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Optimization Of A Grinding And Classification Circuit Of A Magnetite Ore Processing Plant Through Computer Simulation
By J. A. Delgadillo
Computer simulation and mineral modeling was applied to the optimization of a grinding circuit in a plant processing 256 t/h magnetite. These tools were used to develop a grinding and classification c
Jan 1, 2008
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Support Of The Leipzig City—Tunnel Extension Using A Tie-Back Supported Freeze Wall
By Helmut Hass, Michael B. Gilbert
The extension of the commuter railway system (S-Bahn) in Leipzig, Germany willrequire the construction of an underground line crossing the downtown area of thecity to tie the Bavarian Station in the S
Jan 1, 2007
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Recent Developments in the TBM Industry—New and Innovative Technologies
By Martin Herrenknecht, Karin Bäppler
The last five years have seen a remarkable increase in tunnelling projects in both soft ground and hard rock applications. Part of the increase is a result of recent Research & Development efforts to
Jan 1, 2005
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Engineering Geology and Cavern Design for New York City
By Christopher Snee
??care has to be taken that the design is driven by sound geological reasoning and rigorous engineering logic rather than by the very attractive images that appear on the computer screen.??Hoek 1999
Jan 1, 2008
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Engineering And Construction Of The Goldstrike Roaster Facility
By B. Burke, R. Colquhoun, K. Thomas, R. Walton, D. Fentie
The new Roasting Facility at Barrick’s Goldstrike Mine in Nevada, U.S.A. was developed to process 12,000 tons per day of refractory gold ore. The process consists of crushing, dry grinding, roasting,
Jan 1, 2001
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Union Pacific Instrumental in Developing Wyoming Trona
By Neil A. Brown
The trona deposits near Green River, in southwestern Wyoming are world class in size and quality. They contain more than 25 times the reserves of the next largest trona deposit at Lake Magadi in Kenya
Jan 1, 1995
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SIU-Sim: A Novel Coal Preparation Plant Simulator
Coal preparation plant simulators are used to study flowsheet alternatives and determine product quality and quantity that can be produced under various operating conditions for individual circuits. S
Jan 1, 2008
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Studies Of Anionic Reagents For Phosphate Beneficiation
By P. Zhang
A multiyear, comprehensive study of flotation reagents used in phosphate beneficiation was conducted. The study involved the evaluation of pure fatty acid compounds, comparison of various anionic coll
Jan 1, 2009
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Detection And Control Of Calcium Sulfate Precipitation In The Lead Circuit Of The Hilton Concentrator Of Mount Isa Mines Limited, Australia
By P. L. M. Wong, N. W. Johnson
Surface analysis by X-Ray Photoelectron Spectroscopy (XPS) of samples taken from the galena flotation section of the Hilton Concentrator of Mount Isa Mines Limited are presented. Flotation rate and pu
Jan 1, 1995
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Advances In Autogenous And Semiautogenous Grinding
By Vladimir G. Kochnev
Crushing and grinding account for the major portion (60 to 80 percent) of the overall expenses for ore processing. Autogenous (AG) and semiautogenous grinding (SAG) have been considered a step forward
Jan 1, 2008
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Investigation of the Source Mechanisms of Mining Induced Seismic Events at Kloof Gold Mine, South Africa - RASIM 2022
By Musa D. Manzi, Raymond J. Durrheim, Richard T. Masethe
An investigation into the source mechanism of mining-induced seismic activity plays a vital role in understanding the various modes of failure observed in the underground deep-level South African mini
Apr 26, 2022
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Pilot Testing of a Permeable Reactive Barrier (PRB) to Remediate Sulfate, Metals, and Low pH in Groundwater
By J. F. Strunk Jr., K. M. Maestas, Y. Chai, R. Legrand, R. L. Henry
"Groundwater with elevated sulfate and metals was treated using a sulfate-reducing pilot PRB consisting of a series of six 55-gallon drums filled with ZVI (Fe0), wood chips, brewer’s grain, limestone,
Jan 1, 2016
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More than 200 attend Cutting Edge 2016 in nation’s tunneling hotbed
By William Gleason
"Speakers and attendees of the 2016 Cutting Edge Conference could not be faulted for keeping one eye on the presentations taking place at the Hyatt Regency at LAX in Los Angeles, CA on Nov. 7 and 8 an
Dec 1, 2016
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Ground control monitoring system in the Leeville underground mine - SME Transactions 2009
By C. Sun
The Leeville underground mine has been in operation since 2006 and currently produces 2,903 t (3,200 st) of ore per day, with an average gold grade of 0.4 opt. The mine’s horizontal extent is large, 7
Jan 1, 2009
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Grouting For Groundwater Control Milwaukee Inline Project
By Edwin F. Shorey, Richard F. Coon, Steven B. Fradkin
Crosstown Interceptor Phase IA is the first deep tunnel element of the Milwaukee Inline Project. The tunnel contract includes 6,492 meters (m) of 9.1-m-diameter tunnel, two access shafts, and partial
Jan 1, 1987
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Copper Hydrometallurgy – Evolution and Milestones
By Nathaniel Arbiter
In contrast to pyrometallurgy's 6000year history in metals production, hydrometallurgy is of relatively recent origin. The earliest reference to it was in the 16th century, with the first applica
Jan 1, 1994
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Geologic Data Collection and Assessment Techniques in Coal Mining for Ground Control
By Mark Van Dyke, Ted Klemetti, Joe Wickline
"The identification and mitigation of adverse geologic conditions are critical to the safety and productivity of underground coal mining operations. To anticipate and mitigate adverse geologic conditi
Jan 1, 2019
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Analysis Of Airflow Resistance On Longwall Faces ? Introduction
By S. L. Bessinger
In the design and specification of a ventilation system for an underground mine, it is necessary to make reasonably accurate estimates of the pressure losses in the various airways of the mine. These
Jan 1, 1987
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Large Flotation Cells In The Copper Processing Industry ? Recent Experiences And Future Considerations (Part 1)
By D. Govender
In recent years, economies of scale have continued to drive copper projects to larger throughputs to offset depleting lower grade resources. A decade ago there were only a small number of projects tha
Feb 27, 2013
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Metallogenic Characteristics Of The “Borska Reka” Porphyry Copper Deposit In The Bor Copper And Gold Deposit, East Serbia
By D. Kozelj
Introduction The porphyry copper deposit “Borska Reka” is the biggest undeveloped deposit in the Timok Magmatic Complex (TMC). Total reserve calculated manually is 611 Mt (cut-off grade 0.3% Cu) of 0
Jan 1, 2007