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  • NIOSH
    RI 4149 Concentration of Oxide Manganese Ore from Sheep Mountain Property, Durkee District, OREG.

    By R. R. Wells, W. W. Agey

    "INTRODUCTION Oxide manganese ore from the Sheep Mountain property was of intermediate grade (23.0 percent manganese) and contained silica as the major impurity. The deposit from which the ore was tak

    Nov 1, 1947

  • NIOSH
    RI 4749 Centrifugal Pump Installations In Anthracite Mines Of Pennsylvania

    By William H. Lesser

    A recent survey of pumping plants in the anthracite region of Pennsyl¬vania showed that more than 90 percent of the pumps in use are the horizontal centrifugal types (1).2/ This report on the design

    Jan 1, 1950

  • NIOSH
    RI 5041 National Motor-Gasoline Survey Summer 1953 ? Introduction

    By O. C. Blade

    This report on the properties of motor fuels sold through service stations in the United States was made in accordance with a cooperative agreement between the American Petroleum Institute and the Bur

    Jan 1, 1954

  • NIOSH
    RI 9507 - Cyanide Leaching Chemistry of Platinum-Group Metals

    By P. L. Sibrell

    Previous research by the U.S. Bureau of Mines has shown that autoclave cyanide leaching of used automobile exhaust catalysts for recovery of platinum-group metals (PGM) is technically feasible. The pu

    Jan 1, 2010

  • NIOSH
    RI 5335 Washability Characteristics Of Coal From San Juan County, N. Mex. ? Summary And Introduction

    By W. L. Crentz

    San Juan County, which occupies the extreme northwest corner of New Mexico, contains large reserves of coal in the Fruitland formation and in the Menefee formation of the Mesaverde group. The coals ha

    Jan 1, 1957

  • NIOSH
    OFR-60(2)-80 A Program Plan For Determining Optimum Roof Bolt Tension - Theory And Application Of Rock Reinforcement Systems In Coal Mines - Volume 2 Of 2 (General Bibliography)

    By T. A. Lang

    The objective was to develop a Program Plan of analytical studies and tests for determining (1) the optimum installation tension of a coal mine roof bolt, (2) the most valid bolt support theory or the

    Jan 1, 1979

  • NIOSH
    IC 6514 Mining Methods Of The Molybdenum Corporation Of America At Questa, New Mexico ? Introduction

    By J. B. Carman

    This paper, describing the mining practices and methods at the mine of the Molyb¬denum Corporation of America, is one of a series of similar papers on mining methods in the various mines of the United

    Jan 1, 1931

  • NIOSH
    RI 6282 Analyses of Brines From Oil-Productive Formations in South Arkansas and North Louisiana

    By J. M. Seward, W. D. Dietzman, M. E. Hawkins

    Analytical studies of formation waters are widely used by the petroleum industry as an aid in solving problems such as identifying intrusive waters , corrosion studies , treating injection water , and

    Jul 1, 1960

  • NIOSH
    RI 4980 Mine-Timber Preservation By The Collar Method - Progress Report 1 ? Summary

    By Edward Roberts

    This is a progress report of an investigation by personnel of the Bureau of Mines from June to September 1951 to introduce preservative chemicals into growing timber. It also describes in detail the i

    Jan 1, 1953

  • NIOSH
    RI 6441 determining mine production schedules

    By D. E. Redmon

    Linear programing provides a mathematical technique by which activities can be planned in such a way that an optimal result is obtained. Routine applications of linear programing require only a knowle

    Jan 1, 1964

  • NIOSH
    RI 4454 Investigation Of Running Wolf Iron Deposits Judith Basin County, Mont.

    By Robert N. Roby

    Deposits of iron ore in Judith Basin County, Mont., generally referred to as the Running Wolf deposits, were examined by an engineer of the Bureau of Mines in August 1942. During the Summer of 1943 th

    Jan 1, 1949

  • NIOSH
    RI 4407 Thermochemical Study Of The Stability Relation Of Geikielite And Ilmenite In Rocks

    By Th. G. Sahama

    This paper contains some new heat-of-solution measurements of geikielite (MgTiO3), limonite (FeTiO3), fayalite (Fe2SiO4), and a natural forsterite in mixed acid (HF +HCl) and gives the results of a th

    Jan 1, 1949

  • NIOSH
    IC 6755 The Experimental Mine Of The United States Bureau Of Mines ? Introduction

    By G. S. Rice

    The Experimental Mine of the United States Bureau of Mines is a unique coal mine that serves as a large-scale testing laboratory. It is used primarily for testing the explosibility of coal-dust and ga

    Jan 1, 1933

  • NIOSH
    RI 9347 - Method for Recovering Anhydrous ZnCI2 From Aqueous Solutions

    By B. R. Eichbaum

    To develop technology to assure an ample supply of zinc and to reduce environmental pollution, the U.S. Bureau of Mines investigated alternatives to the roast-leach process for treating complex sulfid

    Jan 1, 1991

  • NIOSH
    RI 6889 Refining Iron-Contaminated Zinc By Filtration And Centrifugation

    By J. A. Ruppert

    The Bureau of Mines investigated methods of refining iron-contaminated zinc to marketable quality and developed a laboratory-scale process in which aluminum, added as a refining agent, reacted with th

    Jan 1, 1967

  • NIOSH
    RI 6300 Analyses of Tipple and Delivered Samples of Coal (Collected During the Fiscal Year 1962)

    By F. E. Walker, S. J. Aresco, J. B. Janus

    The Bureau of Mines has been active in promoting the purchase of coal for Government use under specifications that define the requirements in terms of heating value of the coal , expressed in British

    Jan 1, 1963

  • NIOSH
    RI 2974 Abnormal Pressures In Explosion-Proof Compartments of Electrical Mining Machines

    "One of the functions of the United States Bureau of Mines is to investigate the ability of electrical mining equipment to operate in a gassy mine without danger of igniting explosive atmospheres. To

    Dec 1, 1929

  • NIOSH
    RI 6579 Phosphorus, Chlorine, Sodium, and Potassium in U.S. Coals

    By W. H. Frederic, F. H. Gibson, R. F. Abernethy

    This publication contains the quantitative values for phosphorus , chlorine , sodium , and potassium in United States coals . The samples tested were taken from commercial shipments and have been sele

    Jan 1, 1965

  • NIOSH
    OFR-47C-81 A Design Guide For Explosion-Proof Electrical Enclosures - Part 3 - Final Technical Report

    By P. A. Cox

    Guidelines are provided for the design of explosion-proof electrical enclosures that will meet MSHA certification requirements according to Part 18, Title 30, of the Code of Federal Regulations, and f

    Jan 1, 1985

  • NIOSH
    RI 4525 Investigation Of New Idria Mercury Deposit San Benito County, Calif.

    By Russell R. Trengove

    Exploring for additional ore bodies on the property of the New Idria Quicksilver Mining Co.'s property at Idria, Calif., was done by the Bureau of Mines in cooperation with the Geological Survey.

    Jan 1, 1949