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Remote-Control Monitoring Cuts Maintenance Costs
By Michael W. Lewis
The latest downturn in the world’s metal prices has forced many mining companies to focus on cost reduction and productivity improvements to remain competitive. Maintenance represents a significant p
Jan 1, 2000
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Cold-Model Study on the Maximum Penetration Distance of the Injection Lance in a Kaldo Furnace Mining, Metallurgy and Exploration (ce6397bf-f438-41da-92c1-b98240259c35)
By Manuel Pérez-Tello, María M. Salazar-Campoy, Óscar Rodríguez-Hoyos
A common problem during the operation of the Kaldo furnace is the formation of accretions and blockage of the injection lance due to splashing. This typically occurs during the processing of anodic sl
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Cold-Model Study on the Maximum Penetration Distance of the Injection Lance in a Kaldo Furnace Mining, Metallurgy and Exploration
By Manuel Pérez-Tello, María M. Salazar-Campoy, Óscar Rodríguez-Hoyos
A common problem during the operation of the Kaldo furnace is the formation of accretions and blockage of the injection lance due to splashing. This typically occurs during the processing of anodic sl
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Industrial Minerals Review 2011
Editor?s note: Each year, the June issue of Mining Engineering features an industrial minerals review. Several people put in a fair amount of time in developing the material for this issue, all the
Jan 1, 2012
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An American Down Under Living And Working In Australia - Introduction
By J. G. Pippenger
The mining industry has been Australia?s major economic driver over the past decade, contributing 8% to Australia?s Gross Domestic Product and 26% of Australian Stock Exchange Market capitalisation.
Jan 1, 2011
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New Dragline Bucket Improves Stripping Efficiency
By Dean Bray
During the past three years, a new rear-dumping dragline bucket technology has been patented, developed and tested at North Dakota coal mines. Field testing has shown that this new concept in draglin
Jan 1, 1999
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Remediating Historic Mine sites in Colorado
By James Dunn
“The strongest argument of the detractor (of mining)is that the fields are devastated by mining operations ...They argue that the woods and groves are cut down, for there is need of an endless amount
Jan 1, 1999
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Petrographic Characterization Of Economizer Fly Ash
By B. Valentim
Policies for reducing NOx emissions have led power plants to restrict O2, resulting in high-carbon fly ash production. Therefore, some potentially useful fly ash, such as the economizer fly ash, is di
Jan 1, 2009
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Zinc Alloys Replace Bronze in Mining Equipment Bushings and Bearings
By Tony S. Calayag
Throughout the mining industry today, new bearing materials - ZA* high-performance zinc-aluminum alloys - are reducing costs of maintaining and rebuilding a wide range of equipment. As replacements fo
Jan 7, 1983
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Concentration of High-Sulfur Copper Ore Using a Three-Product Magnetic Flotation Column
By Rongdong Deng
A tower-like magnetic system comprising eight permanent magnets was installed at the center of a flotation column to separate chalcopyrite and pyrrhotite minerals. A cyclonic flotation was installed w
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Microcomputers and Mining : Geology and Exploration
By Thomas C. Shapiro
This is the second in a series of articles on microcomputers and applications in the minerals industry. The first article (ME, Feb., page 129) discussed microcomputer terms and concepts. This article
Jan 3, 1984
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Antelope Uranium Project: Comparison of ISR and Heap Leach Extraction
By Douglas Beahm
Energy Metals Corp. (EMC) holds numerous mineral properties in the northern portion of the Great Divide Basin. The JAB property is one of several potential properties being planned for development as
Jan 1, 2007
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Sustainable Deepsea Mining - Overview on recent activities in Germany
By Leonard Weixler, Peter Halbach, Michael Jarowinsky, Johannes Post
Germany as an industrial nation is highly dependent on the import of mineral or metal resources. Sources which have not been considered until now are the marine mineral resources (MMR), which in recen
Sep 1, 2014
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Pneumatic Backfilling - A Method For Controlling Abandoned Mine Subsidence
By Steve Jones
Minor subsidence damage to the Burgettstown Junior-Senior High School building and grounds near Burgettstown, Washington County, Pennsylvania, prompted an investigation of the site in early 1985 by th
Jan 1, 1986
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Project and Mining Geology
By Donald A. Ranta
Every mineral project or mine is based on a geologic entity-an ore (mineral) deposit. A well-defined mineral deposit and its associated geologic characteristics are the only aspects of a project that
Jan 1, 2008
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A Critical Overview of Dithiophosphinate and Dithiophosphate Interactions with Base Metal Sulfides and Precious Metals Mining, Metallurgy and Exploration
By D. R. Nagaraj, Napoleon Tercero, Raymond Farinato
Historically, as for most reagents used in flotation, the wide-spread use of dialkyl dithiophosphinates as collectors in practical applications has preceded a detailed scientific understanding of how
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Annual Review 2001 – The United States 2001
By R. F. Balazik
By March 2001, shrinking global markets, reduced consumer spending and declines in domestic manufacturing and industrial output ended the longest economic expansion in US history and pushed the nation
Jan 1, 2002
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Space Mining – Boondoggle or the Next Gold Rush
By Richard E. Gertsch
If you believe that the goal of the space program should be a permanent, manned presence in space, then you believe in space mining. Historically, mining has been an integral part of the frontier. For
Jan 1, 1991
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The Search For Asbestos Within The Peter Mitchell Taconite Iron Ore Mine, Near Babbitt, Minnesota
By Malcolm Ross
Asbestos crystallizes within rock formations undergoing intense deformation characterized by folding, faulting, shearing, and dilation. Some of these conditions have prevailed during formation of the
Jan 1, 2007
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Studies Of The Interactions Between Talc And Stickies During Paper Recycling
By J. L. Yordan, J. Kortmeyer, I. Yildirim
Talc is used to remove stickies from pulp during paper recycling processes. It is well known that the interaction is controlled by the surface chemistry at the talc/water, sticky/water and talc/stick
Jan 1, 2002