The role of a pilot scale facility in performing R&D and helping Canadian coal and mineral industries

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Mots clés : Coal Mining;Research and development (R&D);Pilot-scale facility
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Publication: CIM Bulletin
Auteur(s): A.J. Keen
Mots clés: Polaris Mine, Arctic mining operations, Permafraost, Lead, Zinc, Mine management.
Numéro: 961
Volume: 85
Année: 1992
Texte
Sommaire: Environmental concerns have recently been growing over the disposal of reactive desulphurizing slag. Consequently, increased pressure has been placed on the foundry industry to reduce the reactivity of this slag.
To address this problem, Cyanamid has developed a new product which significantly reduces the calcium carbide content of the desulphurizing slag. Testing equipment and procedures have also been developed to evaluate both the existing levels of carbide in the slag and the decreased...
Publication: CIM Bulletin
Auteur(s): Bruce J. Barker
Mots clés: Environmental conems, Reactivity, Slag treatment, Calcium carbide desulphurizing, Desulphurizing.
Numéro: 961
Volume: 85
Année: 1992
Texte
Sommaire: The Kidd Creek copper smelter started operation in June 1981 using the Mitsubishi Continuous Smelting Process. A steady increase in plant production rates has been demonstrated, and the annual tonnage of concentrate smelted is now double the original design rate. This paper summarizes recent modifications made to increase concentrate feedrates, increase on-line time, reduce copper losses and control the impurity level in anode copper. It includes improvements made to furnace design, improveme...
Publication: CIM Bulletin
Auteur(s): C.J. Newman
Mots clés: Smelter operations, Kidd Creek Mines, Copper operations, Falcon-bridge Limited.
Numéro: 961
Volume: 85
Année: 1992
Texte
Sommaire: The role and benefits of using statistical methodology in the development and optimization of materials and processes is examined. It is shown that considerable benefits accrue from the use of an appropriate design in which a number of factors (process parameters) are varied simultaneously while the system response such as percent recovery, degree of separation, purity, etc. is monitored and ultimately optimized.
Compared with the commonly encountered one-factor-at-a-time approach, this...
Publication: CIM Bulletin
Auteur(s): G. Pouskouleli, T.A. Wheat
Mots clés: Statistical design, Research and development, Process optimization, Statistical process control.
Numéro: 961
Volume: 85
Année: 1992
Texte
Sommaire: In transitional mineralization, the sill of the underlying variogram is relatively easily estimated, but the estimation of the nugget effect may be more difficult. This study aims to determine for massive copper deposits just how sensitive the estimations of ore reserve, economic copper content, total net value, and ultimate pit limits are to the errors of estimation in the nugget effect of the spherical variogram model. A massive copper deposit which has a log-normal distribution and a...
Publication: CIM Bulletin
Auteur(s): E. Yalcin, A. Unal
Mots clés: Ore reserve estimation, Variogram estimation, Nugget effect, Block grade estimation, Pit limits, Massive copper deposits, Spherical variogram model.
Numéro: 961
Volume: 85
Année: 1992
Texte
Sommaire: The main components of a "PC"-based mineral inventory system are described in a sequence common to many real reserve/ resource estimation projects and in the practical context of problems and decision-making typically encountered in such studies. Some components are designed particuarly to improve the geostatistical instructional capability of the package. An important part of this approach involves the use of widely available software for data manipulation and evaluation in the...
Publication: CIM Bulletin
Auteur(s): G.H. Blackwell, A.J. Sinclair
Mots clés: Computer applications, Geostatistics, Personal computers, QMIN system, Resource estimation.
Numéro: 961
Volume: 85
Année: 1992
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