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Drum Hoists ? Case Study
By Gordon F. Scott
This paper considers a recently completed hoist project for IAMGOLD. Called the Westwood project, this mine utilises some of the largest drum hoists supplied to the North American Market in recent tim
May 1, 2011
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Corrosion Experiences 1n the Acid Leaching of Cobalt-Nickel Sulphides
By R. B. McIntosh, S Ramanchuk
A brief description is given of the process used by Sherritt Gordon Mines Limited to recover cobalt metal from nickel-cobalt sulphides. A description of the equipment with the operating conditions is
Jan 1, 1961
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Gypsum Deposits of Southwestern Newfoundland
By D. M. Baird
ABSTRACT A revised stratigraphic section of Carboniferous rocks which occupy about 700 square miles in southwestern Newfoundland is presented. Gypsum, which outcrops at thirty-five different localiti
Jan 1, 1951
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Precious-Metal-Bearing Volcanogenic Massive Sulphide Deposits, Campo Morado, Guerrero, Mexico
By Robert Cluff
The Campo Morado precious-metal-bearing, volcanogenic massive sulphide district occurs in a Lower Cretaceous felsic volcanic sequence in a northerly trending belt in the Guerrero Terrane in northeaste
May 1, 2006
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Effect of Porosity on the Tensile Properties of Die Cast Aluminium A360
By Gheorghe Marin, Franco Chiesa, David Levasseur, Bernard Duchesne
Over the past 20 years, pressure die casting has evolved to a point where structural parts can now be produced by this process. This has been made possible by the development of vacuum die casting and
Jan 1, 2015
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Influence of Different Organic Additives on Zinc Electrowinning from Acidic Sulphate Electrolyte
By E. Ghali, W. Zhang, G. Gabra, N. Sorour, G. Houlachi
The additives polyacrylamide, 1-Butyl-3-methylimidazolium chloride, Tetra-butylammonium bromide, Benzalkonium chloride and chitin are evaluated during zinc electrolysis from synthetic acidic sulphate
Jan 1, 2015
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Dry Slag Granulation: A Path to Improving the Safety and Sustainability of the Metallurgical Sector
By G. Chahal, L. C. So, S. Faucher, S. Mostaghel, S. -Y. Oh, S. K. Lee
Slag dumping and water granulation are the most commonly used slag treatment methods in the metallurgical industries. In both processes, water is present (by desire for cooling and dispersion or as a
Jan 1, 2015
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The Gold-pyrite Association in Witwatersrand Reefs: Evidence for Electrochemical Precipitation of Gold
By P. Müller, W. J. Przybylowicz, V. M. Prozesky, D. de Bruin
"Abstract -The common style of gold mineralization in the Basal Reef and other auriferous conglomerates of the Witwatersrand Supergroup comprises clusters of gold grains occurring interstitially to qu
Jan 1, 1994
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Maboumine Project: A Hydrometallurgical Process for the Recovery of Rare Earth Elements from a Polymetallic Ore Deposit in Gabon
By Sarah Bélair, Denis Beltrami, Valérie Weigel
"Mabounié is a polymetallic deposit in Gabon containing niobium (1.2%), tantalum (0.03%), rare earth elements (REE) (1.4%) and uranium (0.03%) that are mostly carried by Pyrochlore minerals. Classical
Jan 1, 2016
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Mining the Retreat Zone Between Two Converging Pyramids at Noranda?s Bell-Allard Mine
By Véronique Falmagne
The mining sequence at Noranda?s Bell-Allard mine calls for two mining fronts retreating toward a central pillar known as the Retreat Zone between pyramids A and C. It is clear from numerical modeling
May 1, 2003
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Failure Mechanisms of Pillars Under Shear Loading
By Joseph J. Mgumbwa
Pillars are any structures left between two or more underground openings. The stability of pillars is normally considered to depend on shape (defined by width to height ratio), rock mass strength, ext
Oct 1, 2010
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Highwall mining technology— A review of current status and design methods
By N. R. Thote, J. L. Porathur, C. P. Verma
Highwall mining is a highly mechanized coal mining method associated with several advantages, such as a very high production rate (approximately 3,000 t/d) and low production costs. There is no requir
Jan 1, 2014
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Recovery of Gold and Associated Metals from Refractory Ores and Concentrates via a Chloride-Based Processing Route
By G. B. Harris, C. W. White
Cyanide has been used for the recovery of gold since the mid 1800s, but several jurisdictions have already banned its use, and environmental pressures are increasing to finding an alternative. Gold al
Jan 1, 2011
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Experimental and Commercial Magnetic Roasting
By R. I. Cavanagh, A J. Last
THE USE of higher grade charges in blast furnaces in the form of sintered or pelletized concentrates has been increasing rapidly. The question of beneficiation of iron ores for this purpose is therefo
Jan 1, 1961
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The Wide Dissemination of Gold in Northern Ontario
By H. C. Boydell
Those connected with mining, prospecting, or mining geology in northern Ontario are familiar with the fact that it is a comparatively unusual thing to have assayed a sample for which the assay report
Jan 1, 1928
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A Method to Account for Variability in the Geotechnical Design of Longhole Open Stopes
By Amir Karami, Derek Kinakin, Catherine Schmid
The Mathews Stability Graph Method (Mathews et al., 1981) has been used by geotechnical engineers and mining engineers for over 40 years to estimate the performance of longhole open stopes in undergro
Oct 1, 2024
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Improving Construction Environmental Metrics Through Integration of Discrete Event Simulation and Life Cycle Analysis
By H. Golzarpoor
Life Cycle Analysis (LCA) is a methodology for evaluating the environmental impacts associated with a product during its life cycle. LCA is identified as the most reliable method for verifying environ
Aug 1, 2013
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Mine Timber: Its Conservation, Preparation, Storage, and Treatment
By W. D. Haley
The report of the Forestry Committee, presented to the recent Imperial Conference at London, is discouraging in its view of the future of timber resources and supplies. From a review of the forestry s
Jan 1, 1927
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Phases and Phase Relations of the Platinum-Group Elements
"3.1. IntroductionAmong the six platinum-group elements (POE), four have identical cubic symmetry, two identical hexagonal symmetry (Table 3.1). Despite crystallographic differences, there is a clear
Jan 1, 1979
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Process Improvements at Placer Dome Campbell Mine
By K. Norris
"The Campbell mill has undergone numerous changes over the past 43 years. However the rate of change has increased significantly in the last 4 years. A new grinding circuit, carbon-in- pulp circuit, p
Jan 1, 1992