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Surface Thermodynamics And Extended DLVO Theory Of Leptospirillum Ferrooxidans Cells? Adhesion On Sulfide MineralsBy A. Vilinska
The adhesion of Leptospirillum ferrooxidans bacterial cells onto the sulfide minerals pyrite and chalcopyrite was evaluated using two different physical-chemical approaches; thermodynamic and extended
Jan 1, 2011
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Increasing Effectiveness of Mine Safety Training Using Inexpensive Camera and Rendering TechnologyBy M. A. Trevits, G. Frampton
"Mine safety training materials have long included pictures of mine conditions, equipment, hazards, etc. These images are invaluable to both the trainee and the trainer to convey many important concep
Jan 1, 2018
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Evaluation of carbon monoxide and smoke sensors at a low ventilation velocityBy Richard A. Thomas, III JAMES H. ROWLAND, Liming Yuan
This paper presents the results of large-scale fire experiments on evaluating the performances of carbon monoxide (CO) and smoke sensors at low ventilation velocities. Experiments using three differen
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Energy Conservation In The Comminution Of Industrial Minerals (5bf6fefb-be28-4472-9f36-2b8549dafaa4)By T. Cienski
The paper presents and discusses the results of a detailed study conducted on the subject of energy consumption in the comminution of industrial minerals. The study was based on pilot circuit testing,
Jan 1, 1990
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Cutterhead Inspection and Maintenance on the Coxwell Bypass Tunnel Project in Toronto, ON - NAT2022By William Hodder, Ehsan Alavi, Muhib Hussain
Disc Cutter Wear is influenced by several geological and technical factors and excessive wear can have a major impact on the excavation efficiency of Tunnel Boring Machines (TBM). Disc cutter replacem
Dec 1, 2022
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Application Of A Computer Simulation Model To A Contour - Area MinesBy L. Barry Phelps
The application of an open-pit Materials Handling Simulator (OPMHS) to analyze mine planning and scheduling problems in large surface mines is discussed. The mine chosen for this application employed
Jan 1, 1978
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Mining Review (29ca5505-cd31-411f-a7b4-e812a794f2c9)By Staff
"In 2014, the estimated value of total mine production of nonfuel minerals in the United States increased. The quantity of production increased for most mineral commodities mined in the United States,
Jan 1, 2014
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Application Of Geostatistics To Roll Front Type Uranium DepositsBy Harvey P. Knudsen
This paper illustrates the application of geostatistics to a roll front type uranium deposit located in Wyoming. The steps involved in calculation of experimental variograms, variogram modeling and ve
Jan 1, 1978
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Flotation Chemistry of Soluble Salt Minerals: from ion Hydration to Colloid AdsorptionBy M. S. Celik, H. Du, J. D. Miller, F. Cheng, O. Ozdemir
"In this paper, recent progress with respect to the flotation chemistry of soluble salt minerals is reviewed, and some of the more relevant issues including the hydration states of ions, the interfaci
Jan 1, 2015
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Improved Apatite Recovery From Pyroxenite Ore Using Dry Milling (76e4c0cb-a59b-4aa7-85f7-7e1251e9671f)By G. J. van der Linde
Foskor operates a mine in the Northern Province of the Republic of South Africa exploiting the igneous complex at Phalaborwa. It produces about 3 million tons of phosphate concentrate per year by mean
Jan 1, 1999
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A Jouney to Zero Harm; Montana Resources Sets the Standard in Mine SafetyBy William Gleason
"It has been more than 10 years since Montana Resources’ copper/molybdenum mine has had a lost-time injury at its site in Butte, MT. With more than 350 employees and an average production of about 15.
Oct 1, 2019
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A Technique For Predicting Water Inflow To Large Underground OpeningsBy W. W. Dudley
The U.S. Geological Survey, in support of underground testing of nuclear explosives, has developed a technique (Dudley, 1910) to predict the inflow of ground water to large underground chambers that a
Jan 1, 1971
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Regulating Mechanism of the Coal‑Based Reduction Reaction Behavior of Jinchuan Ferronickel Slag: Equilibrium Phase Composition, Kinetics, and Phase TransformationBy Yonghong Qin, Songbo Ma, Qi Zhang, Peng Gao, Jianwen Yu
Herein, the coal-based reduction was proposed to utilize the ferronickel slag of Jingchuan company. An excellent index with metallization rate of 99.22%, iron grade of 77.91%, and iron recovery of 92.
May 24, 2022
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Extraction Metallurgy Of Copper From Chalcopyrite Concentrates Without Sulfuric Acid Generation Via Chlorination-Gaseous Chlorination Of Sulfide ConcentratesBy T. Tamagawa
A gaseous chlorination process for hydrometallurgical treatment of a chalcopyrite concentrate was investigated. The overall process is visualized to consist of low temperature chlorination-selective o
Jan 1, 1999
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CFD analysis on gas distribution for different scrubber redirection configurations in sump cut - SME Transactions 2015By L. Zhou, J. P. Rider, T. W. Beck, J. A. Organiscak, Y. Zheng
The National Institute for Occupational Safety and Health’s Office of Mine Safety and Health Research recently developed a series of models using computational fluid dynamics (CFD) to study the gas di
Jan 1, 2015
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Wireless Technology Offers Mining Operations ImprovementsBy Ed Schodowski
Wireless technology is a hot topic for anyone involved in the design, operation, maintenance or upgrading of mines or mineral processing plants because wireless technologies overcome barriers that hav
Jan 1, 2009
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The Effect Of Grinding Media On The Selective Flotation Of Copper-Lead-Zinc OresBy R. W. Bruce
The normal practice for processing complex sulphide ore has been to grind with steel balls and/or rods in steel mills before flotation. Little thought had been given to the effect of grinding media on
Jan 1, 1976
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Kinetics Of Acid-Alcohol Leaching Of ApatiteBy C. E. Jordan
Direct digestion of phosphate ores by the acid-alcohol method offers improved leaching selectivity for the exclusion of iron and aluminum in the product acid. The leaching kinetics of this process wil
Jan 1, 1993
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Mill Design for the SeventiesBy Robert S. Shoemaker
The development of a metallurgical project is a business venture rather than a technical exercise, and its real objective is to obtain the maximum return on investment consistent with the limitations
Jan 1, 1971
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Evaluation of high-temperature disposable filter elements in an experimental underground mine - SME Transactions 2011By L. D. Patts, S. J. Janisko, E. G. Cauda, A. D. Bugarski, G. H. Schnakenberg, J. A. Hummer
Filtration systems with disposable filter elements (DFEs) are used in the underground coal mining industry to control particulate matter emissions from diesel-powered permissible and nonpermissible co
Jan 1, 2011