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Book news
1. Reviews Extraction metallurgy, by J.D. Gilchrist. 3rd ed. Oxford, Pergamon, 1989. 431 pp. £50.00 (hard cover), £14.95 (soft cover). Reviewer. Prof. M.D. Brayshaw. Reviewer. Prof. M.D. Brayshaw This
Jan 1, 1991
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Obituary: Badie Badenhorst
Gerhardus Paulus Badenhorst passed away on 2nd December, 1989. Badie, as he was known to all, will be missed by his many friends and colleagues, and will be remembered by al who knew him as a warm-hea
Jan 1, 1990
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Book review
Tunnel Construction 90. London, Institution of Mining and Metallurgy, 1990. Reviewer: J.A. Cruise This is the published volume of papers presented at the Tunnel Construction 90 Conference, whic
Jan 1, 1991
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The Simulation of Crushing Plants with Models Developed Using Multiple Spline Regression
By W. J. Whiten
Models of cone crushers and vibrating screens are described. These models have been constructed from actual plant data using a systematic model-building technique. Included in this technique is regres
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The selection of underground equipment for coal mines
By A. J. Raubenheimer
The most important criteria in the selection of mining equipment (mining conditions. operational performance, engineering design, manufacturer's involvement, and financial considerations) are dis
Jan 1, 1983
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Orange Free State Branch Proceedings of the Annual General Meeting
The annual General Meeting of the Branch was held in the St. Helena Club on Wednesday, 4th August, 1971 at 8.00 p.m. Mr N. A. Honnet (Immediate Past Chairman) was in the chair. There were also p
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Book review
H. W. Glen (ed.). Proceedings of Asbestos Symposium, Johannesburg, South, Africa, 3rd-7th, October, 1977. Randburg, National Institute for Metallurgy, 1978. 158 pp. (Copies obtainable from the Departm
Jan 1, 1978
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Review Of Evaluation Models For The Representative Sampling Of Ore
By N. O. Lotter
Evaluation errors and value frequency distribution models of the gold ore bodies in the Witwatersrand and Free State systems are reviewed. It is found that the low-grade sections of the data are prone
Jan 1, 1995
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Energy changes in a rockmass containing multiple discontinuities
By J. A. L. Napier
SYNOPSIS Many tabular mining problems can be modelled effectively by displacement-discontinuity techniques, which can be extended directly to represent fracturing on discrete planes and movements on
Jan 1, 1991
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A comparative study of kinetic models for the extraction of uranium by strong-base anionexchange resins
By M. J. Nicol
This paper ,examines the kinetics of the extraction of uranium from acid sulphate solutions by strongbase anionexchange resins. Parameters such as the concentration of uranium in solution. the agitati
Jan 1, 1980
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An Overview Of The Backfill Mining Technique For The Multi-Reef Conditions At Cooke 3 Shaft
By R. I. Klintworth
The multi-reef area of Cooke 3 Shaft provides a unique mining challenge on account of the very thin middlings between the pay bands and the marginal values of the reef. It is uneconomic or impractical
Jan 1, 1988
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A Rapid Method of Estimating the Distributable Profit of Certain South Africa Gold Mines Receiving State Assistance
By J. J. leR. Cilliers
ABSTRACT The recently introduced concept of negative taxation complicates estimation of the distributable profit of certain South African gold mines, and an assisted mine could operate at a working l
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Automation of the production drilling for Boliden Ltd, Garpenberg Mine
By M. Andersson, R. Elsrud
The quality and the production rate for the mining operations in the Garpenberg mine has been much improved due to a new system, that presents the latest exploratory and planning data for the driller
Sep 1, 2001
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Prediction of the performance of explosives in bench mining
Prediction of the performance of explosives In bench mining by C. M. LOWNDS, B.Se. Hons (Rhodes), Ph.D (Cape) (Visitor) Some of the problems encountered in the calculation of the relative weight stren
Jan 2, 1975
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Optimization Of The As-Placed Properties Of Hydraulic Backfill
By A. M. Copeland, A. J. Barrett
The use of hydraulically placed backfill in the deep gold mines of South Africa has increased rapidly over the past decade. The backfill that is delivered to the placement areas has a relatively high
Jan 1, 1994
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The Influence Of Water Quality On The Flotation Of The Rosh Pinah Complex Lead-Zinc Sulfides.
By R F. Sandenbergh, Y Wei
The flotation separation of the Rosh Pinah ore into lead and zinc concentrates are based on the selective flotation of the lead containing minerals followed by the activation and recovery of the zinc
Jan 1, 2007
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Seismicity Associated With Deep-Level Mining At Western Deep Levels Limited
By W. A. Lenhardt
During the past five years, several research projects on the causes of mining induced seismicity have been carried out by the Rockburst Research Department at Western Deep levels Limited. This paper s
Jan 1, 1992
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A brief description of a new metallurgical plant at St. Helena Gold Mines
By G. J. C. Young
The new metallurgical plant has a simple, compact layout, being designed for a small team of operators. The reasons for building the new plant are given, and its various sections are briefly described
Jan 1, 1978
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Trackless Mining at the International Nickel Company of Canada, Limited
By C. F. Hews
Trackless mining at the International Nickel Company of Canada, Limited by C. F. HEWS* (Visitor) An account is given of the evolution and advantages of trackless equipment in the underground operation
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Economic leaching at Rössing Uranium Limited
By C. C. Johnson
In the fourteen years that Rössing Uranium Limited has been in production, the metallurgical operations and controls on the leaching plant have evolved through four basic stages. Initially, the emphas
Jan 1, 1990