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Recovering Fine-Size Coal from Alabama Washer Wastes Using Humphreys Spiral (74c21011-80c8-4eb1-abad-b657833f3ad4)By James S. Browning
The Mineral Resources Institute and State Mine Experiment Station of the University of Alabama conducted Humphreys spiral tests on fine coal waste from nine preparation plants of Alabama strip mining
Jan 1, 1980
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Deceased MembersMembers whose deaths were reported from Mar. 5, 1919, to Apr. 5, 1920. Elected Died 1895 ANDERSON, ROBERT HAY 1920 1916 ATWATER, M. W 1919 1905 BARD, D. C 1920 1893 BECKER, GEORGE F 1919 1914 B
Jan 1, 1923
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Paradise Peak precious metals mill begins production ahead of schedule and under budgetBy L. J. Buter, D. J. Collins
Introduction FMC's Paradise Peak gold mine was discovered by staff geologists in July 1983. Located south of Gabbs, in western Nevada, the deposit contains about 11 Mt (12 million st) of ore gra
Jan 12, 1986
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IC 6837 Blasting Practices And Explosives Accidents In Utah Coal Mines ? IntroductionBy D. J. Parker
The ease of ignition and violence of explosion of Utah coal dusts, together with the large volumes of methane given off in some of the mines of the State, made it imperative to abandon obsolete equipm
Jan 1, 1935
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Open Pit Production Scheduling Optimisation - Why the Mining Industry Needs a New Phase Design ApproachThe long-term production schedule of open pit mines that maximises the net present value (NPV) of a given project relies on the proper design of phases (pushbacks) within the ultimate pit limits. Ther
Dec 6, 2010
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Noncoal Contractor Mining Facts ? 2005The Mine Safety and Health Administration (MSHA) defines an independent contractor as any person, partnership, corporation, subsidiary of a corporation, firm, association or other organization that co
Jan 1, 2008
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Dissolution of Millerite in Copper(II) Chloride Solutions: A Kinetic StudyBy R. C. Hubli
Copper (II) chloride has proven to be an efficient lixiviant for copper sulphide ores and secondary sources of copper such as scrap. Nickel sulphides are generally associated with copper ores and copp
Jan 1, 1996
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IC 7316 Permissible Mine Equipment Approved During 1944By A. B. Hooker
A list of permissible mine equipment, tested and approved by the Bureau r. Mines previous to January l, i-)4, , was published in Bureau c Moines In ornation Circular 7207.3/ The l ,.t c -. that dote w
Jan 1, 1945
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Significance Of Measured And Modeled Unsaturated Flow Results In Heap Leach Materials Using Large Diameter Column Tests ? Preprint 09-091By V. Galla
In the present paper, two large diameter columns 2 m tall and 1.3 m diameter filled with crushed (finer) and run off mine (coarser) heap leach materials respectively were used to perform unsaturated f
Jan 1, 2009
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Anthracite Mine Fires: Their Behavior And Control - IntroductionBy G. S. Scott
Mine fires have occurred since the mining of coal was begun, and they are still occurring. The resulting economic waste may become considerable (219),3 especially if a fire is allowed to assume major
Jan 1, 1944
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RI 4273 Survey of Commercial Aviation-Gasoline Characteristics March 1947 ProductionBy Nancy Potts, M. G. Barker, W. C. Holliman
"SUMMARYThis report on the characteristics of commercial aviation gasolines presents compilations of inspection test data furnished on their products by manufacturers of commercial grades of aviation
May 1, 1948
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Institute of Metals Division - Diffusion in the Gold-Indium SystemBy J. D. Braun, C. W. Powell
Diffusion between gold and indium at two temperatures below the melting point of indium (155.4oC) was investigated. The major, component of the diffusion zone was determined to be AuIn2; the other,
Jan 1, 1964
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Institute of Metals Division - Comments on the Theory of Continuous Zone-Melting (TN)By John K. Kennedy
ThE basic equations describing continuous zone-melting via the zone-void method were reported by Pfann. Using these equations, a theoretical study was undertaken in this laboratory on the effect of th
Jan 1, 1964
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IC 7130 Testing Respiratory Protective Equipment For Approval ? IntroductionBy H. H. Schrenk
The purpose of respiratory protective equipment is to prevent the inhalation of harmful or objectionable atmospheres. Although constituents or contaminants that may render an atmosphere irrespirable o
Jan 1, 1940
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Plant Trial of an Under-belt Capacitance and Gamma-Ray Backscatter Gauge for on-Belt Determination of Moisture in CoalA non-contacting under-belt capacitance and gamma-ray backscatter technique has been developed for the on-line measurement of moisture in coal. In this technique, moisture was correlated with radio fr
Jan 1, 1989
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Presented at the 25th International Conference on Ground Control in MiningBy David Dye
Good morning, everyone, and thanks Syd for that fine introduction. I am honored to be here to help you celebrate 25 years of advancement and success in the important field of ground control. I wou
Jan 1, 2007
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Gas-Producer Practice At Western Zinc PlantsBy G. S. Brooks
WITH the gradual depletion of the natural-gas pools of the Kansas district, together with the uncertainty of further cheap fuel developments, some. of the western zinc companies turned to the coal fie
Jan 9, 1919
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A High Temperature Chemical Processing Route to Recycle Spent Nd2fe14b (Neo) MagnetsBy William D. Swank, Prabhat K. Tripathy, Tedd E. Lister, Eric S. Peterson, Delon C. Haggerd
More than half of the primary neodymium, produced directly from ores, is being used to manufacture neo magnets. Neodymium, being a critical element in supply, has attracted considerable interest world
Jan 1, 2014
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New York Paper - Comparative Notes on Steel-Rail RollingBy Robert W. Hunt
I have frequently stated that while the chemical composition of steel is important, yet even greater importance is connected with the mechanical and heat treatment of the metal. During the past year I
Jan 1, 1914
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Production - Domestic - Oil and Gas in Mississippi during 1944By H. M. Morse
This report on oil and gas development in Mississippi covers the period from Jan. I, 1944, to Dec. 31, 1944: Salt Domes During the year six salt domes were drilled for sulphur, but no commercial
Jan 1, 1945