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IC 8182 Sandstone As Dimension Stone
By Oliver Bowles
Sandstone, a widely distributed siliceous sedimentary rock, is the third most popular building stone in the United States. It is formed by the breaking down of preexisting rocks by weathering, subsequ
Jan 1, 1963
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RI 8059 Composition of Lead Sinter
By W. M. Dressel
In producing feed for a lead blast furnace, concentrates analyzing 70 to 80 pct Pb are sintered to produce a physically acceptable low-sulfur product which contains only about 50 pct Pb. Mixtures of P
Jan 1, 1975
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RI 2811 The Flotation of Oxidized Ores
By Thomas Varley
"The literature on flotation of oxidized ores except for patents (especially for reagents) is very sparse. The Bureau of Mines in 1936, published a circular on the subject, by Ralston and Allen. The
Jun 1, 1927
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IC 7675 Raw Materials For Aluminum Production ? Summary
By D. D. Blue
To insure domestic production of aluminium for, essential civilian and defense uses, the Government, under authority of the Defense Production Act of 1950, programed and promoted an aluminum-expansion
Jan 1, 1954
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Formula Predicts The Spontaneous Combustion Potential Of Bituminous Coals ? Objective
To predict the spontaneous combustion potential of bituminous coals using a simple expression based on an easily acquired coal property. Background Approximately 20% of underground coal mine fir
Jan 1, 1989
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RI 5591 Properties Of Titanium-Vanadium-Cobalt Alloys ? Summary
By J. D. Ramsdell
To obtain information on the effects of cobalt on microstructure and tensile properties of titanium-vanadium-cobalt alloys, the composition ranges of 4 to 16 percent vanadium with 1 to 4 percent cobal
Jan 1, 1960
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Experience Of Field Measurement And Computer Simulation Methods For Pillar Design
By Winton J. Gale
Coal pillar design has been based on generalized formulas of the strength of the coal in a pillar and experience in localized situations. Stress measurements above and in coal pillars indicate that t
Jan 5, 1999
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RI 9072 - Continuous Flotation Testing To Recover Cobalt From Missouri Lead Ores
By W. L. Cornell
The Missouri lead ores are the only domestic sources of cobalt presently being mined and processed for other materials. They represent the best short-term solution for meeting up to 13 pct of the Nati
Jan 1, 1987
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IC 8005 Flammable Materials: A Lecture Demonstration ? Introduction And Summary
By M. G. Zabetakis
This publication contains highlights of a 4-hour lecture and demonstration by the Bureau of Mines on the fire and explosion hazards of flammable liquids and solids, oxidizing materials, corrosive liqu
Jan 1, 1961
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RI 6043 Recovery Of Mineral Values In Cupriferous And Nickeliferous Pyrrhotite ? Summary
By Oliver C. Fursman
These investigations were conducted to determine conditions for recovery of nickel and copper from Funter Bay, Alaska, sulfide ore and recovery of nickel from nickel-silicate ore, Nickel Mountain, Rid
Jan 1, 1962
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RI 3105 Flotation of Low-Grade Phosphate Ores II.
By H. M. Lawrence, E. Roca
"INTRODUCTION Of the phosphate rock deposits of the United States that are being exploited actively at present, the land-pebble area in Florida is the largest producer. In recent years the land-pebble
Aug 1, 1931
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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
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RI 3031 Acrolein as a Warning Agent for Detecting Leakage of Methyl Chloride from a Multifle Refrigeration System
By H. H. Schrenk, W. P. Yant, F. A. Patty
"INTRODUCTION In accordance with the outline of investigation described in a previous report 5 of the Bureau of Mines dealing with the use of acrolein for detecting leakage of methyl chloride from uni
Sep 1, 1930
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OFR-158-81 Ground Fault And Overcurrent Protection Criteria For Coal Mine AC Distribution Systems
By John A. Kiefer
Ground fault and overcurrent protection criteria for coal mine a.c. distribution systems were examined under a Bureau of Mines funded investigation. The report begins with a literature review which di
Jan 1, 1980
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The Mineral Industry Of Other Areas Of The Far East And South Asia - Bangladesh (541c7bda-6ca8-4dc8-a808-237ef08a52f2)
Mineral production was of little significance in the country's economy, and Bangladesh was not a world-ranked producer of any mineral commodity during 1977. Natural gas was the most important min
Jan 1, 1981
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IC 8176 Bureau Of Mines Boiler-Water Service ? Introduction (6f2e9b1e-2f49-4ea8-8219-0bf417d911f0)
By A. A. Berk
Other Federal agencies have been coming to the Bureau of Mines for help with the purchase and utilization of fuel, largely coal, almost since the day the Bureau was created in 1910. The requests cover
Jan 1, 1963
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OFR-104(4)-80 Selective Placement Of Coal Strip Mine Overburden In Montana - IV. Hydrogeologic Studies
By D. J. Dollhopf
This research was part of an effort to investigate means of reestablishing non¬polluted hydrological systems in areas where surface mining directly impacts shallow ground-water resources. Chemically
Jan 1, 1979
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OFR-62(3)-74 Analysis Of Ore Handling Systems In Underground Metal Mines For Improved Safety And Efficiency - Phase 2. System Improvements And Research Recommendations
This report covers the results of an industrial engineering study that assessed the safety and efficiency of underground ore handling in U.S. metal mines. Significant conclusions that will be of benef
Jan 1, 1974
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IC 9100 Beryllium Availability-Market Economy Countries - A Minerals Availability Appraisal
By Audrey A. Soja
The Bureau of Mines investigated beryllium resources, production methods, and production costs to estimate the quantity of beryllium available for future use. Eight mining districts and 12 deposits ar
Jan 1, 1986
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RI 7886 Field Studies on an Unsupported Roof, York Canyon Coal Mine, Raton, N. Mex.
By Raymond M. Stateham
Infrared and displacement studies were made of an unsupported roof in Kaiser Steel Corp.'s York Canyon coal mine, Raton, N. Mex. Monitoring of the roof continued until the roof over the area was
Jan 1, 1974