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When does a project with Questionable Viability, Warrant Further Investment?
By David Whittle
When does a project with questionable viability, warrant further investment? There are cases in which projects, which evaluate to a negative mean probable value, are worth investing in. There are al
May 1, 2006
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Deep shaft hoisting at LaRonde —The Penna shaft hoisting plant
By B. McLaughlin
Agnico-Eagle started sinking the Penna Shaft in 1995 with a hoisting plant capable of hoisting 1800 t/d from a 2240 m deep shaft. Exploration success led to the installation of a hoisting plant capabl
Jan 1, 2004
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Vegetative Studies on Sulphide and Slag Tailings
By E. M. Watkin
"Although Canada has achieved one of the highest living standards in the world, people and organizations have, over the past decade, begun to question the cost and means of this achievement. Concern h
Jan 1, 1975
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Robust image segmentation technique for rock fragmentation analysis
By G. K. Mann
Fragmentation analysis of blast or crushed rock material is a time-consuming and costly process. During the last two decades, the mining industry has been investigating image-based analysis systems as
Jan 1, 2006
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State of Leadership in the Mining Industry and Why Leadership Matters
By Scott Martin
This paper will discuss the challenges currently facing the mining industry. By sharing experiences gained in the CIM Leading in Mining Course, I will highlight what’s working, what’s not, what are th
Jan 1, 2014
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Effects of La Addition on the Microstructure and Mechanical Properties of Sn-58bi Solders Joints with OSP Pads
By T. H. Chuang, Y. Y. Shiue
"Rapid whisker growth was significantly alleviated in a Sn-58Bi alloy doped with 0.5 wt.% La. Experimental results showed that many thin, plate-form intermetallic phases appeared in the solder matrix.
Jan 1, 2012
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Multi-scale stochastic modelling of ore textures at the George Fisher mine, Queensland, Australia
"The link between ore texture and mineral liberation has previously been established at a microscopic scale. To construct ore texture models that can be used in mining applications requires this relat
Jan 1, 2005
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A study of copper smelting reverberatory furnace design and performance and methods available for increasing throughput
By M. A. T. Cocquerel, M. G. Burcher, J. G. Eacott
"This paper is based on work carried out to examine the feasibility of increasing the smelting rate of two oil-fired calcine-charged reverberatory furnaces . Various constraints prevented physical enl
Jan 1, 1980
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The Optical Properties of Mixed Au and Pt Nanoparticle Colloids
By Daven N. Compton
The optical properties of Au nanoparticles have been known for some time, with both Au colloids and Au nanoparticles embedded in glasses having been extensively studied. In this study, Pt nanoparticle
Oct 1, 2003
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Effect of Synthesis Conditions on Particle Shape of Scorodite
"An atmospheric process for the synthesis of scorodite(DMSP®)has beendeveloped,in which ferrous ions were oxidized by oxygen gas in the presence of pentavalent arsenic ions. Under optimum conditions,
Jan 1, 2016
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Comparisons of the Geology and Proposed Underground Mining Methods of the Panda and Koala Kimberlites at the EKATI Diamond Mine
By Peter A. Oshust
The EKATI Diamond Mine has successfully completed the development and commissioning of the Panda Underground Project to extract the ore below the Panda open pit. The dominant kimberlite domain of the
May 1, 2006
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Geochemical and geophysical gold exploration in the Timmins area, Ontario: a case history
By A. Philipp, A. S. Middleton, G. A. Harron, A. B. Durham
"Basal till sampling techniques were used to search for gold mineralization in the Timmins, Ontario area. During 1978 and 1979, approximately 90 overburden sampling drill holes were completed in Murph
Jan 1, 1987
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Comparison of Artificial Neural Networks and a Geostatistical Method in Grade Estimation
By Hamid Mahmoudabadi
In the present paper, the performance of four approaches based on neural networks and geostatistical method for grade estimation are compared and analyzed their performance to find a proper method. Fo
Oct 1, 2009
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New Perspectives in Gold Catalysed Oxidation
By Serena Biella
Gold has received a growing interest as a catalyst for the selective oxidation of organic molecules using oxygen under mild conditions1. In the liquid phase application small gold particles (2.5-7 nm)
Oct 1, 2003
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Carbon Dioxide Use for pH Control at Greens Creek Mill
By Tim Martin, Dave Tahija
"In April, 2014, Hecla's Greens Creek mill, near Juneau, Alaska, switched from sulphuric acid to the use of dissolved carbon dioxide for lead flotation circuit pH control. The Greens Creek mine uses p
Jan 1, 2016
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Assessment of Material Diggability for Shovel Excavation in Oil Sands
By Sibabrata Patnayak
A major problem during shovel excavation in oil sand mining is the variability of material diggability resulting in varying mechanical energy input, cycle time, energy consumption, wear, and stress lo
Apr 1, 2005
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Upgrading Molybdenite Ores between Mine and Mill Using Microwave/Infrared (MW/IR) Sorting Technology
By Eugen Gluck, Gus Van Weert, Peter Kondos
"Microwaves have the capability to heat up sulphides, especially clusters of particles of approx. 1 mm. Some sulphides absorb microwaves more readily than others. Molybdenite is especially effective i
Jan 1, 2009
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A Moveable Mineral Processing Miniplant
By P. Wells, P. Quinn
"A moveable flotation miniplant was designed and constructed at the research laboratory of Inco Technical Services Ltd. to address the need for flowsheet development with a limited amount of ore (such
Jan 1, 2003
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Selenate Removal from Waste Water by Direct Chemical Reduction
By J. Lu, M. Mohammadi, C. Pelletier, B. Wassink
Chemical reduction of selenate by chromous ions is proposed as a novel method to remove selenate from sulfate-bearing solutions Chromous ions were generated by electrochemical reduction of chromic ion
Jan 1, 2019
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Sustainable development — From by-product synergy to capital stock turnover (eb38b183-2b91-45e8-9593-17a2510fe4b9)
By J. R. Yates, R. J. Young, G. E. Forward, J. B. Farrell, R. J. Milbourne
"Sustainable development in the mining and metallurgical industrial sectors can be implemented by two distinct groups: the managers and operators of existing facilities, working with industrial proces
Jan 1, 2003