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Removal of copper from magnetite concentrates by chlorination
Two concentrates from Palabora, in South Africa, containing 0.056-0.068% undesirable Cu and 0.8 or 2.2% Ti, were chlorinated with air:chlorine ratios of 10:1, 15:1 and 20:1 at temperatures between 1 2
Jun 21, 1905
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MLA 52-83 - Mineral Investigation Of The Tunnel Ridge Wilderness Study Area CA-030-402 (BLM), Trinity County, California ? Summary Statement
By Richard S. Gaps
The Derby and Alexander Claim, located within the Tunnel Ridge Wilderness Study Area (WSA), has placer gold resources. No lode deposits are known within the area, but lode gold deposits are found with
Jan 1, 1983
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The Development of Sintering and Smelting Practice at Mount Isa Mines, Queensland
By Blott S. F
The smelting plant and equipment at Mount Isa, as originally designed and built, was described by J. M. Callow (1) *.F. A. Forward (2) described alterations and additions to the plant and discussed th
Jan 1, 1939
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Preliminary Investigations Into the Processing and Properties of Al-Cnt Composites
By K. Morsi
Carbon nanotube (CNT) reinforced metallic composites have been recently generating significant scientific interest, due to their expected superior properties compared with other composites. Out of the
Jan 1, 2009
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Progressive Failure Of The V-Day Mine And A Comparison With Other Similar Failures In Illinois
By G. C. Marino
The performance of the V-Day Mine near Danville, Illinois has been evaluated from data extending over about a 20 year period. The area included in this study involves over 16 acres. Essentially this e
Jan 1, 1990
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RI 9452 - Characteristics of Ultrasonic Ranging Sensors in an Underground Environment
By W. H. Strickland, R. H. King
Ultrasonic ranging sensors are inexpensive, have no moving parts, have no lenses to clean, are normally small and unobtrusive, and can measure distances through moderate amounts of dust, smoke, and hu
Jan 1, 1993
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Drilling Equipment for Difficult Coring Conditions A New Type Core Lifter and Triple Tube Core Barrel
Considerable improvements in diamond drilling equipment have been made since the early 1950s. A recent drilling programme, however, at Williamtown, near Newcastle, carried out by the Joint Coal Board
Jan 1, 1967
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Reducing Mercury Production at Bald Mountain Gold Mine
By Jim Wickens, Vince Lofftus, Mark Kravetz
"This paper discusses how Bald Mountain Gold Mine (Ely, NV) dramatically reduced mercury production by treating process solutions with a liquid reagent based on organic sulfide chemistry. Cherokee Che
Jan 1, 2001
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Experimental Shaft Machine for Nuclear Waste Disposal
By Dennis Ofiara, Michael Lewis
An experimental 1.75 meter Shaft Boring Machine was designed and manufactured by The Robbins Company. The drill was used by contractor Drillcon Raise AB to drill test shafts at an SKB underground test
Jan 1, 2005
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Processing researchers continue efforts to streamline US mining
By P. Rosten
US mine production of iron ore in 1984 showed some improvements compared to 1983. But reduced demand from the iron and steel industry caused temporary shutdowns of many iron ore mines and pelletizing
Jan 5, 1985
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New trends in underground mine communications
By Raymond C. Voige
"The use of current electronic technology in the design of new underground mine communications equipment is providing improved and expanded voice communications which can, in turn, contribute to impro
Jan 1, 1981
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RETC 2023 Full Proceedings - RETC2023
By Frank Pepe, Nestor Garavelli
The 2023 Rapid Excavation and Tunneling Conference (RETC) will be held in Boston, MA and will include the presentation of 133 papers divided into 20 technical sessions during the 3 day conference that
Dec 1, 2023
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OFR-140(2)-83 Development And Fabrication Of A Continuous Miner Training System
By C. W. Morris
The continuous miner training system provides classroom materials training aids, and a continuous miner simulator to provide a short, intensive instruction and skills development program for training
Jan 1, 1982
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RI 7790 Methane Control By Isolation Of A Major Coal Panel-Pittsburgh Coalbed (64d8fde6-2783-4e55-b6e4-9e5a47a1fed9)
By Charles Findlay
As one of its projects for degasification of major panels of coal prior to mining within them, the Bureau of Mines conducted methane emission studies during development of a set of three headings 1,80
Jan 1, 1973
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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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Presentation #6 - Rapid Load Testing: A New Choice For Pile Testing
By Michael D. Justason
...a global perspective... In March of 2000, the Japanese Geotechnical Society added "Rapid Load Testing" to their national standard for pile testing. In the year 2000. it is estimated that th
Jan 1, 2001
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Industrial Materials - Water Resources of the Mississippi Embayment East of the Mississippi River
By E. H. Boswell, E. M. Cushing
The Mississippi embayment east of the Mississippi River is part of a vast geologic and hydrologic province. The abundance of water available is largely responsible for the agricultural history of the
Jan 1, 1969
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Numerical Simulation Studies on Effects of Explosion Impact Load on Underground Mine Seal Mining, Metallurgy and Exploration (5cd6bb51-d24c-4ceb-bdd2-327b1ac6637a)
By Congling Shi, Marek Borowski, Yue Wang, Jianwei Cheng, Xixi Zhang, Xuan Xu
As the first barrier to prevent accidents caused by explosions in underground coal mines, the integrity and stability of mine seals have great effects on mine workers’ lives and underground production
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Recycling of cadmium from domestic, sealed NiCd battery waste by use of chlorination
By A Cox
It has been demonstrated that all the cadmium from spent batteries, typically 4 g per battery, can be recovered by burning polyvinyl chloride waste to yield hydrogen chloride; this reacts to produce
Jun 21, 1905
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RI 6045 Radioactive Waste Disposal In The Shiprock-Type Uranium Milling Flowsheet ? Summary
By K. E. Tame
The Bureau of Mines is studying possible modifications in conventional uranium ore-processing steps to confine and permit controlled disposal of radioactive wastes. A potential method of minimizing po
Jan 1, 1962