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OFR-3(1)-80 The Development Of A Cross-Pit Overburden Handling System - Volume I - Preliminary Design
By J. Ritchey
This report describes the engineering feasibility and economic advantages of using a mobile bridge-type cross-pit belt conveyor system in conjunction with a large dragline to excavate and transport sp
Jan 1, 1976
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The Beneficial Effects Of Feeding Dry Copper Concentrate To Smelting Furnaces And Development Of The Dryers
By S. L. Chen
Keywords: copper, concentrate drying, steam dryer, dryers By placing additional demands on energy and gas flow, the moisture content of a copper concentrate has an adverse effect on the smelting p
Jan 1, 2006
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IC 7173 Technical Research By The Bureau Of Mines In Oil And Gas Production, Refining, And Utilization ? Introduction
By H. C. Miller
Several agencies of the Federal Government are engaged in research and fact finding relative to petroleum and natural gas, and others are concerned with carrying out the provisions of specific laws th
Jan 1, 1941
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Bulletin 109 Operating Details of Gas Producers
By R. H. Fernald
In 1900, as far as available records show, there were only two producer-gas power installations in the United States. In June, 1915, the number probably exceeded 1,000. Of this number, some 84.5 per c
Jan 1, 1916
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Roof Control Analysis In North River Mine
By Mike Watts
Since the first longwall panel development started in the new mining, (Southern) area, a number of roof falls have occurred in L1 and L2 gate-entries. The longwall was delayed for a total of two month
Jan 1, 2000
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RI 5209 The Three Kids Manganese Deposit Clark County, Nev.: Exploration, Mining, And Processing ? Summary
By A. C. Johnson
The Bureau of Mines explored the Three Kids deposit in 1941 as part of a strategic minerals program. Earlier mining and exploration had established the presence of a substantial tonnage of medium-grad
Jan 1, 1956
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Preliminary Evaluation of Spark Plasma Extrusion
By K. Morsi
The interest in spark plasma sintering has been growing considerable over the past few years. This has been brought about by the unique advantages of the process, which include reduced sintering tempe
Jan 1, 2009
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Teamwork, Technology Key in Rescuing Coal Miners
By Steve Kral
The dramatic rescue of nine Pennsylvania coal miners trapped nearly 90 m (300 ft) underground for77 hours probably would not have happened without the high technology equipment and improved mine rescu
Jan 1, 2002
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Reservoir Engineering Equipment - A New System of Tools for Better Control and Interpretation of Drill-Stem Tests
By B. P. Nutter, M. Lebourg, J. A. McAlister
The Multi-Flow Evaluator (MFE) is a new system of tools providing an original approach in drill-stem testing. It improves control during the testing operation and gives a more accurate evaluation of t
Jan 1, 1966
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Bulletin 228 Estimation of Underground Oil reserves by Oil Well Production Curves
By WILLARD W. CUTLER
This bulletin reviews, in the light of recent experience, the use of production-decline curves in estimating the future production of oil from wells. It deals with the estimation of the reserves of re
Jan 1, 1924
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IC 6746 A Review Of Coal-Mine Fatalities In Indiana During The Fiscal Year, October 1, 1931, To September 30, 1932
By C. A. Herbert
During the fiscal year ended September 30, 1932, there were 27 fatalities in the coal mines of Indiana. Four of this number occurred in small mines employing less than 10 men, over which the State Ins
Jan 1, 1933
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Basicity of Metallurgical Slags
By Yindong Yang
Despite the importance and usefulness of basicity in metallurgical slags, the optimum quantitative expression of it has remained elusive, partly due to the fact that the precise concept of basicity ha
Jan 1, 2001
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Experiences with a New Generation Automated Long Hole Drilling Rigs at LKAB Kiruna Mine in Northern Sweden
By Patrik Ericsson
During the 90?s Atlas Copco and LKAB developed a pioneering fully automatic long hole production drilling system based on the Atlas Copco Simba W469 drill rigs. These drill rigs have since then drille
May 1, 2007
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Coal - Hydraulic Stowing Techniques in Armutcuk Mine, Turkey
By Mehmet Guney
At the Armatcuk mine in Turkey, various modifications of sublevel methods have been tried during the last decade in an effort to eliminate gob fires, dangers from roof falls, and surface subsidence, a
Jan 1, 1969
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RI 6034 Heats And Free Energies Of Formation Of Germanium Dioxide ? Introduction And Summary
By Alla D. Mah
The need for more and better basic thermodynamic data for the oxides of many of the rare metals is evident to anyone who attempts thermodynamic calculations involving these substances. In continuation
Jan 1, 1962
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Investigation of Charge Transfer Resistance at Pyrite Electrodes Modified by Gold and Silver Nanoparticles
By David G. Dixon, Maziar Eghbalnia
"Gold and silver nanoparticles (NPs) were deposited on pyrite at ambient temperature from colloidal solutions prepared by reduction of hydrogen tetrachloroaurate or silver nitrate by sodium sulfide or
Jan 1, 2012
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Flotation Process Optimization Using Outotec Frothcontrol Solution
By M. Mononen, J. Huuskonen, M. Vauhkonen, J. Kourunen, A. Lehikoinen
"A new approach to measure process conditions in flotation cells is presented. Real scale flotation cells in a Zinc circuit are imaged using Outotec LevelSense sensors based on electrical resistance t
Jan 1, 2013
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The Union Bay Platinum Prospect, SE Alaska, a Hydrothermal PGE Deposit
By C. J. Van Treeck
PGE concentrations of 18 g/t occur in the pyroxene rich rocks at the Union Bay Alaskantype complex. This PGE enrichment is hosted in magnetite veins. These veins cross magmatic layering and have an ir
May 1, 2003
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Development and Status of the Treatment Technology for Acid Mine Drainage "Mining, Metallurgy & Exploration (2021)"
By Shuangchun Yang, Le Tong, Ronggui Fan, Cunlei Li
Acid mine drainage (AMD) is difficult to treat due to its physicochemical characteristics, such as high pH and high heavy metal concentrations, so it causes great harm to the environment and human hea
Sep 4, 2020