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RI 6224 Magnetic Susceptibility Of Siderite
By H. E. Powell
A laboratory investigation was conducted by the Bureau of Mines to study the magnetic characteristics and to measure the magnetic susceptibility of the mineral siderite. All susceptibility measurement
Jan 1, 1963
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RI 8354 Geology of the Lower Kittanning Coalbed and Related Mining and Methane Emission Problems in Cambria County, Pa. (9710d8cd-1ed4-4527-b895-4ad77b6e712d)
By A. T. Iannacchione
The Bureau of Mines established geologic factors affecting the mining of the Lower Kittanning coalbed to aid in coalbed minability studies and examined the occurrence of "wants" (places where coal is
Jan 1, 1979
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Bulletin 90 Abstracts of Current Decisions on Mine and Mining
By J. W. Thompson
ORES PROCESS OF ORE CONCENTRATION-PATENTABILITY. The patent issued to Sulman, Pickard, and Ballot, November 6, 1905, and assigned to Minerals Separation and Minerals Separation American Syndicate, for
Jan 1, 1915
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RI 4588 Investigation Of The Mueller Kaolin Deposit Jeff Davis County, Tex.
By W. D. Mcmillan
Kaolin, or china clay, is the term applied to a group of hydrous aluminum silicates. Because of its purity, light color, and refractory properties, kaolin is used extensively in the manufacture of hig
Jan 1, 1949
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OFR-86-76 Study Of Continuous Face Haulage Systems - Introduction
This study relates to continuous face haulage systems in underground coal mines, and was performed by Joy Manufacturing Company for the U. S. Bureau of Mines under the Bureau of Mines Contract No. HO
Jan 1, 1975
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OFR-45-84 Evaluation Of Surface Storage Facilities For Explosives, Blasting Agents And Other Explosive Materials
By J. Roth
The purpose of the present study is to increase the safety of explosive storage. This was accomplished by: a) review of the histories of recent and past magazine explosions to define causes and trends
Jan 1, 1983
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RI 3783 Air & Gas Injection in Oil Fields of Illinois
By Thomas Jenning, C. M. Keithly
"INTRODUCTION This report is one of a series. 4. 5. 6/ concerned with presenting historical development, and operating data on secondary-recovery projects in various States to stimulate interest in so
Nov 1, 1944
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This Is Mining…
Introduction MINING IS THE BRANCH OF INDUSTRY involving the exploration and removal of minerals from the earth (figure 1). Mining is one of the oldest and most important endeavors of humankind, be
Jan 1, 1995
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OFR-91-78 Preprototyple Machine-Mounted Respirable Dust Monitor
By Pedro Lilienfeld
This report describes a program to develop, design, fabricate and subject to environmental testing three prototype collection-sensing devices of an eventual mining-machine mounted automated monitor fo
Jan 1, 1977
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RI 3505 Relationship Of Ash-Fusion Temperatures Of Coal And Coke ? Introduction (6f500829-9d2d-49ca-b0c0-4315af1a4067)
By D. A. Reynolds
A few studies on the relationship of the fusion temperature of the ash on coke to that of the corresponding coal have been made on commercial high-temperature cokes. H. J. Rose3/ in 1921 compared the
Jan 1, 1940
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The Mineral Industry Of Other West African Countries - Benin (e8cbf5f1-567f-42dd-9853-7bc37da6ef95)
By George A. Morgan
There was little change in the mineral industry of Benin in 1986, as the economy remained in the grip of a regional recession exacerbated by failing oil prices, which nullified much of the income from
Jan 1, 1988
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OFR-109-85 Advancement Of Cab And Canopy Design And Use In Coal Mines
By W. W. Aljoe
The use of protective canopies can result in canopy roofing and/or serious restrictions to operator comfort and vision. To document this experience, BCR conducted a field study of cab and canopy desig
Jan 1, 1981
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OFR-72-75 Operations Study Of Selected Surface Coal Mining Systems In The United States ? Abstract Of The Report
The overall objective of this study is to gather operational data from selected surface coal mining systems in the United States, and to assess the potential production and economic capacity of the sy
Jan 1, 1975
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IC 8298 Reconnaissance Of Beryllium-Bearing Pegmatite Deposits In Six Western States - Arizona, Colorado, New Mexico, South Dakota, Utah, And Wyoming
By Henry C. Meeves
The Bureau of Mines, between 1956 and 1963, examined 18 major pegmatite districts in Arizona, Colorado, New Mexico, South Dakota, Utah, and Wyoming to evaluate their content of beryllium, a material i
Jan 1, 1966
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OFR-122(1)-80 Alumina Process Feasibility Study And Preliminary Pilot Plant Design - Task 3 Report: Preliminary Design Of 25 Ton Per Day Pilot Plant - Volume I - Process Technology And Costs
By K. B. Bengtson
This task report provides the process technology, preliminary design, capital and operating costs for a 25 TPD pilot plant to produce cell-grade alumina using a clay/hydrochloric acid extraction - HCI
Jan 1, 1979
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OFR-89-84 Feasibility Of An Underground Hydraulic Coal Mine Near Wilkeson, Washington
By William C. Cooley
A technical and economic study was made of the feasibility of establishing an underground hydraulic coal mine in the Wilkeson-Carbonado coal field approximately 25 miles southeast of Tacoma, Washingto
Jan 1, 1983
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RI 3314 Flotation Of Vermont Talc-Magnesite Ores ? Introduction
By J. Bruce Clemmer
In the experimental concentration of Vermont talc-magnesite ores, talc concentrates and tailings rich in magnesite were obtained. On account of the possible market value of the magnesite, the tailings
Jan 1, 1936
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OFR-3-82 Monitoring Of Mine Air Diesel Pollutants: Tailpipe Emissions Measurement Apparatus, Detector Tube Interferences, And Exhaust And Ventilation System Control
By John H. Johnson
Diesel tailpipe CO, C02, NO, and N02 concentrations by the Emissions Measurement Apparatus (EMA) were found to compare satisfactorily with simultaneous concentrations by instruments in the MSHA engine
Jan 1, 1980
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RI 7356 Effects Of Type Of Cut, Delay, And Explosive On Underground Blasting In Frozen Gravel
By Richard A. Dick
Underground blasting in permanently frozen gravel was studied in a 7-by 12-ft drift by running a nonreplicated 2 X 2 X 2 factorial experiment on the effects of type of cut, delay, and explosive on the
Jan 1, 1970
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RI 3389 Fuel For Permissible Flame Safety Lamps ? Introduction (dd100b79-594f-4764-9931-6ea84d4e88e9)
By A. B. Hooker
Investigations at the Pittsburgh Experiment Station have shown that the satisfactory operation of a flame safety lamp depends not only upon proper design and assembly of the lamp but upon the kind of
Jan 1, 1938