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Local magnitude calibration of seismic events in the West Rand, Far West Rand, and Klerksdorp–Orkney– Stilfontein–Hartebeesfontein gold mining areas
By M. B. C. Brandt
Richter magnitudes for seismic events were calibrated for use as a Local magnitude scale in the West Rand (WR), Far West Rand (FWR), and Klerksdorp–Orkney–Stilfontein–Hartebeesfontein (KOSH) gold mini
Nov 1, 2021
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Flotation Developments And Upgrades At Impala Platinum?s Rustenburg Operations - Development Of A High Energy Flotation Plant For Ultimate Pgm Scavenging
By M. Kerr
Background- History The most significant change in mining since the late 1970?s has been the emergence of very large scale mining operations , which have been developed to ensure profitability wi
Jan 1, 2007
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Further design of quaternary diammonium reagents hosted on polymer nanofibers for hexachloridoiridate(IV) specificity, P. Moleko-Boyce, M. Ngayeka, and Z. Tshentu
By Z. Tshentu, M. Ngayek, P. Moleko-Boyce
This paper is focused on the development of iridium(IV)-specific quaternary diammonium cations containing electron-donating substituents in the benzyl group of methyl and electron-withdrawing substitu
Jan 1, 2020
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Rare Earth Extraction with Ionquest® 801 initial modelling development
By F. Dutoy, M. B. Stella, C. F. Carrozza
Rare earth elements (REEs) are indispensable components in the manufacturing of high-tech devices, renewable energy technologies, and defence applications. As global demand for these elements continue
Nov 6, 2024
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Clustering-based iterative approach to stope layout optimization for sublevel stoping
By M. Kumral, Y. A. Sari
Underground mining operations tend to have higher operating costs than surface mines. When metal prices decrease, profitability is jeopardized due to the high costs. Therefore, mining management harne
Mar 1, 2021
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Optimization of Conditions for the Preparation of Activated Carbon from Olive Stones for Application in Gold Recovery
By M. Louarrat, G. Enaime, A. Yaacoubi, A. Baçaoui, J. Blin
"The purpose of this study is to prepare a new activated carbon from olive stones for use in gold recovery by carbon-in-leach (CIL) and carbon-inpulp (CIP). The preparation method chosen was physical
Mar 1, 2019
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The thermal decomposition kinetics of carbonaceous and ferruginous manganese ores in atmospheric conditions
By F. Dinter, S. A. C. Hockaday, Q. G. Reynolds
The thermal decomposition of carbonate minerals as pre-treatment before smelting reduces the energy requirement for smelting. It can also make the combustion of fossil fuels for heating unnecassary. T
Aug 3, 2023
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Sensitivity of shotcrete Brazilian discs coated with thin spray-on liners to environmental conditions
By M. J. Kanda, T. R. Stacey
Thin spray-on liners (TSLs) have been used as sealants and rock support in tunnels for over 25 years. Laboratory tests have indicated satisfactory properties that can provide adequate strength, adhesi
Jul 1, 2021
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Study on flotation separation of cervantite and quartz using cationic collectors, J. Wang, F. Dong, Z. Wang, F. Yang, and D. Mingxia
By F. Dong, F. Yang, J. Wang, Z. Wang, D. Mingxia
Antimony oxide ores are important antimony resources, but their recovery is still a problem. In this paper, the adsorption behaviour and mechanism of dodecamine and quaternary ammonium salt on the sur
Jan 1, 2020
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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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Near real-time interpolative algorithm for mdelling air quality in underground mines
By E. Lutz, M. Momayez, K. W. Brown Requist
As real-time air quality monitoring becomes more prevalent in US underground mines, it is important to provide the highest data reliability with the fewest possible sensors. Real-time sensors remain c
Apr 16, 2024
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A review of the State's role in assisting gold mines in South Africa
By C. A. Border
This paper is a brief record of the State's involvement in the problems that have faced Iow-grade mines in the South African gold-mining industry for a period of more than sixty years. Not all th
Jan 1, 1981
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The novel EDS Multishaft Mill shows improved liberation and energy efficiency in comminution, B.E. Friedland and C.R. Royal
By C. R. Royal, B. E. Friedland
Energy & Densification Systems (EDS) has developed patented new technology crushing/milling equipment. The EDS Multishaft Mill is a compact vertical mill – utilising high-speed impacts to break down p
Jan 1, 2020
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Empirical Model of Recovery Response of Copper Sulphide Circuit at Kansanshi Mine
By F. K. Mulenga, M. Lusambo
"Geometallurgical models are a strategic tool used primarily in planning, diagnosis, and process optimisation. This paper discusses the development of a predictive model for flotation recovery at Kans
Nov 1, 2018
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Effect of LixTRA 118 Leaching Aid on Heap Leaching of Copper Ores – Column Study
By K. C. Sole, M. E. Mitshiabo
Although surfactants have proven to increase metal extraction by improving solution flow in porous media, these reagents have not been widely adopted in heap leaching operations because of potential i
Jan 1, 2023
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Development Of Innovative Funding Mechanisms For Mining Start-Ups: A South African Case
By J. Mothomogolo
Mining projects are capital-intensive and are also characterized by high technical and economic risks. These factors pose challenges to mining entrepreneurs when they seek to raise seed capital for mi
Jan 1, 2012
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Predicting rock fragmentation based on drill monitoring: A case study from Malmberget mine, Sweden
By H. Schunnesson, H. Fredriksson, D. Johansson, E. Söderström, S. Manzoor, A. Gustafson, M. Danielsson
Fragmentation analysis is an essential part of the optimization process in any mining operation. The costs of loading, hauling, and crushing the rock are strongly influenced by the size distribution o
Mar 2, 2022
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Separation of Kimberlite from Waste Rocks using Sensor-Based Sorting at Cullinan Diamond Mine
By N. Moemise, M. B. Shongwe, P. A. Olubambi, M. M. Ramakokovhu
"Near-infrared (NIR) spectroscopy sorting technology is incorporated in an automated optical mineral sorter that can discriminate between materials using the differences in characteristics when expose
Jan 1, 2016
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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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Statistical Valuation of Diamondiferous Deposits
By H. S. Sichel
Statistical valuation of diamondiferous deposits By H. S. SICHEL, D.Sc The valuation of diamondiferous deposits depends on (i) the density distribution, (ii) the size distribution of stones and (iii)