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A New Methodology For The Analysis Of The Relationship Between Rock Brittleness Index And Drag Pick Cutting Efficiency
By R. M. Goktan
Rock brittleness plays an important role in the cutting action of picks on rock surfaces. It controls the ease with which cracks can propagate through the rocks. Although rock brittleness is known as
Jan 1, 2005
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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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Release Analysis of Coal Fines: Evolution of the Methodology and Critical Issues Involved
By L. Sahu, S. Bhattacharya, S. Dey
"An ideal procedure to determine the limits of flotation-based separation, as is the case with washability analysis for density separation, does not exist. Therefore, a procedure called release analys
Jun 1, 2019
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Optimisation of Circuits for Pressure Leaching of Sulfide Ores and Concentrates
By Fadeela Saloojee, Frank K. Crundwell
"Pressure leaching is an option for copper recovery from chalcopyrite. Leaching takes place at high temperatures and pressures in the presence of an oxidising agent. This work shows how the performanc
Jan 1, 2015
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Improved Variography Using Simulated Annealing to Adjust Sample Locations to Align With Diamondiferous Linear Beach Structures
At Namdeb, submerged beaches are earmarked for sampling and future mining and various sampling configurations are tested for optimality through the use of spatial simulations. For the creation of thes
Jan 1, 2014
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Annual Report - For The Year Ended 30th June, 1999
Council for 1999/2000 President J.R. Dixon President Elect M.H. Rogers Vice Presidents Senior Dr L.A. Cramer Junior A.A.B. Douglas Immediate Past President R.P. Mohring Ho
Jan 1, 1999
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Time-Dependent Tunnel Deformation At Hartebeestfontein Mine
By J. D. Bosman
The problems associated with squeezing rock conditions in tunnels are well known and have been extensively investigated in the past. Although squeezing conditions are predominantly found in tunnels de
Jan 1, 2000
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Total Primary Milling Cost Reduction By Improved Liner Design - Synopsis
By J. Dahner
Total milling cost is composed of energy, liner and grinding media costs. In primary high ball load milling, the grinding media play the biggest role in total milling cost. This cost can be drastical
Jan 1, 2011
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Introducing new Council members (8abfb381-4e73-40b7-9db7-58d2171c5e01)
Mr K.R. Beard was born on 19th December, 1958. He attended Marist Brothers College, Observatory, and Marist Brothers College, Linmeyer. He was awarded a bursary by SEIFSA (Steel and Engineering Indu
Jan 1, 1989
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The Upgrading Of An Inferior Grade Zircon To Superior Opacifier For Sanitary Ware And Glazes
By E. Snyders
The upgrading process of an inferior grade of zircon to a superior opacifier for ceramic applications was investigated. A calcining process in the presence of mineralizers was used to produce the prod
Jan 1, 2005
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Study on the coal gas pressure dynamic distribution law ahead of tunnelling - Synopsis
By Li-ming Qi
During mining, the stress in the coal face varies, and, at the same time, the gas flows from the coal body into the excavation, which will cause the gas pressure to change continuously. Assuming the c
Jan 1, 2007
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Copper And Cobalt Extraction From Sulphate Solution Using Natural Clinoptilolite
By D. Nyembe, B. Mamba, Antoine F. Mulaba-Bafubiandi
Copper and cobalt are generally electro-won from their aqueous sulphate solutions. After optimised leaching of their ores, concentrates or calcine bearing minerals, the leachate is clarified and suita
Jan 1, 2007
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Simulation of Hopkinson effect by discrete element method
By Harushige Kusumi, Yuzuru Ashida, Toshiki Watanabe, Toshifumi Matsuoka
ABSTRACT: The technique of various kinds of numerical analysis offered remarkable results to explication of many rock mechanical phenomena. These techniques regarded a rock stratum as a continuum bod
Jan 1, 2003
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Cellular communications for underground mines
By C. E. Doran
Since the early 1990s the underground mining industry has embarked on a vigorous program of improving process and eliminating costs. A leading development in this program has been the implementation o
Sep 1, 2001
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Testing Of An On-Board Active Suppression System For French Mining Conditions
The French research institute, INERIS, requested the assistance of the CSIR?s Division of Mining Technology in developing further precautionary measures against explosions in their collieries. In resp
Jan 1, 2001
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Seat Selection Guidelines To Reduce Whole-Body Vibration Exposure Levels In The SA Mining Industry
By J. Gunaselvam
This article deals with an investigation into the specification and use of appropriate seating systems to reduce whole-body vibration (WBV) exposure in typical vehicles used in the SA mining industry.
Jan 1, 2005
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Small-Scale Recovery Of Noble Metals From Jewellery Wastes
By J. H. Potgieter
This paper describes an investigation to separate and selectively recover silver, gold and platinum from jewellery and laboratory wastes, and produce technical grade material suitable for training pur
Jan 1, 2004
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Recovery Of Cobalt From Slag In A DC Arc Furnace At Chambishi, Zambia
By R. T. Jones
The 20 Mt reverberatory furnace slag dump at Nkana in Zambia contains a substantial quantity of cobalt. A 40 MW DC arc furnace has been built at Chambishi for the purpose of recovering cobalt from the
Jan 1, 2002
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Casting And Cooling/Crushing Of Silicon Metal And Silicon Alloy At Bécancour Silicon Inc.
By D. Ksinsik, R. Boisvert, D. Leblanc
Casting, cooling and crushing/sieving of ferroalloys has followed a well-established pattern in the whole ferroalloys industry for many years. Usually liquid metal or alloys are cast into flat open m
Jan 1, 2004
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Detection of systematic errors in the data used for mass balancing using the Movazen© software, M.R. Yarahmadi, S.R. Mortazavi, and S. Banisi
By S. Banisi, M. R. Yarahmadi, S. R. Mortazavi
Nowadays the development of automatic on-line sampling systems has enabled large amounts of data to be available to plant managers. These data are inevitably prone to random and sometimes systematic e
Jan 1, 2020