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Comparison Of 2400 And 4160 Volt Distribution Systems For ConcentratorsBy R. M. Wilson
Concentrating plants, in common with other types of industrial plants, cannot operate without lectric power. The elctric distribution system and utilization equipment; therefore, must be carefully con
Jan 1, 1958
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Setting Of The Giant Muruntau Gold Deposit: Implications For Ore GenesisBy A. R. Wilde
The Muruntau gold deposit is situated in the Kyzyl Kum Desert of Uzbekistan. It is currently being mined in the world's largest open pit gold mine with production believed to be of the order of t
Jan 1, 1999
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Laboratory Evaluation Of Sodium Sulfide Injection To Facilitate Restoration Of In Situ Leached Uranium Ore Zone (12e4f5b9-73ec-4d36-86f4-b19256e5be9b)By W. J. Martin
At the termination of mining, the quality of ground water in the ore-zone aquifer must be returned to a condition predetermined by the permitting agency. To immobilize the redox-sensitive elements (e.
Jan 1, 1986
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Summary Of Performance Of Shield Type Supports In The U. S. ? IntroductionBy Walter von der Linden
On April 14, 1975, Consolidation Coal Company began to operate a longwall face in their Shoemaker Mine using shield supports. This was the first time that shield supports were used in the United State
Jan 1, 1976
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Calcium Carbonate Use As Filler IncreasesBy M. Bleeck
Calcium carbonate (CaCO3) is one of the most ubiquitous and versatile minerals found in the earth's crust. Its availability, attractive physical properties and relatively low processing cost ma
Jan 1, 1998
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Causes And Mechanisms Of Massive Pillar Failure In A Southern West Virginia Coal MineBy A. W. Khair
This paper deals with the causes and mechanisms of pillar failure in a southern West Virginia coal mine. The conclusions are based on in-mine observations and analysis of mining methods, eyewitness ac
Jan 1, 1983
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Underground Placement Of Coal Combustion Byproducts In Central Illinois: A Case StudyBy H. Sevim
Placement of coal combustion byproducts into abandoned sections of underground coal mines for the purpose of subsidence mitigation has been investigated in Illinois. Several handling and transportatio
Jan 1, 1998
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Drilling-And-Blasting For Small TunnelsBy Robert S. Mayo
My subject today is "Drilling-and-Blasting of Small Rock Tunnels". I am sure that there will be some people, primarily college students but perhaps Consulting Engineers, who will say: "Drilling-and-Bl
Jan 1, 1981
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Geostatistical Methods For The Estimation Of Minable Reserves In Stratiform Uranium Deposits (9e200d18-6131-4dd7-b224-0fbc6b7292bf)By M. G. Hester
The ore reserve modeling of stratiform uranium deposits to be mined by selective underground mining methods must be done with consideration of the erratic nature of the ore forming processes that prod
Jan 1, 1985
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Slurry-Flow Pressure Drop in Pipes With Modified Wasp MethodBy M. Tanaji
Over the last many decades, a significant amount of research has gone into the domain of slurry transport. However, design engineers still face many challenges with respect to prediction of pressure d
Feb 23, 2014
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Surface Thermodynamics And Extended DLVO Theory Of Leptospirillum Ferrooxidans Cells? Adhesion On Sulfide MineralsBy A. Vilinska
The adhesion of Leptospirillum ferrooxidans bacterial cells onto the sulfide minerals pyrite and chalcopyrite was evaluated using two different physical-chemical approaches; thermodynamic and extended
Jan 1, 2011
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Asamera’s Cannon mine is largest North American underground gold mine to become operational this yearBy Tim Neil, O&apos
Introduction On the banks of the Columbia River, about halfway between Seattle and Spokane, sits Wenatchee, WA. It calls itself "the apple capital of the world." And it has a gold mining history that
Jan 12, 1985
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Rapid Reduction Of Iron Ore Concentrates In A High Temperature Rocket Combustion ReactorBy G. Kazonich
The high costs and environmental problems associated with making iron and steel in the United states is driving the development of new technologies to replace the blast furnace. A prototype reactor in
Jan 1, 1993
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Why Bother With Computer Control?By P. F. Mataich
"Why bother with computer control?" This question and others like it have been heard over and over again by those who have tried to convince operating men that there are sound merits to installing a p
Jan 1, 1965
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Chemical Extraction of Rare Earth Elements from Coal AshBy X. Zhu, L. Chen, R. Guru, M. Peiravi, M. Mohanty, L. Ackah, B. Xu
"The overall goal of this study was to develop a suitable flowsheet to extract rare earth elements (REEs) from coal ash. Only the findings from the first part of this study is being reported at this t
Jan 1, 2017
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Predicting Crushing Results -The Bouncing Ball TheoryBy Ronald B. DeDiemar
It is generally held that cone crusher application technology is strictly an art and thus subject to the vagaries of emphirical and/or trial and error judgments. While this is basically true, certain
Jan 1, 1977
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A Review Of The Programs And Activities Of The Generic Mineral Technology Center For Respirable DustBy Robert L. Frantz
The U.S. Bureau of Mines (USBM) established on August 15, 1983, a Generic Mineral f Technology Center (GTC) for Respirable Dust within the Mining and Mineral Resources Research Institutes (MRIs) at Th
Jan 1, 1986
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Influence of Feed Particle Size on Upgrading Selectivity of Scavenger Stage of Industrial Copper Ore FlotationBy A. Bakalarz, M. Duchnowska
"The copper sulfide ore from the Legnica-Glogow Copper Basin in Poland, which is processed by KGHM Polska Miedz S.A., consists of three lithological fractions: dolomitic, sandstone and shale. The copp
Jan 1, 2015
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Improving estimation of the accuracy of the personal dust monitor (PDM) - SME Transactions 2011By S. J. Page
The personal dust monitor (PDM) is a combined tapered element oscillating microbalance (TEOM) respirable dust monitor and cap lamp, configured to have dimensions and weight similar to those of a lead-
Jan 1, 2011
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Economic Discussion Of New Solvent Extraction TechnologiesBy R. Brantley Sudderth
There are three broad categories in which most solvent extraction technology can be distributed?: 1) reagents, 2) equipment, and 3) systems. Reagents which are now used in commercial solvent extractio
Jan 1, 1977