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Measurements and analyses of blasting vibrations
By J. Werfling, J. R. Kiehl
SUMMARY: The effects of blasting on structures are assessed on the basis of the maximum amplitudes of the occuring vibration velocities. If the standard values in the German Standard DIN 4150 are not
Jan 1, 2003
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Comminution Research At The University Of Cape Town
Comminution is a vital part of minerals extraction, and therefore of the South African economy. The high cost and throughput-limiting nature of comminution forms a strong motivation for research direc
Jan 1, 1998
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Stochastic simulation for budget prediction for large surface mines in the South African mining industry
By V. S. S. Yadavalli, J. Hager, R. Webber-Youngman
"This article investigates the complex problem of a budgeting process for a large mining operation. Strict adherence to budget infers that financial results align with goals. In reality, the budget is
Jan 1, 2015
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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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Metal Dusting On Alloys 602CA And 800 - Synopsis
By F. M. L. Mulaudzi
Metal dusting is a corrosion phenomenon that occurs in strongly carburizing gas atmospheres at elevated temperatures. Reaction kinetics and product characterizations of Alloys 602CA and 800 were exami
Jan 1, 2012
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Gas-Phase Extraction Of Lead And Iron From Their Oxides In A Fluidized-Bed Reactor ? Synopsis
By L. D. van Dyk
The extraction of iron and lead from their oxides with a volatile organic ligand such as acetylacetone in the gas phase offers potential advantages of lower energy consumption, recycling of the extrac
Jan 1, 2012
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Characterization And Batch Testing Of A Secondary Lead Slag
By A. E. Lewis
The emphasis of this paper is on the characterization and testing of the slag produced by a secondary lead refinery. This work forms part of a broader investigation aimed at reducing loss of valuable
Jan 1, 2000
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Investigation Into How the Magnesia, Silica, and Alumina Contents of Iron Ore Sinter Influence Its Mineralogy and Properties
The influence of varying amounts of magnesia, silica, and alumina in iron ore sinter on its mineralogy, reducibility index (RI), reduction disintegration index (RDI), physical breakdown (AI and TI), a
Jan 1, 2010
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Separation Performance Of Raw Coal From South Africa Using The Dense Gas-Solid Fluidized Bed Beneficiation Technique
By J. He
The separation performance of a raw coal sample from South Africa based on the dense gas-solid fluidized bed beneficiation technique was investigated. Analysis showed that the raw coal sample distribu
Jul 1, 2013
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An investigation of mechanisms involved in backfill-rock mass behaviour in narrow vein mining - Synopsis
By F. P. Hassani
Today, mine backfilling has become an integral part of mining operations, both from a local and overall ground control point of view, and as regards mining techniques and environmental considerations.
Jan 1, 2008
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Improved understanding of high pressure pre-grouting effects for tunnels in jointed rock
By N. Barton, E. Quadros
This paper addresses the prediction of groutable joint apertures, grout penetration limitations, and possible grout take volumes per cubic metre of rock, as a result of 5 to 10 MPa pre-injection press
Jan 1, 2003
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Burning pyrites compared to sulphur ? Synopsis
By W. V. Mutler
Present day capital costs are analysed for a 2 000 metric tonne per day (MTPD) pyrite burning plant and compared with a sulphur burning plant of the same capacity. Power, raw material and steam produc
Jan 1, 2009
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Safety Considerations When Handling Metal Powders - Synopsis
By J. M. Benson
Metal powder compaction offers unique advantages in the manufacture of net-shape components using techniques such as laser sintering, conventional press and sintering, metal injection moulding, direct
Jan 1, 2012
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A Philosophical View On The Testing Of Rock Support For Rockburst Conditions ? Synopsis
Physical testing of rock support for rockbursting conditions has been carried out for over 40 years. A review of this testing shows that it has been mostly component?based, rather than actually testin
Jan 1, 2012
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Estimating Mine Planning Software Utilization for Decision-Making Strategies in the South African Coal Mining Sector
By T. Celik, B. Genc, C. Musingwini
"Mine planning software continues to be an important factor when it comes to the development of the South African mining industry. To contribute to this development, a new methodology to define and me
Jan 1, 2016
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Identification of Key Performance Areas in the Southern African Surface Mining Delivery Environment
By A. W. Dougall, T. M. Mmola
"SynopsisThe global resources and commodities market has become highly competitive. While southern Africa’s abundance of minerals resources is still unrivalled, it has lost considerable dominance in t
Jan 1, 2015
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Exploration Of A Mature Copper Mining License - A Copperbelt Case History - Introduction
By T. P. Williams, M. B. Rydzewski, B. Corner
Konkola Copper Mines (KCM) plc is an integrated copper producer operating on the Copperbelt in Zambia. KCM has numerous mining operations located in the towns of Chililabombwe (Konkola Mine), Chingol
Jan 1, 2005
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An Integrated Limestone/Lime Process For Partial Sulphate Removal
By A. J. Geldenhuys
This paper will focus on two topics, namely (1) an innovative process for the neutralization and partial sulphate removal of acid streams produced during coal mining and processing and (2)optimization
Jan 1, 2003
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SA Calcium Carbide
By J. M. Sabio, A. W. Stalberg
Keywords: Pyrometallurgy, furnace, calcium carbide, acetylene, Newcastle The manufacture of calcium carbide in Newcastle, South Africa, was started in the late 1950s by a company called South Afri
Jan 1, 2006
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A Road Embankment Failure Near Pentalia In Southwest Cyprus
By P Papanastasiou, J Hadjigeorgiou, E Kyriakou
The south west area of Cyprus has a long history of slope instability problems. The location and extent of these landslides has been influenced by ground morphology, geological structure and the prese
Jan 1, 2006