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Thermodynamics of CaF2-based melts containing MnO
By M. W. Davies, P. N. Smith
The activity of MnO has been measured in the system CaF2-MnO at 1773 and 1873 K and in the system CaF2-CaO-MnO at 1773 K by the method of equilibration with platinum. Large positive deviations from id
Dec 1, 1971
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The connexion between the north-western European coalfields.
By Stainier X.
The connexion between the Kent and the Continental coalfields on the one hand and the western British coalfields on the other has been for many years a controversial subject between geologists. These
Dec 1, 1916
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Standardisation of powered roof for longwall faces
By S K. Das
An intensive investigation into modern roof support technology, including hy draulic and control systems, has been carried out against the perspective of global development and support behaviour on lo
Jan 4, 1997
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Developments in wear-resistant materials for mining and heavy engineering applications
By J. V. Wood, P. Davies, J. L. F. Kellie
A new range of wear-resistant materials is being produced by technology that has been used to develop high performance metal-matrix composites. These include steels and aluminium alloys that can be ma
Jan 12, 1992
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The Prevention of Spontaneous Combustion in the North Nottinghamshire Area
By R. B. Scott, J. Hewitson
The paper investigates the historical information relating to spontaneous heatings which have occurred within the area from 1955 to date. From this information the seams most liable are identified and
May 23, 1905
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Preliminary modelling of groundwater inflows at Gays River mine, Nova Scotia, Canada
By R. Macleod, G. G. Bursey, T. R. C. Aston, J. E. Gale
In 1991 the problems of water inflow at the mine were addressed by a three-phase study. A three-dimensional finite-element computer code, CFEST (Coupled Fluid, Energy and Solute Transport), was used t
Jan 12, 1993
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Underground Heatings at Lynemouth Colliery
By M. Riddell
This paper describes the incipient heatings that occurred below ground in the High Main and Main seams at the mine between the years 1963 and 1966. The possible causes, effects and activities associat
May 23, 1905
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A glimpse of the future
By P Cochrane
Our ability to generate information and transport it about the planet on super highways of optical fibre is about to change the way in which we communicate, work and live. There is not a single aspect
Jan 7, 1996
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Power draw of wet tumbling mills and its relationship to charge dynamics, part 1: a continuum approach to mathematical modelling of mill power draw; part 2: an empirical appriach to modelling of mill power draw
The first part describes a model (the C model) based on the motion of the grinding charge. The charge is treated as a continuum, which allows analytical solutions to the equations that are developed.
Jun 18, 1905
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Ignition prevention
By J. S. WARWICK, E. J. Browning
Ignitions continue to occur underground, sometimes leading to major explosions. There has been considerable effort in the UK, and more widely in the European Community, to formulate the best ventilati
Jan 1, 1993
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New biological treatment plant for heavy metal-contaminated groundwater
By L. J. Barnes, R. O. Koch, J. H. Versteegh, C. J. N. Buisman, P. J. H. Scheeren
Several water treatment options have been studied and piloted. A process based on activity of sulphate reducing bacteria combines sulphate removal and heavy metal removal in one process step. The anae
Jan 12, 1992
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The Physical Chemistry of Copper Smelting
By Ruddle R. W.
An outline account is given of the smelting of copper and the chemistry of the process. A table provides compositions of the more important minerals from which copper is won by smelting. Roasting is d
Jan 1, 1953
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Thermodynamics of oxygen in liquid copper, lead and copper-lead alloys
By J. H. E. Jeffes, K. T. Jacob
Solid oxide galvanic cells, of the type: Pt,Ni-NiO | Solid electrolyte | O(metal),Cermet,Pt, were used to measure the activity coefficient of oxygen in liquid Cu at 1 100 and 1 300°C and in Pb at 1 10
Dec 1, 1971
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Mining education in the European Community
By C. T. Shaw
Fur a secure mineral supply position to be maintained in the Fiuropean Community there must be a supply of qualified people in the minerals industries. The education of the people required to run and
Jan 1, 1993
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Outline of mining law of England, Scotland and Wales
By R. M. Honey
An attempt is made to summarise the mining law of England, Wales and Scotland. Attention is also drawn to the recent privatisation of the electric power and gas industries and the intention of the pre
May 1, 1991
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Experimental study of phase relations at 600ºC in a portion of the Fe-Ni-Cu-S system and its application to natural sulphide assemblages
By R. E. T. Hill
"A laboratory study was undertaken to determine the condensed equilibrium phase relations at 600°C in that portion of the quaternary Fe-Ni-Cu-S system which lies in the neighbourhood of the monosulphi
Jan 1, 1984
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On the dynamic effect of frother-collector joint action in flotation
By J. Laskowski, J. Lekki
"The mechanism of joint action of a frother (alpha-terpineol) and a collector (ethyl xanthate) in the flotation of chalcocite has been examined. In order to study the dynamic effects of frother and co
Dec 1, 1971
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Closing remarks of the conference
Jan 1, 1947
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Role of contamination in the precipitation of sulphides in the Platreef of the Bushveld Complex
By J. E. Rouse, D. L. Buchanan
"During the emplacement of the Bushveld Complex in the Potgietersrus area magma reacted with the original floor rocks— Archaean granite or Malmani dolomite and overlying Penge handed ironstone or se
Jan 1, 1984
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Microflotation measurements based on modified Hallimond tube
By J. Drzymala, K. L. Wolters, T. Chmielewski, T. D. Wheelock, D. H. Birlingmair
Microflotation tests were conducted with a modified Hallimond tube equipped with a fritted glass disk and magnetic stirrer to determine whether the results would support an equation that predicts a li
Jan 4, 1992