative specifications for rock-dusting to prevent coal-dust explosions in mines. Subsequently, a sectional committee of the Ameri

    Mar 1, 1927

  • NIOSH
    RI 6010 Pyrometallurgical Beneficiation Of Offgrade Chromite And Production Of Ferrochromium ? Summary

    By Willard L. Hunter

    The research described in this Bureau of Minus report was conducted to improve the chromium-iron ratio of offgrade chromite. Two methods were used: (1) Iron was selectively reduced from chromite by ca

    Jan 1, 1962

  • NIOSH
    OFR-57-82 Undercut And Fill System For Pitching Coal

    By Arnis Mangolds

    A study of the technical and economic feasibility of using a unique undercut and fill system developed by USBM engineers to mine steeply pitching coal is discussed. A brief resource assessment has ind

    Jan 1, 1981

  • NIOSH
    IC 9506 - Guidelines for Permitting, Construction, and Monitoring of Retention Bulkheads in Underground Coal Mines ? Executive Summary

    By Samuel P. Harteis

    Many mining operations rely on retention bulkheads to provide a barrier between impounded water and active mine workings. However, bulkhead failures can cause catastrophic flooding that puts the under

    Jan 1, 2008

  • NIOSH
    RI 6058 Safety Characteristics Of Normal Propyl Nitrate

    By Michael G. Zabetakis

    Limits of flammability of normal propyl nitrate (NPN) vapor were investigated at ambient and elevated temperatures. Minimum spontaneous ignition and decomposition temperatures were determined with lab

    Jan 1, 1962

  • NIOSH
    OFR-49-75 Seismic Mine Monitor System - Phase IV Report

    By J. C. Fowler

    The field testing of the Seismic Mine Monitor System is described. This system consists of nine geophones buried about 40 feet deep over a ten-square-mile area, the amplifiers and electronics needed t

    Jan 1, 1974

  • NIOSH
    IC 8902 A Review Of Methods For Identifying Scrap Metals

    As part of the Bureau of Mines program for conserving domestic mineral resources, a survey was made of the methods used for identifying scrap metals. Because of the large number of alloys currently be

    Jan 1, 1982