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Effect of MgO and A12O3variations in oxygen steelmaking (BOF) slag on slag morphology and phosphorus distribution
By R. Boom, J. Halder, B. Snoeijer, B. Deo, A. Overbosch
Operational data of BOF and the slag samples for different starting conditions of phosphorus(0.06–0.26 per cent P) and silicon content (0.3–1.2 per cent Si) of hot metal have been analysed. The contri
Jan 1, 2004
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Density – A contentious issue in the evaluation and determination of Resources and Reserves in coal deposits
By L. Roux
The initial evaluation of a coal deposit often raises uncertainty with regard to the accuracy of the reported Resources and Reserves. Reconciliation of results from mining and beneficiation with the o
May 1, 2021
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What is your PGM concentrate worth?
By L. A. Cramer
There are a couple of dozen junior platinum mining companies coming into existence in Southern African and most intend to mine, concentrate the PGM?s in a flotation product and sell the concentrate to
Jan 1, 2008
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Electronic Delay Detonators ? A Unique Solution To Pertinent Mining Problems
By Raphael Banda
1 Initiating Systems ? a definition An initiation system is a combination of explosive devices and component accessories specifically designed to convey a signal and initiate an explosive charge
Jan 1, 2005
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Presidential Address: Witwatersrand Gold - Quo Vadis?
By J. R. Dixon
Gold mining has been undertaken in South Africa for more than a century. A great proportion of that mining has been from the Witwatersrand Basin; a geological phenomenon that has few parallels through
Jan 1, 1998
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The Performance Of Coatings Compared To Pt-Based Superalloys Intended For High Temperature Applications Subjected To Hot Corrosion: A Review
By L. A. Cornish, R. Süss, M. Sephton, N. B. Maledi, J. H. Potgieter, L. Chown
The gas turbine industry is faced with a challenge to improve the performance of engines, while simultaneously adhering to stringent environmental legislation. One way of addressing the problem is by
Jan 1, 2006
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A Managed Approach To Project Insurance
By N. Watson
Historically the insurance industry's involvement in any project has been relatively late in the process. Often it was a case of the last item to be ticked off the checklist has been to ensure th
Jan 1, 2007
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A Comparative Study Of Valuation Methodologies For Mineral Developments
By E. V. Lilford
Valuators of mineral properties are faced with a range of valuation methodologies, the most important of which are grouped under the headings of the market approach, the cost approach and the income a
Jan 1, 2005
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The Use of Unmanned Aircraft System Technology for Highwall Mapping at Isibonelo Colliery, South Africa
By C. Birch, M. Katuruza
"The purpose of this study was to demonstrate unmanned aircraft system (UAS) technology in opencast highwall mapping using the experience at Isibonelo Colliery in Mpumalanga Province of South Africa.
Mar 1, 2019
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Flotation of Mercury from the Tailings of the Agh-Darreh Gold Processing Plant, Iran
By M. R. Khalesi, Y. Kianinia, A. Seyedhakimi, F. Soltani
"The feed ore to Agh-Darreh gold processing plant (Takab City, Iran) contains 2 ppm Au, 7 ppm Ag, and 120 ppm Hg. After cyanide leaching of the feed at pH 10.4, 80% of the total mercury (in the form o
Jan 1, 2017
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Calculating Ecological Footprints for Mining Companies–An Introduction to the Methodology and an Assessment of the Benefits
By D. Limpitlaw, A. Alsum, D. Neale
"Ecological footprint analysis (EFA) was first described in 1996 as a measure of carrying capacity appropriated by human activities. EFA is a resource and emissions accounting tool designed to track t
Jan 1, 2017
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Numerical studies of the thermo-mechanical behaviour of rock mass around nuclear waste disposal repository
By S. O. Choi, H. -S. Shin, W. -K. Song
Nuclear waste should be disposed with the best warranty for the national health and welfare. Among the several repository systems, the deep underground disposal is considered to be a most suitable sys
Jan 1, 2003
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The Computer Mapping and Assessment of Borehole and Sampling Data for Stable Minerals, Particularly as Applied in Coal Mining
By M. Berjak, D. M. Hawlins, R. B. MacGillivray
SYNOPSIS The paper describes a method of producing iso line plans using a mathematical technique for interpolating between boreholes, and its computer application. The iso line plans are used for ass
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Mechanical Sampling - A Manufacturer?s Perspective
With the advent of the First World Conference on Sampling and Blending (WCSB1) in Denmark in 2003 and the subsequent biannual meetings, together with other sampling conferences held on a regular basis
Jan 1, 2014
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Notices Energy 73
ENERGY 73 The First International Energy Exhibition will be held in Brussels from 13th to 18th May, 1973. Vllth INTERNATIONAL CONGRESS ON CYBERNETICS This congress will be held in Namur, Belgium, from
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Optimal Valuation And Kriging - 9.1 Definitions: Kriging Estimator And Kriging Error
[Consider a square block W in an ore body S2, to be valued from one centre sample w, and one corner sample w2 (Fig. 9.1). The sample set is ws = Iw,;w21. We can estimate the block average µw by the a
Jan 1, 1978
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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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Modelling financial risk in open pit mine projects: implications for strategic decision-making - Synopsis
By S. A. Abdel Sabour
Strategic decisions in the mining industry are made under multiple technical and market uncertainties. Therefore, to reach the best possible decision, based on information available, it is necessary t
Jan 1, 2009
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Hard Rock Cutting And The Development Of A Continuous Mining Machine For Narrow Platinum Reefs - Introduction
By R. G. B. Pickering
The hard rock gold and platinum mines in South Africa have seen little development in the technology of mining. Holes are still drilled in the rock?though the latest water hydraulic rockdrills will co
Jan 1, 2002
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Notices Straszacker Report
Notices STRASZACKERREPORT The Institute has received, for its information, a copy of the following letter, which was addressed to The Federation of Societies of Professional Engineers: REPORT: COMMISS