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Probabilistic key-block analysis for support design and effects of mining-induced stress on key-block stability: a case study
By R. Trueman, D. B. Tyler
Numerical modelling was used to determine the magnitude and direction of stresses around drives both adjacent to and distant from open stopes in the South Crofty tin mine. Modelling predicted that dri
Jan 4, 1993
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Simulation of grinding circuit at Gumuskoy silver plant, Turkey
By B. Sonmez, B. Aksanl, S. Ersaym, I. F. Erkal, S. L. Ergun
The comminution circuit at the plant has experienced severe problems arising from a feed containing much larger amounts of clay and having a higher moisture content than expected. Three solutions were
Jan 4, 1993
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Primary sulphide mineralization in Cu-Fe-S zones of Kupferschiefer, Fore-Sudetic Monocline, Poland
By Z. Sawlowicz
Finely dispersed, primary sulphide mineralisation in the Cu-Fe sulphide zones of copper-bearing shale of the Polish part of the Permian Kupferschiefer is mainly present in the form of framboids and sp
Jan 4, 1992
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The Recovery of Sulphur From Smelter Gases
By R. W. Ruddle
The advent of new methods of roasting, “flash roasting and fluidisation”, which are now under development, combined with the use of oxygen-enriched air, may markedly increase the SO2 content of roaste
Jan 1, 1953
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Sampling of non-gaussian mineralogical distributions
By C. H. J. Beaven, M. P. Jones
Since the various new techniques of automation and computing have enabled vast numbers of mineralogical observations of relatively small samples to be made cheaply and rapidly, the statistical assessm
Dec 1, 1971
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The influence of incombustible substances on coal-dust explosions, by A.S. Blatchford (discussion)
Discussion following the presentation at the North of England Institute of Mining and Mechanical Engineers' general meeting held in Newcastle-upon-Tyne, 8th April 1916, included the author's introduct
Dec 1, 1916
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Role of SFCA in promoting high-temperature reduction properties of iron ore sinters
By A. G. Waters, N. J. Bristow
A comparative study was made of an untreated and a heated haematite ore and a sinter produced from a feed consisting of 100% ore, to study the influence on reduction behaviour of sinter bonding phases
Apr 1, 1991
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Growth performance of selected grass species on coal-mine overburden dump slopes in India
By S. K. Chaulya, R. S. Singh, B. B. Dhar
Two prominent local species, Dendrocalmus strictus (bamboo) and Saccharum spontaneum (kashi), and two exotic species, Cymbopogon citratus (lemon grass) and Vetiveria zizanoides (vetiver), were selecte
Jun 21, 1905
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Comparison of methods for evaluation of true flotation and entrainment
By V. E. Ross
A comparison was made of three methods for determining the contributions of true flotation and entrainment during batch flotation tests. In the first method size-by-size recoveries are measured in bot
Dec 1, 1991
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Thermodynamics study of oxygen in liquid lead-tin alloys
By J. H. E. Jeffes, K. T. Jacob
The activity coefficients of oxygen in liquid Pb-Sn alloys have been measured between 550 and 1100°C by use of solid oxide galvanic cells: Pt, Ni-NiO | Zr02 Solid electrolyte | O (Pb + Sn), Cermet, Pt
Dec 1, 1971
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The sampling of air-borne mine dusts
By D. G. Skinner, J. H. Griffiths, F. T. Williams, A. G. Withers
"The absence of homogeneity, in dust-clouds underground indicates the use of a method in which the volume of air sampled is an appreciable proportion of the total volume under consideration. Of the av
Jan 1, 1947
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Q&A with Dr Chris O'Connor and Andrew Duncan from DNV GL Oil & Gas
By R. G. Jones
Many novel projects suffer delays, cost overruns or failure because of inadequately qualified technologies. A new qualification to measure the quality of innovation is discussed.
Jul 1, 2015
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A review of the work of the Silicosis Medical Bureau, Johannesburg
By J. M. Smith
This resume provides an account of the work of the Bureau and it's establishment by an Act of Parliament in August 1916. The Medical Bureau is concerned solely with the administration of the medical p
Jan 1, 1947
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Spotlight on Stamler Corporation
By NA NA
Stamler Corporation manufactures of mining machinery and material handling equipment specialising in Feeder-Breakers to the mining and quarrying industries.
Jan 9, 1996
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Hydrothermal alteration associated with sedinent-hosted Rooiberg tin deposits, South Africa: contributed remarks; authors' reply
By R. Scheepers, J. E. Misiewicz, A. C. Fitzgerald
Discussion by A.C. Fitzgerald of the paper, published in Trans. IMM A, vol.104, 1995, p.B121-B135, is presented together with the authors' response. Fitzgerald points out a number of problems with the
Jun 18, 1905
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Application of digital signal processing and multivariate data analysis to vibration signals from ball-mill grinding
By Eric Forssberg, Vigen Zeng
During mechanical grinding high intensity vibration is emitted that contains information on the mill's operating state. Tests, using a laboratory ball mill, studied the influence of operating paramete
Jan 4, 1993
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Viscosity of sodium borosilicate slags containing copper oxide
By C. A. Pickles, S. J. Splinter, J. Cameron
The addition of copper oxide to a borosilicate slag resulted in the breakdown of the silicate network and a dramatic decrease in viscosity. With increasing borax to silica ratio the viscosity was redu
Jun 13, 1905
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Estimation of mechanical rock properties using wireline geophysical measurements
By L. Wade, R. Wang, M. A. Horton
Laboratory methods to find the mechanical properties of rock are inherently biased towards stronger strata, which best survive the sample preparation process. Geophysical techniques are not subject to
Jan 4, 1993
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Production planning with working-slope maximum-metal pit sequences
By D. D. Lei, H. Sevim
Long-term production planning in open-pit mines requires the determination of cut-off grade, mining and milling production rates, a mining sequence, mine life and ultimate pit limits. Since these vari
Jul 1, 1996
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Design and operation of a laboratory packed-bed reactor and its use to study the decomposition of calcium carbonate
By A. Paulin, A. W. D. Hills
The work has shown that packed-bed behaviour can be predicted from the results of single-particle experiments, total reaction times being predicted somewhat more accurately than gas and solid temperat
Dec 1, 1971