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Processing low-grade coal to produce high-grade products
By G. J. de Korte
South Africa’s best-quality coal, located in the central Highveld basin, is becoming depleted and alternative sources of coal, such as the Waterberg coalfield, will have to be developed to supply the
Jan 1, 2015
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A Rock Mass Rating System For Evaluating Stope Stability On The Bushveld Platinum Mines
By B. P. Watson
Several large falls of ground occur annually in the narrow, tabular stopes mined in the Bushveld Complex. These falls comprise safety risks and cause substantial production losses and compromise effor
Jan 1, 2004
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Leachability Of Nitrided Ilmenite In Hydrochloric Acid - Synopsis
By J. J. Swanepoel
Titanium nitride in upgraded nitrided ilmenite (bulk of iron removed) can selectively be chlorinated to produce titanium tetrachloride. Except for iron, most other components present during this low t
Jan 1, 2011
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The Influence Of Mn On The Tensile Properties Of SSM-HPDC Al-Cu-Mg-Ag Alloy A201 - Synopsis
A201 aluminium alloy is a high strength casting alloy with a nominal composition of Al-4.6Cu-0.3Mg-0.6Ag. It is strengthened by the O(Al2Cu) phase and the ??(Al2Cu) phase during heat treatment. Furthe
Jan 1, 2011
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Engineers For The 21st Century - Minerals And Metals Industry
By P. J. Knottenbelt
Outcomes from a workshop organized through the SAIMM revealed that the minerals and metals industry must develop its ?Engineering Team? if it is to continue to meet the challenges of globalization. Th
Jan 1, 2002
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Origins Of Some Fractures Around Tabular Stopes In Deep South African Mines ? Synopsis
By G. van Aswegen
The geometry and morphology of a set of low-angle fractures around a stope in a deep Witwatersrand gold mine are explained in terms of extension fractures forming under variable conditions of stress.
Jan 1, 2012
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Extending Empirical Evidence Through Numerical Modelling in Rock Engineering Design
Models are used in engineering to reproduce reality as faithfully as possible so that the expected response of a system for given actions or inputs can be determined. In the field of rock engineering,
Jan 1, 2014
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Qualitative Analysis Of Fine Coals Obtained From Triboelectrostatic Separation ? Synopsis
By S. O. Bada
Coal samples taken from the No. 2 Seam and No. 4 Seam in a South African colliery were tested in a rotary triboelectrostatic separator. The two-stage triboelectrostatic separation results using the -1
Jan 1, 2012
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Innovated Solutions For Automated Charging And Stoking
By J. Dienenthal
Automatic Charging and Stoking Machines for use at ferroalloy furnaces are in operation for more than 20years. Dango & Dienenthal Maschinenbau GmbH (short: DDS) has developed several machine generatio
Jan 1, 2007
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Controlled Solidification Of Ferrosilicon
By L. Arnberg, E. Ott
The microstructure of ferrosilicon is important since it controls the disintegration of the material during crushing and thus the generation of fines. Therefore a study of the microstructure formation
Jan 1, 2004
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Mining An Open Pit Over And Through Old Sub-Level Caving Operations At Kwaggashoek East Open Pit, Thabazimbi Iron Ore Mine
By C J. de Beer
The Kwaggashoek East pit is one of the four production areas of Thabazimbi Iron Ore Mine. The Kwaggashoek East Open pit mines through the abandoned sublevel caving operations of the Kwaggashoek East u
Jan 1, 2006
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Mine seismicity: prediction or forecasting? - Synopsis
By S. M. Spottiswoode
Much as one hopes to predict whether damaging seismicity might occur somewhere in the next shift, this is not possible at present. Recently, an analysis of seismicity at two mines has shown that a sma
Jan 1, 2010
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A design methodology for mechanised stoping with stable support pillars at depth in the Bushveld Complex
By D. A. Spencer, L. J. Gardner
In light of the apparent productivity benefits provided by mechanised stoping, Impala Platinum Limited commissioned a study to investigate its possible implementation for mining reserves located 1200
Jan 1, 2003
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Use of Geostatistical Bayesian Updating to Integrate Airborne Radiometrics and Soil Geochemistry to Improve Mapping for Mineral Exploration
By J. M. McKinley
Mineral exploration programmes around the world use data from remote sensing, geophysics, and direct sampling. On a regional scale, the combination of airborne geophysics and ground-based geochemical
Jan 1, 2014
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Bias testing of cross-belt samplers - Synopsis
By G. Lyman
The cross-belt sampler is a device that is very widely used even though it has not been ratified by the Standards associations. This paper is concerned with the bias testing of two cross-belt sampler
Jan 1, 2010
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A More Corrosion Resistant Herculestm Alloy.
By M. J. Papo, A. Muwila
Hercules? is a low nickel austenitic stainless steel developed at Mintek that has a typical composition of 9 wt% Mn, 0.05 wt% C, 2 wt% Ni, 0.25 wt% N and 16.5 wt% Cr. A more corrosion resistant versi
Jan 1, 2006
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Design and Positive Financial Impact of Crush Pillars on Mechanized Deep-Level Mining at South Deep Gold Mine
By B. P. Watson
Crush pillars have been incorporated into a mechanized, low-profile trackless system at South Deep Gold Mine. These pillars had to be designed to fail near the face and to ensure that pillar failure i
Jan 1, 2014
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In Search Of Low Cost Titanium: The Fray Farthing Chen (FFC) Cambridge Process - Synopsis
By S. J. Oosthuizen
This article explores the Fray Farthing Chen (FFC) Cambridge process, a novel method for the electrochemical deoxidation of metal oxides in molten salt, discovered at the University of Cambridge in 19
Jan 1, 2011
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Reduced maintenance costs resulting from the use of wear resistant materials - Synopsis
By S. D. Viljoen
The use of ceramics to protect equipment subjected to wear in abrasive and corrosive applications has been accepted by most plants as the industry norm. Little is, however, known about alternative spe
Jan 1, 2010
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Seismology And Slope Stability In Open Pit Mines
By R A. Lynch, D A. Malovichko
The implementation of routine real-time micro-seismic monitoring of open pit mine slopes has been discussed. Some examples of seismic arrays have been given, and a recommendation of suitable seismic
Jan 1, 2006