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Mechanization In Stoping Narrow Tabular Orebodies
By R. J. Kendall
As we enter the new millennium, the South African mining industry has to ensure that it becomes more competitive if it is to survive in the ever more demanding global environment. Traditionally, mech
Jan 1, 2000
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Risks Associated With Rockpasses In Deep-Level Tabular Mines Based On Historical Pass Performance
By W. C. Joughin
Problems with the stability and performance of rockpasses in deep-level mines are common. This paper presents the results of an investigation into the recorded performance of rockpasses in deep-level
Jan 1, 2005
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Some Practical Aspects Of The Use Of Lognormal Models For Confidence Limits And Block Distributions In South African Gold Mines (fb46b25c-eb38-486d-ae41-a92c3f6edf12)
By D. G. Krige
For the purpose of determining confidence limits for ore grade estimates, an extensive simulated database was used, which included 1728 ore blocks with ?actual? grades and the corresponding estimates
Jan 1, 2004
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Critical Aspects In The Definition Of The Optimum Configuration Of A Sulphur Burning Plant
By M. Verri
[ ]
Jan 1, 2009
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Keynote Address: Phase equilibria determination in complex slag systems
Despite the wealth of information available on phase equilibria of oxide systems there remainmany gaps and inconsistencies in our knowledge base. From an industry perspective there is anongoing need t
Jan 1, 2004
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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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Alternative Electrolyte Compositions For Aluminium Electrolysis
By S. Rolseth, J. Thonstad
The traditional electrolyte for aluminium electrolysis is based on molten cryolite (Na3AlF6), acting as solvent for the raw material, alumina (Al2O3). Over the years there has been a trend to increase
Jan 1, 2004
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Fracturing Around Highly Stressed Excavations In Brittle Rock
By J. Kuijpers
Failure and fracturing are often regarded as synonymous. While this is obviously true in an environment dominated by tensile stresses, it is still not clear how failure and macro fracturing are relate
Jan 1, 2000
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Single Level Extraction At Koffiefontein
By R. L. Pienaar
Paper written on project work carried out in partial fulfilment of B Eng (Min. Eng.) degree A study was conducted to investigated and compare the feasibility of two single level extraction layouts
Jan 1, 2006
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Management Of A Major Slope Failure At Nchanga Open Pit, Chingola, Zambia. - Synopsis:
By SDN Wessels, WA Naismith
On 16 July 2004, at 07:10 a collapse of about 1.8 million m3 (about 4 ½ million tonnes) took place on the north wall on Nchanga Open Pit This collapse was the result of a developing instability th
Jan 1, 2005
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Rock mass defect patterns and the Hoek-Brown failure criterion
By S. Read, G. Cook
The Hoek-Brown failure criterion is often applied to a wider range of rocks than the isotropic rock masses to which it is strictly applicable. This paper evaluates the patterns of defects in rock mas
Jan 1, 2003
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Synergistic Effects Among Dithiocarbonates (DTC), Dithiophosphate (DTP) And Trithiocarbonates (TTC) In The Flotation Of Merensky Ores
By W. Breytenbach
Traditionally, dithiocarbonates (xanthates) have been the preferred collectors for the flotation of platinum-bearing sulphides. However, collector development has led to trithiocarbonates (TTC), which
Jan 1, 2003
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Solid State Reduction Of Chromite With Co
By M. Reuter, C. Schuffeneger, T. Seppälä, L. Holappa
Reaction kinetics of solid-state reduction of chromite pellets (laboratory made and industrial) and lumpy ore was investigated by the thermogravimetric analysis (TGA) technique. Carbon monoxide was us
Jan 1, 2004
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Occupational health and safety in mining?status, new developments, and concerns - Synopsis
By M. A. Hermanus
This paper examines the occupational health and safety performance (OHS) of the South African mining sector against the backdrop of changes in the composition of the sector, international trends in OH
Jan 1, 2007
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Interaction Between The Block Cave And The Pit Slopes At Palabora Mine (9bc522bc-fe6d-493d-b039-b6a950e034a4)
By A. Moss
The Palabora Mining Company has successfully extended the life of its operation by developing a 30 000 tpd block cave underground mine below the now closed open pit. The process of transitioning from
Jan 1, 2006
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Investigation Of Surface Properties Of Gangue Minerals In Platinum Bearing Ores (987425e4-8c6a-401a-a26d-aaffefa9014a)
By J. Martinovic
The large proportion of gangue minerals present in platinum bearing ores in South Africa provides challenges to the flotation and downstream processes. In order to take effective measures to reduce th
Jan 1, 2005
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Quadratic Programming For The Multi-Variable Pre-Homogenization And Blending Problem
By M. Kumral
Raw material fed into a processing or refining plant is required to be uniform in composition for several reasons. When the mined ore is highly variable in quality the only way to ensure consistency i
Jan 1, 2005
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A Laboratory Investigation Into The Effect Of Specimen Size On The Strength Of Coal Samples From Different Areas
By J. N. Van der Merwe
The results of over 900 coal strength tests done during the period 1993?1994 for the SIMRAC project COL021A were re-analysed with a view to find a method to delineate areas or seams that can be groupe
Jan 1, 2003
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‘Salem Box Test’ to predict the suitability of metallurgical coke for blast furnace ironmaking
By Ravichandar. D., K. B. Nagashanmugam, M. S. Pillai
"Blast furnace performance depends strongly on the coke reactivity index(CRI) and coke strength after reaction (CSR) properties. An innovative and cost-effective method, known as the Salem Box Test, h
Jan 1, 2015
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Annual General Meeting of the Institute
The Annual General Meeting of the South African Institute of Mining and Metallurgy was held in Kelvin House on Wednesday, 24th August, 1977. Dr M. D. G. Salamon (President) was in the chair and dec
Jan 1, 1978