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RI 8360 The Flammability of Coal Dust-Air Mixtures - Lean Limits, Flame Temperatures, Ignition Energies, and Particle Size Effects
By Martin Hertzberg
A comprehensive study of the flammability behavior of air-dispersed coal dust was made using an 8-liter Bureau of Mines system which included the following: (1) An optical probe to continuously monito
Jan 1, 1979
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IC 6972 Gold Lode Mining In The Tobacco Root Mountains, Madison County, Mont. - Introduction
By S. H. Lorain
This paper is one of a series being published by the Bureau of Mines describing the mines and mills and subjects related to mining in western mineral areas. Although mining districts in the Tobacc
Jan 1, 1937
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RI 4825 Properties Of Colorado Oil Shale
By K. E. Stanfield
This report presents the results of analytical studies made on two series of oil-shale samples from the Mahogany ledge of the Green River mine the character of the various grades of oil shale that are
Jan 1, 1951
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RI 6218 Mount Gran Coal Deposits, Victoria Land, Antarctica
By John J. Mulligan
The Bureau of Mines investigated coal deposits at Mount Gran (latitude 76°59' S, longitude 161°07' E), Victoria Land, Antarctica, during the austral summer of 1959-60 as part of the continui
Jan 1, 1963
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RI 6085 Design And Initial Operation Design And Initial Operation Gasification Pilot Plant ? Summary And Conclusions
By G. H. Gronhovd
This report describes the design and initial operation of a slagging gasification pilot plant installed by the Bureau of Mines at the Lignite Research Laboratory, Grand Forks, N. Dak., in 1958-59. The
Jan 1, 1962
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IC 6328 Tantalum
By E. P. Youngman
Tantalum is a rare element ; estimates indicate that there is less tantalum than gold in the earth's crust . After remaining a laboratory curiosity for many years , it was used to a limited extent and
Aug 1, 1930
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Bulletin 206 Petroleum Laws of All America
By J. W. Thompson
Be if enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That deposits of coal, phosphate, sodium, oil, oil shale, or gas, and lands containing s
Jan 1, 1921
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Countries And The Minerals Industry
By NEFE NONE
Possible New U.S. Half-Dollar. - Tile George Washington Commemorative Coin Act, H.R. 3133, was introduced in the House and approved by the House Banking Committee. It would allow the minting of at lea
Jan 1, 1981
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Bulletin 197 Sampling and Examination of Mine Gases
By George A. Burrell, G. W. Jones, Frank M. Seibert
In this bulletin, the style of Bulletin 42 has been closely followed. Much of the material is reprinted on the following pages in its original form, and changes have been made only where manifestly ne
Jan 1, 1926
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RI 6816 Infrared Spectroscopy Studies Of A Xanthate-Galena System
By R. E. Coleman
The molecular species occurring at the mineral-reagent interface of the galena-aqueous potassium ethyl xanthate system was studied by developing a technique for using an attenuated reflection method i
Jan 1, 1966
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OFR-42-88 Methods For Assessing Critical Nonroutine Mine Health And Safety Skills
By Henry P. Cole
A comprehensive review of published research was carried out to identify methods for teaching and assessing critical but nonroutine skills needed for coping with emergency situations. Specific methods
Jan 1, 1988
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Bulletin 146 Technology of Salt Making in the United States
By W. C. Phalen
During the search for deposits of soluble potash salts in the United States, carried on by the United States Geological Survey, much infor- mation was collected on the salt resources and industry of t
Jan 1, 1917
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OFR-83(1)-78 XVI International Conference On Coal Mine Safety Research - I Electrical Apparatus - Study Of Means For Increasing Intensity Of Current That Can Circulate Through An Intrinsically Safe Resistive Circuit - Introduction
By A. Monomakhoff
If a conductor traversed by an electric current is broken, a conduction forms in the air between the two broken ends of the wire. This conduction manifests itself in an initial phase by an electric sp
Jan 1, 1975
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IC 7714 Frost-Control Practices And The Prospective Use Of Atnthracite ? Summary And Conclusions
By J. D. Clendenin
Systematic practices for protecting crops from frost damage began in the United Metes more then 40 years ago when the Weather Bureau Fruit-Frost Warning Service was organized; however, various practic
Jan 1, 1955
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IC 8651 Bureau Of Mines Energy Program, 1973
By John D. Spencer
Research on the development of new and improved methods for the discovery and production of oil and gas and production of fluid fuels from coal continued to be the major thrust of the Bureau of Mines
Jan 1, 1974
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IC 8356 Analyses Of Natural Gases, 1966 ? Introduction
By B. J. Moore
This publication contains routine analyses and related source data for 374 natural gas samples from 24 States and 5 foreign countries. These samples were collected during calendar year 1966 as a part
Jan 1, 1967
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IC 8923 Aluminum From Domestic Clay Via A Chloride Process - The State-Of-The-Art
By A. Landsberg
Kaolinitic clays are potentially a vast domestic resource for aluminum. Utilization of this resource could decrease or eliminate the nearly complete dependence of the United States on foreign raw mate
Jan 1, 1983
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RI 4662 Solvent Extraction Of Coal By Aromatic Compounds At Atmospheric Pressure
By C. Golumbic
Most early research on solvent extraction of coal has been concerned with the molecular structure of coal. Although rush work is continuing, practical aspects of the subject also are being emphasized.
Jan 1, 1950
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RI 8906 - Electrochemical Determination of Thermodynamic Properties of Bismuth Sesquioxide and Stannic Oxide
By Seth C. Schaefer
The Bureau of Mines investigated the thermodynamic properties of Bi203 (bismuth sesquioxide) and Sn02 (stannic oxide). Standard Gibbs energies of formation (AGfO) of these compounds were determined wi
Jan 1, 1984
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RI 9162 - Roof Truss Contact Forces
By J. H. Stears
Increasing use of Birmingham and other roof trusses prompted a Bureau of Mines study of support forces produced on a mine roof by these members. Equations, obtained from laboratory and field tests, ar
Jan 1, 1988