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Mining with caved in bed, method used in the Jiu Valley—Safety and technical issues
By L. Jurca, C. Gligor
After 1990, a great process of re-organisation and economic reform has occurred in the Romanian mining sector and especially in the pitcoal mining in the Jiu Valley. This process has included both leg
Jan 1, 2003
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Something for nothing?—An unconventional approach to extracting three-dimensional grade information from two-dimensional estimation of thin, tabular reef deposits
This paper presents an initial investigation into the viability of co-kriging the grades of multiple mining cuts in a two dimensional, thin reef scenario. Deposits with gradational mineralized zones,
Jan 1, 2003
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Fundamentals of freeze lining behaviour in ilmenite smelting
Changes in reductant and energy inputs which are required to adjust the slag composition in anilmenite smelter to a higher or lower FeO content are calculated. The calculated changes are based on the
Jan 1, 2003
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Trithiocarbonates For PGM Flotation
By C. F. Vos, J. D. Miller, J. C. Davidtz
Small replacements of C12-trithiocarbonate (C12-TTC) for dithiocarbonate (DTC)/dithiophosphate(DTP) in a reagent suite for the flotation of platinum group metals (PGM) have significantly improved the
Jan 1, 2006
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The Application Of In-Mine Electrical Resistance Tomography (ERT) For Mapping Potholes And Other Disruptive Features Ahead Of Mining
By M. van Schoor
The bulk of the world?s platinum production originates from the Merensky and UG2 reefs within the Bushveld Complex, South Africa. Both the Merensky and UG2 reefs are disrupted by faults, dykes, pothol
Jan 1, 2005
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CFD modelling of methane movement in mines
By D. Whittles, C. J. Lea, T. X. Ren, A. Kelsey
A methodology for the simulation of methane drainage combining geotechnical modelling and computational fluid dynamics (CFD) will be described. Geotechnical modelling was used to predict the developm
Jan 1, 2003
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Rock-Related Fatality Trends In The South African Gold Mining Industry
A South African gold mining rock-related fatal accident database has been analysed in order to determine rock-related fatality trends in the gold mining industry over the period 1990 to 1998. This ana
Jan 1, 2001
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Modelling Of Al, Si, Mn And Ti Partition Between Slag And Fe-Ni Alloys
By S. Witzke, J. Lehmann, H. Gaye
The modelling work presented here concerns Ni-bearing steels produced by Imphy Ugine Précision. In such grades, the contents of elements such as silicon or titanium must be precisely controlled by sla
Jan 1, 2004
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Experiments on stope closure as a diagnostic measure of rock behaviour
By D. F. Malan, M. Grave, J. A. L. Napier
Previous fundamental research projects have indicated the value of continuous closure measurements in deep tabular excavations for improved support design, hazard assessment and for quantifying the ef
Jan 1, 2003
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Metals And Alloys Water Solidification A Bridge From Pyro- To Hydro-Metallurgy
By David Norval
The increased tendency to use hydrometallurgy as an extraction step towards final refining following a pyrometallurgical smelting process requires melts which have to be cast and or comminuted which c
Jan 1, 2005
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Coupled Elasto-Plastic Model for Hydraulic Fracturing of Unconsolidated Formations
By I. Gil, J. -C. Roegiers
Abstract Hydraulic fracturing is a technology that has been utilized for more than 50 years in the oil industry. It was originally used for stimulating hard, brittle formations which typically exh
Jan 1, 2003
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An Algorithm To Construct Industry Cost Curves Used In Analysing Cash Cost Performance Of Operations For Selected Minerals In South Africa
By T. Tholana
South Africa hosts some of the world?s largest known resources and reserves of minerals that are strategically important to the global economy. The country?s mining industry contributes significantly
Jun 1, 2013
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Criteria For Utilization Of By-Products From The Ferro-Alloy Industry
By Willem C. A. van Niekerk, David A. Baldwin, Nardus Potgieter, Willie A. Gericke
Authorities that regulate environmental issues pertaining to industrial wastes in South Africa regard landfill disposal as the only effective environmental management option for slag and other inorgan
Jan 1, 2007
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Sensitization Behaviour Of 11-12% Cr AISI 409 Stainless Steel During Low Heat Input Welding ? Synopsis
By C. J. Van Niekerk
The study comprised of the investigation into the sensitization characteristics of AISI 409 titanium stabilized ferritic stainless steel during low heat input welding. AISI 409 is a fully ferritic sta
Jan 1, 2011
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A Progress Report On Ultra-High-Pressure Waterjet Cutting Underground: The Future Of Narrow Reef Gold And PGE Mining
By C. D. K. Gauert
High-pressure waterjet technology is proposed as an alternative tool for selective underground mining of high-grade ore sections in stratiform orebodies showing a preferred ?bottom? or ?top? enrichmen
Jan 1, 2013
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Modelling And Prediction Of Reactions Involving Metals, Slags And Fluxes
By J. Lehmann, H. Gaye
A brief review of Computational Thermodynamics software concerning the modeling and prediction of reactions involving metals, slags and fluxes is presented. Their application for various steelmaking t
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Optimizing LHD Utilization ? Synopsis
By D. Mkhwanazi
The purpose of the project was to optimize load haul dump (LHD) machinery use as they were spending too much time doing what they should not be doing. During the investigation, the author found that t
Jan 1, 2011
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Low-Silicon Ferrosilicon Production From Iron Ore Materials In An Oxygen Reactor
By A. V. Pavlov, V. A. Grygorian, Kossyrev, A. E. Semin, A. Korostylev
A new way of producing low-silicon ferrosilicon from iron-ore materials in a new type of aggregate-oxygen reactor is presented. The oxygen reactor process is based on using the calorific combustibilit
Jan 1, 2004
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Semi-Controlled Seismogenic Experiments In South African Deep Gold Mines
By H. Ogasawara
To study the preparation process of an earthquake, we should get closer to the hypocentre. In co-operation with ISS International, we had an experimental field (~200 m x~200 m) without dykes and fault
Jan 1, 2002
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Infacon X Organising Committee
[Dr. N.A. Barcza (Chairman) Mr. R.J. Linnell (Vice Chairman) Mr. J. Basson Dr. L.A. Cramer Mr. W.A. Gericke Dr. N.C. Machingawuta Mr. C.S. Mahony Dr. L.R. Nelson Mr. D. St J. Slater
Jan 1, 2004