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Escondida – Phase IV Grinding Circuit
By Walter S. Bergholz, Michael L. Schreder
"Since Escondida began operations in fiscal 1991, a series of aggressive expansion projects have enabled market share to be increased and ever larger profits to be realized. This was possible due to t
Jan 1, 2004
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A Queuing Network Model for Shovel-Truck-Crusher Systems in Open-pit Mining
By Jiwen Zhang
Abstract Due to the blocking nature at the crusher station, straightforward application of queuing theory cannot give realistic results on the performance of a shovel-truck-crusher system. A new queu
Oct 1, 2009
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A Queuing Network Model for Shovel-Truck-Crusher Systems in Open-pit Mining
By Jiwen Zhang
Due to the blocking nature at the crusher station, straightforward application of queuing theory cannot give realistic results on the performance of a shovel-truck-crusher system. A new queuing networ
Oct 1, 2009
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Oxidation, Weight Gain and Self-Heating of Sulphides
By J. E. Nesset, J. A. Finch, Rosenblum. F., S. Somot
"In a previous presentation at the CMP, evidence was shown for the formation of hydrogen sulphide (H2S) in self-heating experiments on pyrrhotite-rich samples (Somot and Finch, 2006). Oxidation of H2S
Jan 1, 2009
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Transforming Flow Sheet Design with Inert Grinding – the IsaMill
By K. E. Barnes
"The IsaMill was developed for fine-grained ores that required at least double the grinding efficiency of ball or tower milling to be economic. This was achieved, but in practice, the benefits of usin
Jan 1, 2006
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Real Time Mineral Analysis using COSMA
By Sanjiv Dhanjal
"Often mineralogy dictates the physical properties of a material rather than chemistry. This in turn affects how that material behaves in a process plant, and whether optimum conditions for refining o
Jan 1, 2009
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53rd Annual Conference of Metallurgists - Conference Proceedings
"WELCOME/BIENVENUE TO THE COM 2014 IN BEAUTIFUL VANCOUVER!On behalf of the organizing committee, I would like to extend my thanks to you for participating in this year’s Conference of Metallurgists. R
Jan 1, 2014
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Applications for hard facing in the mining industry
By A. A. Beland, R. J. Dawson, S. Shewchuk
"Shovel buckets, scraper blades, dipper teeth, mine car wheels and hammermills are examples of equipment which require routine maintenance due to abrasion. Service life can be extended by the use 0/ha
Jan 1, 1980
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Spiral Surface Property Investigation
By X. Louw
"This paper examines the change in surface properties of the Polyurea used on spirals at different operational times: unused spiral, 28 months in operation and 58 months in operation. This is being do
Jan 1, 2017
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Large adjustable-speed AC drives for the mining industry
By G. Hausen, H. Micka
"Modern signal and power electronics made adjustable-speed AC drives technically feasible and reliable and economically attractive. Cycloconverters are discussed as a proven technology for mine hoists
Jan 1, 1988
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Flotation Feed Size Distribution
By Claude Bazin
"Laboratory semi-batch flotation tests were conducted using two different sulphide ore samples. The size reduction was adjusted to cover a wide range of flotation feed size distributions. Results show
Jan 1, 2006
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The Schaft Creek Porphyry Cu-Mo-(Au) Deposit, Northwestern British Columbia
By J. E. Scott, L. M. Heaman, R. A. Creaser, G. S. Salazar
"Schaft Creek is a calc-alkaline porphyry Cu-Mo-(Au) deposit located in northwestern British Columbia. The deposit formed in a volcanic arc setting, likely on a back-arc rifted continental fragment. I
Jan 1, 2008
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Pressure Leaching of Copper-Cobalt-Zinc Containing Calcine with the Outotec Pressure Oxidation Process
By Mehmet Canbazoglu, Kaarlo Haavanlammi, Hannu Laitala
Cobalt is currently a critical metal because of the increasing number of electrical vehicles forecast for production. Copper and zinc are base metals that are used in many everyday applications, inclu
Jan 1, 2019
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An Evaluation of the Rietveld Method for Modal Analysis at CANMET
By John Wilson
"The Rietveld numerical method was used to calculate the relative abundances of phases in both synthetic binary mixtures and synthetic and natural ores, using X-ray diffraction data. The results were
Jan 1, 2003
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Making money from wastes: a custom circuit within Clarabelle Mill
By Alain Bouchard, Germain Labonté, Jim Barrett
"Mill feed materials that are not run-of-mine ore are often a challenge for mineral processors and tend to accumulate in stockpiles, where they remain unprocessed for many years and become “slow movin
Jan 1, 2002
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Gold Potential of a Hidden Archean Fault Zone: The Case of the Cadillac-Larder Lake Fault
By O. Rabeau, M. Legault, A. Cheilletz, L. Z. Cheng, J. J. Royer, M. Jébrak
"By compiling geological, structural, geophysical, and geochemical information into a 3D geological model, we evaluated the orogenic gold potential in the vicinity of a hidden segment of an important
Jan 1, 2009
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Tuluwaka Mine – From Greenfield to Production in 14 Months
By Ross Nairn
"Tulawaka Mine is a joint venture between Pangea Minerals Limited 70% (a wholly-owned subsidiary of Barrick Gold Corporation) and Northern Mining 30%. Tulawaka Mine is located in North West of Tanzani
Jan 1, 2006
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Structural Controls on Massive Sulfide Deposition and Hydrothermal Alteration in the South Sturgeon Lake Caldera, Northwestern Ontario
By A. H. Mumin, A. K. Somarin, K. S. Oran
"Synvolcanic structures played a fundamental role in the genesis, morphology, and siting of volcanogenic massive sulfide ores and associated hydrothermal alteration in the Archean South Sturgeon Lake
Jan 1, 2007
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Cultivator shank manufacture and evaluation
By R. W. Pugh, D. G. Bellow
"This paper will describe how cultivator shanks are made in one company and how the manufacturing was studied with a view to increasing product consistency and reducing manufacturing cost. The product
Jan 1, 1982
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Simulation of a dragline operation in all eastern Kentucky mine
By R. V. Ramani
"A computer simulation model of a dragline has beer developed for the study of alternative dragline deployment schemes for varying geological and mining conditions. In this paper, the mathematical asp
Jan 1, 1985