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Separation of Fe and Mn from Manganiferous Iron Ores via Reductive Acid Leaching Followed by Magnetic Separation Mining, Metallurgy and Exploration (d04b1b84-2a8b-409f-b5c1-e20532b1d7ae)
By Soner Top
In this study, a process to separate manganese and iron from manganiferous iron ores by reductive acid leaching followed by magnetic separation was conceived and experimentally tested. In the leaching
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Separation of Fe and Mn from Manganiferous Iron Ores via Reductive Acid Leaching Followed by Magnetic Separation Mining, Metallurgy and Exploration
By Soner Top
In this study, a process to separate manganese and iron from manganiferous iron ores by reductive acid leaching followed by magnetic separation was conceived and experimentally tested. In the leaching
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Discriminating between different genetic types of marine ferro-manganese crusts and nodules based on rare earth elements and yttrium
By Andrea Koschinsky, Akira Usui, Michael Bau, Katja Schmidt, James Hein, Thomas Kuhn
Marine ferro-manganese (Fe-Mn) crusts and nodules are metal-rich chemical sediments that are archives of paleoceanographic proxies and potential metal resources and targets of deep-sea mining. Traditi
Sep 1, 2014
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Optimizing Usage Of Installed Size Reduction Power At Minera Peñasquito
By S. Dixon
The Peñasquito deposit in Mexico is one of the largest grassroots precious metal discoveries developed in recent years. Goldcorp Inc. acquired the gold-silver-lead-zinc property with the acquisition o
Jan 1, 2012
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Latin Mining - Goldcorp?s New Peñasquito Mill
By Barry Olson
The Peñasquito deposit in Mexico is one of the largest grassroots precious metal discoveries to be developed in recent years. Goldcorp Inc. acquired the gold-silver-lead-zinc property with the acqui
Jan 1, 2009
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Design Analyses for a Large-Span Tunnel in Weak Rock Subject to Strong Seismic Shaking
By Bhaskar B. Thapa
The proposed Caldecott fourth bore will consist of a two lane highway tunnel along California State Route 24 near the City of Oakland. The proposed design and construction sequence for the 15-m-diamet
Jan 1, 2008
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Tunneling Through Cobbles in Sacramento, California
By Joel Nonnweiler, Rafael Castro, Ross Webb
The three thousand foot long 66-inch diameter Folsom East Interceptor Section2B was completed accident free, on time and under budget with no measurable surface settlement. The tunnel passed through n
Jan 1, 2001
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Social, Economic, And Planning Impacts Of Rapid Excavation And Tunneling Technology
By W. L. Garrison
Improvements continue to be made in rapid excavation and tunneling technology. There are several ways to examine the impacts of such improvements. The most common procedure is to monitor current devel
Jan 1, 1974
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Construction Of Drilled Shafts For The Upper Northwest Interceptor, Sections 1&2 Project?Sacramento, CA
By Jeremy Theys
The Sacramento Regional County Sanitation District (SRCSD) is improving the sewer system in the Natomas area of Sacramento, CA. The Upper Northwest Interceptor (UNWI) system is an ongoing series of tu
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Coping with Boulders in Soft Ground TBM Tunneling
By Peter B. Dowden, Robert A. Robinson
Boulders, frequently found in tunnels excavated through soils, can pose major problems for full face TBMs in terms of slowing or halting the tunnel advance, cutter damage, and abrasive wear. The paper
Jan 1, 2001
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The Role Of Social Media In Employee Relations
By W. A. Wright
The use and abuse of social media restate common employee relations issues. Business solutions to these issues require advanced preparation. Employers should establish and enforce social media polic
Jan 1, 2011
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High Throughput, High Solids Flotation Of 20 X 200 Mesh North Carolina Phosphate In A Short Column Cell
By Louis M. Schlesinger, Michael J. Garska, Joel F. Hutwelker, James T. Jr. Tanner
A pilot plant was constructed and operated to investigate the column flotation of 20 x 200 mesh North Carolina phosphate ore, using high throughput, high solids operating conditions developed at the N
Jan 1, 1993
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The Minnesota Experience — A Harbinger Of The Future For U.S. Metals Mining And Minerals Education?
By W. Hustrulid
In the mid-to-late 1800’s the U.S. mining industry was on the threshold of nearly a century of golden times. Nearly every state had a prosperous and growing mining sector. The importance of the indust
Jan 1, 2004
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The Seymour Capilano Twin Tunnels Project, Vancouver, BC
By Don Phelps, Dean Brox, Peter Procter, Andy Saltis, Tom Morrison, Jeff Pringle
The Greater Vancouver Water District is currently constructing the Seymour-Capilano Water Filtration Project to enhance the quality of drinking water in the Vancouver metropolitan area. The Seymour-Ca
Jan 1, 2005
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Leaching Characteristics Of Selected Supergene Copper Ores (c30515a6-1bd7-4183-80c4-cfc0159b5f55)
By Sterling S. Cook
The U.S. Bureau of Mines is conducting core leaching experiments with sulfuric acid on oxide copper ores from the Cyprus Casa Grande and ASARCO Santa Cruz deposits in Arizona to further our understand
Jan 1, 1988
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Improving Storage And Handling Of Ores In Mining And Processing Operations
By Jayant Khambekar
In a typical mining operation, run-of-mine (ROM) ore is crushed and screened to achieve a desired particle size distribution and then fed to processing equipment for further refining. For an operatio
Jan 1, 2009
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Performance of Four EPB-TBMs Above and Below the Groundwater Table on the ECIS Project, Los Angeles, CA, USA
By Jörg Holzhäuser, Matthew Crow
An 18.5 km (12 mile) long tunnel is being driven by four Earth Pressure Balance Tunnel Boring Machines (EPB-TBMs) of 4.7 m (15.5 ft.) diameter through alluvial sand, gravel, silt and clay above and be
Jan 1, 2003
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Energy Fuels Prepared To Ride Uranium?s Resurgence
The two candidates in the upcoming presidential election in the United States each say that they have their own solution to the nation?s energy problems - solutions that will increase the amount of en
Jan 1, 2008
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Bio-Indicator Evaluation of Water Quality Impacts from Inactive and Abandoned Mines in the Bear Butte Creek Basin of the Black Hills
By A. D. Davis, J. L. Sorensen, C. J. Webb
Environmental impacts from acidic mine drainage are growing national concerns that are particularly acute in the headwaters of the Rocky Mountain region. In the Black Hills of South Dakota, approximat
Jan 1, 1999
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Baumgartner Shafts and Tunnel
By Jim Nickerson, James McCleish, Tom Abkemeier, Nicholas Willig
The purpose of this project is to convey sanitary sewage from an existing pump station to a new waste water treatment plant. This paper will discuss the design and construction aspects of the project.
Jan 1, 2005