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A finite-element method model for a ferromanganese and silicomanganese pilot furnace
By V. K. Risinggård, M. Sparta
We report on the development of a finite-element method model for a pilot furnace for the production of manganese alloys. The model is a multiphysics model that addresses material flow, electrical con
Apr 16, 2024
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A pragmatical physics-based model for predicting ladle lifetime
By S. T. Johansen, B. T. Løvfall, T. Rodriguez Duran
In this paper we develop a physics-based model for lining erosion in steel ladles. The model predicts the temperature evolution in the liquid slag, steel, refractory bricks, and outer steel shell of t
Apr 16, 2024
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A Rapid Method of Estimating the Distributable Profit of Certain South Africa Gold Mines Receiving State Assistance
By J. J. leR. Cilliers
ABSTRACT The recently introduced concept of negative taxation complicates estimation of the distributable profit of certain South African gold mines, and an assisted mine could operate at a working l
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A review of the role of underground measurements in the historical development of rock engineering in South Africa
By D. F. Malan, J. A. L. Napier
This paper describes some important aspects associated with historical underground measurements in South African gold and coal mines. Deformation measurements were used to confirm the use of elastic t
May 1, 2021
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A Review of Work-Integrated Learning in South African Mining Engineering Universities
By L. A. Maseko
"As part of the mining engineering curriculum, students are required to be placed in industry for vacation work or work-integrated learning (WIL). In this paper we review work-based placement as done
Dec 1, 2018
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A simulation model to study truckallocation options
By E. Y. Baafi, H. Fan, W. Zeng
We present a discrete event simulator, TSJSim (Truck-Shovel JaamSim Simulator), for evaluating the stochastic and dynamic operational variables in a truck-shovel system. TSJSim offers four truck alloc
Dec 13, 2022
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A sustainable approach to derelict and ownerless mines in South Africa
By S. Mudau, P. Mohasoa, M. J. Cole
Derelict and ownerless (D&O) mines in South Africa have been an ongoing concern for over a decade. While some progress has been made to rehabilitate D&O asbestos sites, significant work remains, exace
Apr 25, 2025
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Ammonium thiosulfate leaching of gold from electronic printed circuit boards – effect of solution copper concentration
By J. Petersen, T. Moyo, D. Maharaj
This study investigates the effect of ammonium thiosulfate on the leaching of gold from the contacts of unpopulated cut electronic printed circuit boards (PCBs). Studies in the literature show ammoniu
Dec 11, 2024
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An assessment of Rare Earth Elements in borehole cores from the Ermelo, Witbank and Waterberg Coalfields, South Africa: Focus on mode of occurrence
By N. J. Wagner, D. G. Modiba
There is currently limited knowledge concerning South African coal deposits as hosts for rare earth elements (REE). This project aims to determine the concentration of REE, including yttrium and scand
Nov 6, 2024
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An Equipment Maintenance System
By D. W. Dean, J. A. Ryder
"A computer system designed to assist in maintenance scheduling and costing, and in monitoring the performance of equipment, is described. The emphasis is on the information retrieval and implementati
Jan 1, 2014
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Application of an empirical method and numerical modelling to the Merensky Reef crush pillar stability
By K. B. Le Bron, T. van Aard
The empirical pillar strength formulae have been widely, and in most cases successfully, applied to design underground pillars for mines in the Bushveld Igneous Complex (BIC). This paper presents the
Mar 5, 2025
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Appointment of women to mining boards – Evidence of tokenism
By N. V. Moraka
Mining companies are required by law to improve representation of women on their boards. However, progress in this regard has been slow. Boards of directors play an important role in formulating corpo
Dec 13, 2023
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Assessing coal mine closures and mining community profiles for the ‘just transition’ in South Africa
By A. T. van Zyl, M. Mthenjane, M. J. Cole
Growing global concern over the impacts of climate change, attributable largely to fossil fuel energy sources, has led to the widely shared goal for a ‘just transition’ to cleaner energy and reduced d
Jun 5, 2023
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Author's Reply
Dr Hanekom I would like to thank Dr Hanekom for a very valuable -contribution; it summarizes careful statistical test work which was an omission from the original paper. Minor manipulative details, t
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Carbothermic reduction of a willemite concentrate for use in the Waelz process
By V. A. Leão, V. S. Coimbra, V. A. A. Oliveira, R. F. M. de Souza, G. M. de Lima
A willemite concentrate consisting mainly of willemite (55.3%) and dolomite (15.6%) was reduced in a tube furnace with charcoal as reductant. The effects of temperature and varying reductant additions
Nov 6, 2023
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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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Colloquium On Comminution
By SAIMM Journal
COLLOQUIUM ON COMMINUTION The Institute has arranged a colloquium on the above topic to be held on 13th March, 1973, at Kelvin House. The following papers will be presented: 'Peripheral Discharge
Jan 1, 1974
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Concentration and distribution of cobalt in pyrites of the IOCG La Estrella ore deposit, Atacama Region, Chile J. Quevedo, R. Kuyvenhoven, X. Prieto, A. Parbhakar-Fox, and L.V. Danyushevsky
By R. Kuyvenhoven, A. Parbhakar-Fox, X. Prieto, J. Quevedo, L. V. Danyushevsky
This paper presents the results of a study focussed on determining the distribution of cobalt in different types of pyrite of the La Estrella IOCG deposit in Chile. In the IOCG mineral deposits, where
Jan 1, 2020
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Contributions to Discussion
A. H. Mokken: I am pleased to have been given this opportunity to make a contribution to Dr Muller's paper tonight. The reason for this is that, at one stage in our careers, we were associates in
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Copper solvent extraction on the African Copperbelt: From historic origins to worldleading status
By O. S. Tinkler, K. C. Sole
Approximately 20% of current world copper cathode output is produced using a hydrometallurgical process route, generally referred to as the leach–solvent extraction–electrowinning flowsheet. Since its
Jul 5, 2023