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Hand-held XRF sorting of spent refractory bricks to aid recycling
By N. P. Mabasa, N. Naudé, A. M. Garbers-Craig
An improved methodology is presented for assessing the economic feasibility and effectiveness of recycling MgO-C and Al2O3-MgO-C refractory bricks, which are widely used in the steelmaking industry. S
Jan 26, 2023
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Simulating pillar reinforcement using a displacement discontinuity boundary element code
By D. F. Malan, J. C. Esterhuyse
In this study we explore the use of a novel numerical modelling approach to study the effect of pillar reinforcement on pillar stability. Case studies in the literature indicate that tendons, strappin
May 3, 2023
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Flyrock in surface mining–Part 3: Shock wave, stress wave, blasthole expansion
By T. Szendrei, S. Tose
The generally accepted view in rock blasting is that the sources of energy for the fracture and movement of rock reside in the shock wave and gas action resulting from the explosion, and yet the mecha
Oct 9, 2024
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Estimation of cave geometry using a constrained velocity model inversion with passive seismic data - Synopsis
Careful monitoring of the position of the cave front is essential for well-managed block cave mining. Seismic monitoring systems yield 3-D information about the location of fracturing ahead of the cav
Jan 1, 2007
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Recycled Printed Circuit Board leach residue as an alternative reducing agent in secondary copper smelting, D. Attah-Kyei, G. Akdogan, C. Dorfling, and J.H. Zietsman
By G. Akdogan, J. H. Zietsman, C. Dorfling, D. Attah-Kyei
The development of newer and improved electrical products has led to an increase in the rate at which older products are discarded as waste. The main focus of electronic waste is the printed circuit b
Jan 1, 2020
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Optimization of Fe-Al bimetal preparation for mercury sequestration from gold processing waste solutions, E. Aghaei, R.D. Alorro, and B. Tadesse
By R. D. Alorro, B. Tadesse, E. Aghaei
Cinnabar (HgS) and native mercury (Hg) are the most common naturally occurring forms of mercury found in most gold ores subsequently released into the environment during processing. Mercury and its co
Jan 1, 2020
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Behaviour of coarse particles attached to a bubble within a rotating liquid flow field inside a confined cavity, M.M. Hoque, S. Mitra, R. Moreno-Atanasio, E. Doroodchi, G.M. Evans, and G.J. Jameson
By G. M. Evans, S. Mitra, G. J. Jameson, M. M. Hoque, E. Doroodchi, R. Moreno-Atanasio
In this study, the detachment behaviour of 314 μm diameter silica particles from a single 3 mm diameter bubble rotating in a confined cavity connected to a cross-flowing water channel was investigated
Jan 1, 2020
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Mining By Rock Cutting In Narrow Reefs
By K. Moxham, A. Smit, R. Pickering
Since the early 1970s research has been ongoing to develop a cost-effective way of continuously mining the narrow reef, hard rock, typical of South African gold and platinum mines. In the late1980s it
Jan 1, 2006
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Roll-to-roll coating methods for the manufacture of polymer electrolyte membrane fuel cell membrane electrode assemblies
By O. Barron, C. Felix
In 2023, polymer electrolyte membrane fuel cell membrane electrode assemblies accounted for about 62% of the global fuel cell market share and this demand is expected to grow. Commercialisation requir
May 27, 2025
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Selection, performance and economic evaluation of dust palliatives on surface mine haul roads - Synopsis
Excessive dust generation from unpaved mine haul roads is a problem common to most surface mining operations. While optimal road wearing course material selection parameters reduce the inherent dust g
Jan 1, 2007
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Stability design of slopes in carbonatite complexes characterised by brecciation
By D. Moses, J. A. Onyango
Carbonatites are generally competent rock masses with rock mass rating class II rating 60–74. In spite of their competency, they tend to be affected by weak features like manganese-iron veins and/or i
Sep 1, 2025
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Co-firing of high-ash discard coal and refuse-derived fuel – ash and gaseous emissions
By K. Isaac, S. O. Bada
This research focuses on the co-firing of discard coal with refuse-derived fuel (RDF) to utilize this abundant resource in South Africa for energy generation and reduce the volume of waste disposed of
Aug 2, 2022
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Reduction Rates of MnO and SiO2 in SiMn Slags between 1500 and 1650°C
By P. P. Kim, M. Tangstad, T. A. Larssen
"The kinetics of MnO and SiO2 reduction in SiMn slags based on Assmang/Comilog ore and HCFeMn (highcarbon ferromanganese) slag were investigated between 1500 and 1650°C under a CO atmosphere. The resu
May 1, 2019
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Effect of Roughness on the Peak Shear Strength of Clay Infilled Joints under Constant Normal Stiffness
By A. Haque
The shear behaviour of infilled joints produced from ordinary gypsum plaster (gyprock) and bentonite was investigated in the laboratory under Constant Normal Stiffness (CNS) conditions. Shear tests we
Jan 1, 2003
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Numbering of the Journal
Numbering of the Journal Because computer and library authorities prefer journal subscriptions to be based on the calendar year, and because the present numbering system of the Journal of the South Af
Jan 1, 1979
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Book news
1. Book reviews Physiochemical properties of molten slags and glasses, by E.T. Turkdogan. London, Metals Society, 1983.516 pp. £35. Reviewer: A.F .S. Scboukens Microstructural characterisation of meta
Jan 1, 1985
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Determining the expected and actual measurement performance of a by-line element analyser on a final product stream at Exxaro’s Grootegeluk 7 & 8 plants, H.N. Engelbrecht and M.V Roper
By and M. V Roper, H. N. Engelbrecht
Quality control interventions emanate from process upsets and trends that move product quality beyond the natural variation expected in a stable process. The ability to detect upset conditions and rea
Jan 1, 2020
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Factors influencing ore breakage in High Voltage Pulse pre-treatment, D. Lay, F. Shi, and C. Antonio
By F. Shi , D. Lay, C. Antonio
High Voltage Pulse (HVP) technology has the potential to transform traditional mineral processing practice in the mining industry. HVP pre-treatment has been shown to enable ore preconcentration, achi
Jan 1, 2020
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Shaft Sinking Methods Based On The Townlands Ore Replacement Project ? Raiseboring. - 1. Synopsis (1a409def-2d2d-4370-aaf2-3d4061365083)
By D. Visser
This paper is based on the Townlands Ore Replacement Project whereby the concept of conventional sinking of one large diameter shaft was declined and replaced with three smaller raise bored shafts. A
Jan 1, 2009
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Shaft Sinking Methods Based On The Townlands Ore Replacement Project ? Raiseboring. - 1. Synopsis
By D. Visser
This paper is based on the Townlands Ore Replacement Project whereby the concept of conventional sinking of one large diameter shaft was declined and replaced with three smaller raise bored shafts. A
Jan 1, 2009