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Dynamic Gob Response and Reservoir Properties for Active Longwall Coal MinesBy J. A. Marts
Reservoir properties including porosity and permeability distributions in longwall coal mine gobs have direct application to modeling the flow patterns and gas distributions in the gobs. Proper asses
Feb 23, 2014
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Gold-Copper Ores Processing / Flotation Process Optimization By The Development Of An On-Line Expert System (308240b5-f416-4047-a45b-a49d3ac7a2e0)By Y. Breau, F. Robichaud
The Expert System implemented at the East-Malartic mill controls a copper flotation circuit while taking into account the profitability of the operation. Treating a copper gold ore, the flow sheet in
Jan 1, 2002
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Mitigation Of Feather Edging And Validation With Instrumented Bolted BreakerlinesBy S. K. Singh, J. Shepherd
"Feather edging"- a major source of injury and fatal accidents in Australia, South Africa and USA, refers to a phenomenon where the roof, at the goaf edge, falls as a thin wafer of rock often suddenly
Jan 1, 1999
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Occupational Pulmonary DiseasesBy E. A. Metz
Work related pulmonary diseases are in the top TEN causes of occupational disability and death in the United States. Likewise, it also ranks high inmost of the other industrial countries. It is d
Jan 1, 2000
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A New Approach To Fine Solids DewateringBy C. St. J. Lowe
Weir Minerals ? Linatex has developed a new approach to the dewatering of fine solids, particularly mine and process plant tailings and wastes. The Weir process, patented in 2009, uses standard proce
Feb 23, 2014
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When To Use Aluminum In Bulk ExplosivesBy W. A. Crosby
All mine operators using explosives want to maximize explosive performance while minimizing blasting costs. Use of bulk explosive products such as AN/FO, heavy AN/FO, slurries and emulsions has greatl
Jan 1, 1991
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Computer Control Of Burnswick Mining's Flotation Circuits - IntroductionBy Andrew Trusiak
Brunswick Mining, employing approximately 1600 employees, is located 40 km south of the city of Bathurst in north eastern New Brunswick. The mine has operated as two lead-zinc operations - the undergr
Jan 1, 1981
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Not Another HPGR Trade-Off Study!By P. Amelunxen
Over the past several years, the combination of higher energy and steel costs and the recent commercial deployment of high-pressure grinding rolls (HPGR) technology in hard rock mining have led many m
Jan 1, 2011
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Industrial Minerals 2005 - BoronBy S. Hamilton
Occurrences of boron-containing ores are relatively rare on a global basis. The first verifiable use of borax was in the 8th century by Arabian gold and silversmiths. Due to the rarity of the borate
Jan 1, 2006
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Design Development of the I-35 Capital Express Central Drainage Tunnels - NAT2024By Joseph Goessling, Mark Kroncke, James Parkes
The I-35 Capital Expressway (CapEx) Central Drainage Tunnels will serve as a stormwater collection system for the forthcoming I-35 Capital Express Central reconstruction project through downtown Austi
Jun 23, 2024
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Dissolution Behavior Of Silver/Silver Oxides In Ammoniacal SolutionsBy K. N. Han, N. S. Kim, H. Yoon, J. S. Sohn
The leaching behavior of silver and silver oxides in ammonical solutions has been studied. The current study is concerned with an effective recovery of silver from secondary sources such as spent silv
Jan 1, 2002
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Mineral resources in the Portuguese continental shelfBy Raquel Costa, Aldino Campos, Frederico Carvalho Dias, Pedro Madureira, Patrícia Conceição, Ana Filipa Marques, Andreia Afonso, Maria Ana Martins, António Calado, Luísa Pinto Ribeiro
Since its formation in 2004, the Task Group for the Extension of the Continental Shelf (EMEPC) has been collecting hydrographic, geological and geophysical data to support the extension of the contine
Sep 1, 2014
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Some Thoughts On the Current Situation and A Look AheadBy Richard J. Stoehr
In his time on earth, man has mined about 93.3 kt (3 billion oz) of gold. About one-half of this has been produced in the past 35 years. Roughly one-third of this gold is held as reserve in Central Ba
Jan 11, 1984
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Determining Value-Added Opportunities in Industrial MineralsBy Steven B. Van Kouteren
Value added is a loosely used qualifier in the industrial minerals industry. What exactly does it mean? What does it take to make a value-added product? More importantly, how does a company maintain t
Jan 1, 1990
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Optimization Of Heavy Media Cyclone CircuitsBy T. S. Bomar, C. J. Wood
Heavy media cyclones (HMCs) are efficient, high-tonnage devices suitable for upgrading run-of-mine coal in the 50 to 0.5 mm size range. Unfortunately, industrial HMC circuits are often not optimized
Jan 1, 2002
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Effect of Ventilation System Configuration on Purging of Harmful Gases in a Built-in-Place Refuge Alternative with a Borehole Air SupplyBy M. A. Reyes, J. Bickson, J. R. Srednicki
Federal laws mandate the presence of refuge alternatives (RAs) in underground coal mines and provide guidelines for harmful gas removal. After an explosion, harmful gases can follow survivors into an
Jan 1, 2019
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Conversion Of A Port Facility From Import To Export At Longview, Washington, U.S.A.By Irving Hauser
The determination of new ways to cut costs in then times of economic uncertainty is essential in running a successful business. Arco Petroleum Products Company a Division of Atlantic Richfield Company
Jan 1, 1982
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Scale Monitoring Techniques And Control In Alkaline Mill Water Systems - IntroductionBy J. S. Roti
Calcium-based scale precipitation is a common problem in mill reclaim waters. An accumulation of these adherent deposits can result in a rapid reduction in water flow, loss of pump efficiency and even
Jan 1, 1986
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A Step Change in Dragline Performance is Possible Safer. Greener. Lower Operating CostBy R. Adsero
"In view of the decade long decline in worldwide mine equipment productivity and with heavy economic pressures and survival at risk, improvements for those remaining in the game are essential. The lat
Jan 1, 2016
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The "Asbestos" Controversy (2f3df2d7-de6d-4465-be83-7a7ca54c7132)By Earl G. Hoover
For most geologists and miners the term "asbestos" refers to a group of highly fibrous silicate minerals that readily separate into long, thin, strong fibers of sufficient flexibility to be woven, are
Jan 1, 1978