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Reducing The Fire And Explosion Hazards Of Flame Cutting And Welding In Underground Coal Mines - Preprint 09-007
By W. D. Monaghan
Flame cutting and welding is one of the major causes of fires and explosions in underground U.S. coal mines. On May 20, 2006, a flame cutting operation at the Darby Mine No. 1 led to an explosion tha
Jan 1, 2009
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Economics of Coal for West Coast Power Generation
By Claude P. Heiner
While the title of this paper embraces the entire West Coast, the author, in the interest of simplification. has confined the discussion to California-particularly the central section. California&apo
Jan 1, 1949
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Artificial Geo-Hydrological Zonation
By J. A. López-Molina, S. García, V. Castellanos-Pedroza
"Groundwater inflow into underground constructions may cause hazardous working conditions and environmental problems. It is essential to localize and characterize potential flow paths and to estimate
Jan 1, 2015
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RI 8891 - Evaluation of a Gas-Assisted Cupola
By Victor Spironello
The Bureau of Mines is studying cupola ironmel technology with the objectives of conserving high-quality raw materials through substitution and productivity. In the research re-ported here, a ize was
Jan 1, 1984
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Mill Head Castings - Educating Opinions - Preprint 09-023
By V. Svalbonas
Everybody has an opinion what the quality of a grinding mill head casting should be, yet extremely few take the time, or get the opportunity, to compare their opinions against fitness-for-purpose data
Jan 1, 2009
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Economic Considerations in the Production and Preparation of Coal for the Carbonization Market
By Gerald Blackmore
"This paper suggests that with the settlement of long-term contracts of fifteen years' duration, with prospects of extension, the coal mining industry has, for the first time, a complete commercial ju
Jan 1, 1970
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RI 2341 Smokeless Fuel For Salt Lake City
By G. J. Perrott, H. W. Clark
During the course of the cooperative smoke abatement investigation carried on by the Bureau of Mines , the city of Salt Lake and the University of Utah during 1919-1920 , a study was made as to the su
Apr 1, 1922
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The Production Of Refined Ferromanganese At Cato Ridge Alloys
By R. Burger, M. Masukawa
Cato Ridge Alloys (CRA) is a joint venture company between Assmang of South Africa, Mizushima Ferro Alloy Company (MZK) and Sumitomo Corporation from Japan. Negotiations for the forma
Jan 1, 2004
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RI 4928 Progress Report on Pegmatite Investigations in South Dakota for Fiscal Year Ended June 30, 1951
By D. H. Mullen, S. M. Runke, J. B. Cunningham
"SUMMARYThe coarse-grained granitic pegmatities of the United States have long been a source of many important industrial minerals, because of this, they have been studied intensively by geologists, m
Dec 1, 1952
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RI 9290 - Shield Mechanics and Critical Load Studies for Unsymmetric Contact Configurations
By T. M. Barczak
This U.S. Bureau of Mines report investigates shield mechanics and component stress development in a two-legged longwall shield for unsymmetric canopy and base contact configurations. Previous studies
Jan 1, 1990
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CIM Environmental, Social and Governance Guidelines for Mineral Resource and Mineral Reserve Estimation
By CIM Environmental, Social Responsibility Society
Within the mining industry, the pathway from exploration, to planning, construction, operation and closure has become more complex over the last few decades. The current financial, environmental and s
Sep 8, 2023
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Nitriding Of Ilmenite And High-Grade Slag Fines ? Synopsis
By D. S. van Vuuren
Titanium bearing resources can selectively be chlorinated at temperatures below 200°C if the Ti02 in the feed is nitrided before chlorination. However, the nitriding reaction is highly endothermic, re
Jan 1, 2011
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Coated Gold from Cobar, New South Wales
By Edwards A. B
A table concentrate obtained experimentally by the New Occidental Gold Mines N.L. has unusual interest on account of the presence in it of abundant coated or "black" gold. The concentrate wa
Jan 1, 1941
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RI 9133 - Coreduction of TiCI41 AICI31 and VCI4 To Produce Titanium Alloy Sponge
By Davis E. Traut
TiC14, AIC13, and VC14 were coreduced simultaneously via a Kroll-type magnesium reduction to form an alloy sponge as part of a research effort by the Bureau of Mines to produce titanium alloy powder.
Jan 1, 1987
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The Importance Of Coal - And Coke Properties In The Production Of High Silicon Alloys
By T. Lindstad, V. Myrvågnes
In the production of high silicon alloys, carbonaceous materials like coal, coke, charcoal and woodchips are utilized as reducing agents. Primarily based on historical prices of charcoal compared to f
Jan 1, 2007
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RI 4068 Catron and Sierra Counties Tin Deposits, N. Mex
By P. L. Russell, M. E. Volin, F. L. C. Price, D. H. Mullen
Tin deposits in Catron County, New Mexico, were explored by the Bureau of Mines under authority of the Strategic Minerals Act of August 1939. The investigation covered both lode and placer deposits an
May 1, 1947
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Commissioning and Operating Experience with Gekko’s Gold Ore Treatment Plants
By Tim Hughes, Steve Gannon, Jennifer Abols
"In the past year, two very innovative gold ore processing plants have been designed, built and commissioned by Gekko Systems Pty Ltd. The first plant in Vietnam utilizes conventional crushing and bal
Jan 1, 2007
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Metallurgical Considerations For Recycling Siliceous- Bearing Materials In The Mitsubishi Continuous Copper Converter
By Fumito Tanaka
The Mitsubishi Process is the sole pyrometallurgical process for the continuous production of blister copper from copper concentrates. Continuous converting originates from the application of the pro
Jan 1, 2005
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IC 9375 Longwall And Room-And-Pillar Productivity: A Review Of U.S. Coal Mines
By Suresh K. Bhatt
Although overall worker productivity for U.S. underground coal mines is available, productivity by mining method and seam thickness is not. Mining technology has gone through dramatic changes in the p
Jan 1, 1994
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Research on Reduction-Magnetic Separation of Bayan Obo Ore
Research on Reduction-Magnetic Separation of Bayan Obo Ore
Sep 13, 2010