Respect for employees: Clarifying expectations and authorities

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Sommaire: Crucible slag tests were employed to evaluate different refractory brick classes for the Cerro Matoso electric furnace. Comprehensive analysis was conducted to evaluate the crucible erosion and characterize any slag/refractory reaction products.
The classes of refractories investigated were:
• tar-impregnated magnesia;
• rebonded fused grain magnesia-chrome;
• direct bonded magnesia-chrome;
• alumina-chrome;
• picrochromite; and
• magnesia-alumina (spinel).
It was concluded that tar-impregnat...
Publication: CIM Bulletin
Auteur(s): J.R. Donald, P.H. Lauzon, J. Duran, R. Parra, L. Tejeda, C. Matoso
Mots clés: Metallurgy, Refractory brick, Crucible slag tests.
Numéro: 1031
Volume: 92
Année: 1999
Texte
Sommaire: The recycling of wastepaper has become an important and common process worldwide. Techniques similar to those used in the mineral processing industry are used to produce high quality recycled fibres for use in newsprint. The mineral processing group at McGill University, in conjunction with the Pulp and Paper industry (Mechanical and Chemi-mechanical Wood Pulp Network), has adapted one of these techniques, column flotation, for the purpose of deinking wastepaper. This article describes the...
Publication: CIM Bulletin
Auteur(s): C.A. Hardie, G.F. Leichtle, J.A. Watson, J.A. Finch, C.O. Gomez
Mots clés: Mineral processing, Recycling, Wastepaper, Deinking.
Numéro: 1031
Volume: 92
Année: 1999
Texte
Sommaire: A study, part of a doctoral dissertation (Matthias, 1991), was conducted during 1987 and 1988 to establish the means by which professionals assess and maintain their competence during the various stages of their careers. The study elicited responses from fifty-nine subjects representing engineering, pharmacy and medicine (twenty subjects from engineering, nineteen from pharmacy and twenty from medicine) on their perception and assessment of continuing competence. The findings revealed a wide...
Publication: CIM Bulletin
Auteur(s): M. Matthias
Mots clés: Human resources, Education.
Numéro: 1031
Volume: 92
Année: 1999
Texte
Sommaire: irtually zero gas emission smelting is promoted as a means for securing environmental advantages and the general publicÕs acceptance. Concerns about climate change will increasingly make it more difficult for new primary metals projects to come to fruition unless greenhouse gas emissions are decreased. Assuming a sustainable market for sulphuric acid is not locally available, the next best option is high temperature reaction of strong SO2 with limestone or dolomite. This is followed by CO2...
Publication: CIM Bulletin
Auteur(s): N.A. Warner
Mots clés: Metallurgy, Smelting, Copper, Nickel, Gas emission.
Numéro: 1031
Volume: 92
Année: 1999
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