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Mineralogical Solutions For Pyrometallurgical Problems - Synopsis
By L. Andrews
Mineralogy, traditionally associated with concentrator studies, is being increasingly applied to problems in pyrometallurgy. Such investigations commonly make use of a number of techniques, and the re
Jan 1, 2011
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A quantitative evaluation of the load bearing capacity of ground and characteristic curves of tunneling
By T. Nishimura, H. Kiyama, K. Wakimoto
Discussion on the load bearing capacity of ground and the stability of tunnel is presented. We derive a simplified solution of a circular lined-tunnel in an elastic ground. The solution results in a b
Jan 1, 2003
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The use of soundless chemical demolition agents in large scale in situ rock breaking applications in the mining industry
By P. L. Ngwenyama, I. Maubane
Soundless chemical demolition agents (SCDAs) are proving to be the future of sustainable and environmental-friendly mining. These expansive chemicals become critical when there is a need to break rock
Jul 23, 2025
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Development of a Blast-Induced Vibration Prediction Model Using an Artificial Neural Network
By S. Sinha, S. Ganguly
"In an opencast mine explosives are used for fragmentation of rock. Inefficient use of explosive energy in an opencast operation produces excessive ground vibration, which is measured by peak particle
Feb 1, 2019
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Shear-flow coupling properties of a rock joint and its modelling by Geographic Information System (GIS)
By Y. Mitani, F. Vallier, T. Esaki
Shear-flow coupling tests are conducted using an original apparatus, and a shear-flow coupling model using Geographic Information System (GIS) is developed in order to evaluate shear-flow coupling pro
Jan 1, 2003
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Characterisation studies of Tectonised Clay shales and implications in the excavation of large size tunnels
By Marco Barla, Mariacristina Bonini, Giovanni Barla
ABSTRACT: The paper describes the characterisation studies of Tectonised Clay Shales at laboratory and in situ scale. The interest relates to tunnelling under squeezing and swelling conditions, in Ita
Jan 1, 2003
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Potential Applications of Nanofiltration Membranes in Copper–Cobalt Processing
By L. A. Thompson, A. J. Linington
"Copper–cobalt extraction is a reagent-intensive process resulting in acid consumption greatly contributing towards production costs, which in the current market conditions curtail profitability. Nano
Jan 1, 2015
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A note on the strength of Flint particles
By N. A. Smith, R. J. Fowell, J. L. Hislam
Abstract: Data are presented from two sites in southeast England, where problems were encountered in tunnelling through ground containing flint. In response to the difficulties, substantial laboratory
Jan 1, 2003
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Feasibility of tailings retreatment to unlock value and create environmental sustainability of the Louis Moore tailings dump near Giyani, South Africa
By N. K. Singo, J. D. Kramers
The reprocessing of tailings resources to extract gold on an industrial scale has become common practice. While these projects are common in the Witwatersrand basin, similar low-technology processes a
Jul 1, 2021
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Who is a Competent Person?
By T. R. Marshall
SAMREC (The South African Code for the Reporting of Exploration Results, Mineral Resources and Mineral Reserves) Clause 7 notes that ‘Documentation detailing Exploration Results, Mineral Resources and
Sep 1, 2021
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Climate impacts of fossil fuels in today’s electricity systems
By L. Schernikau, W. H. Smith
Oil, coal, and gas account for approximately 80% of global primary energy, but only a portion of total airborne CO2 eq (approx. 35% at GWP20 to 65% at GWP100), even though they account for 95% of tota
Mar 2, 2022
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Underground storage in Sydney, some uncommon rock mechanics features of an uncommon project in Australia
By N. Gatelier, T. You, J. C. Kandel
ABSTRACT: Underground hydrocarbons storage is a very specific domain for the designer. He is usually free to adjust the section, shape and layout to cope with the geological and geotechnical condition
Jan 1, 2003
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Notices South African Council of Professional Engineers
The Registrar has requested us to publish the following notices: COUNCIL'S POLICY REGARDING LATE APPLICATIONS IN TERMS OF SECTION 18(4) (b) OF THE PROFESSIONAL ENGINEERS' ACT, 1968 (ACT N
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Development and application of new technology for 3D Geomechanical model test of large underground group caverns
By S. Jiansheng, H. Nakayama, D. Lu, A. Wang
ABSTRACT: New techniques and methods for 3D geo-mechanical model test are presented in this paper. The new model material NIOS with high density and low cost; the so-called DPSS (Discrete Principal St
Jan 1, 2003
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Challenges And Solutions In PGM Furnace Operation: High Matte Temperature And Copper Cooler Corrosion
The key aspects of process metallurgy that distinguish platinum group metal (PGM) concentrate smelting from that of other base metal sulphide concentrates are presented. These differences include cons
Jan 1, 2012
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Intelligent Gearing System - Solution To Understand And Correct Operational Conditions That Reduce he Fatigue Life Of A Girth Gear
By David Brown, Dirk van Dyk
Horizontal rotating mills are being used all over the world associated with different mineral and power generation industries. David Brown South Africa, with over 140 years of experience in gear manuf
Jan 1, 2007
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Numerical modeling of Hydro-Mechanical fracture behavior
By A. Pellegrino, F. Collin, C. Guiducci, R. Charlier
A numerical approach for modeling coupled Hydro-Mechanical fracture behavior in 2D is presented in this paper. This approach accounts for the strong dependence of the flow characteristics on fracture
Jan 1, 2003
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Supplementary Mineral Resources and Mineral Reserves Reports: Readability and textual choice
By P. W. J. Delport, E. Du Toit
Investing in a mining venture can be risky and stakeholders need transparent, unbiased reports to understand the Mineral Resources and Mineral Reserves a mining company holds. Readability and textual
Mar 1, 2021
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Use of Ion Exchange to Increase Value in Copper–Cobalt Operations
By J. van Deventer
Ion exchange is widely used in hydrometallurgical operations for the recovery and purification of valuable metals. Special chelating resins have a high affinity for specific elements, allowing the sel
Jan 1, 2023
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Behaviour of low molecular weight polymers as dispersants of oil sands tailings, H. Alizadeh, S. Finora, M.R. MacIver, and M. Pawlik
By M. R. MacIver, M. Pawlik, S. Finora, H. Alizadeh
The dispersion of mature fine oil sands tailings (MFT) by the addition of sodium lignosulfonate was studied using contact angle measurements, optical scattering, and particle size measurements. Lignos
Jan 1, 2020