Development of the Americ-Baker cellular mineral thermal insulating materials for buildings

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Mots clés : Americ-Baker;Insulating materials;Construction;Talc;Fillers;Binders;Sheet;Ceiling tile
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Texte
Sommaire: The development of a new wire rope tester incorporating Hall-effect devices to detect both loss of metallic area and broken wires with one instrument in a single testing operation is described. The extensive development had as one of its main objectives the desire to simplify the interpretation of the recorded traces of rope tests so as to broaden the utilization of the instrumentation and increase its value when used in conjunction with the usual visual examinations.
Publication: CIM Bulletin
Auteur(s): F. KITZINGER, J. R. NAUD
Mots clés: Electromagnetic testing, Ropes, Wire rope, Nondestructive testing, Magnograph, Hall Effect, Hoist ropes.
Numéro: 806
Volume: 72
Année: 1979
Texte
Sommaire: Gulf Minerals (Canada) Limited's Rabbit Lake uranium operation is located in the northern portion of Saskatchewan, 198 miles southeast of Uranium City and 134 miles northwest of Lynn Lake, Manitoba. The paper follows the ore flow through crushing, grinding, sulphuric acid leaching, counter-current decantation, solvent extraction, ammonium diuranate precipitation, thickening, drying and tailing neutralization.
Publication: CIM Bulletin
Auteur(s): A. B. CARING
Mots clés: Hydrometallurgy, Uranium metallurgy, Rabbit Lake deposit, Gulf Minerals Canada Ltd., Crushing, Grinding, Leaching, Decantation, Solvent extraction, Precipitation, Thickening, Drying, Tailing neutralization, Mill equipment.
Numéro: 806
Volume: 72
Année: 1979
Texte
Sommaire: SIDBEC commenced detailed planning of major capital expenditures to install integrated steelmaking facilities in 1969. Today, less than 10 years later, SIDBEC and its subsidiaries have completed major mining, concentrating, pelletizing, direct reduction - electric furnace steelmaking and continuous casting plants. The total cost of these projects was almost 1 billion dollars. The philosophy behind the project planning and the evolution of management control are explained. These extensive...
Publication: CIM Bulletin
Auteur(s): LOUIS TELLIER, TERENCE E. DANCY
Numéro: 806
Volume: 72
Année: 1979
Texte
Sommaire: Rio Algom Limited has mined uranium at Elliot Lake, Ontario for 20 years. The production of this energy-generating element results in the need to dispose of low-level radioactive solid wastes and liquid effluents. Because of the wet-temperate climate at Elliot Lake, the liquid effluents are of particular importance. Radium-226 is the isotope which requires most attention, and the current practice for its control is by addition of barium chloride and retention of the resultant precipitates in...
Publication: CIM Bulletin
Auteur(s): D. MOFFETT
Mots clés: Hydrometallurgy, Uranium metallurgy, Effluents, Radioactive effluents, Rio Algom Ltd., Waste disposal, Radium, Thorium, Lead, Polonium, Barium chloride, Quirke mill.
Numéro: 806
Volume: 72
Année: 1979
Texte
Sommaire: Blasthole sloping methods were introduced at Birchtree Mine as an alternative to the original cut-and-fill and shrinkage stoping methods. The object was to take advantage of the ore structure and conditions, and achieve increased productivity. This paper outlines the design, operation and economics of three areas which utilized blasthole sloping. The 108 area from 2300 level to 1500 level was converted from cut-and-fill to sub-level blasthole sloping based on a block mining-and-filling...
Publication: CIM Bulletin
Auteur(s): R. H. BROOKS, R. E. MYERS
Mots clés: Underground mining, Stoping, Blasthole stoping, Birchtree Mine, Pillar recovery, Vertical crater retreat mining, Drilling, Blasting.
Numéro: 806
Volume: 72
Année: 1979
Texte
Sommaire: The Similkameen Division of Newmont Mines Limited operates a low-grade open-pit copper mine in southern British Columbia. The copper mineralization is extremely erratic. As a result, over seven years of operation, ore control methods have evolved from standard flagging based on blast-hole assays, through an in-pit grab sampling system, to the present method of mining to computer-determined ore-waste boundaries based on geostatistics.These improved ore control methods have resulted in a gain...
Publication: CIM Bulletin
Auteur(s): GARY RAYMOND
Mots clés: Ore estimation, Grade control, Mineralization, Open-pit mining, Similkameen Mine, Copper ore, Kriging, Geostatistics, Computers, Variograms, Sampling, Ingerbelle orebody.
Numéro: 806
Volume: 72
Année: 1979
Texte
Sommaire: The subject matter of this paper will be discussed under three main headings.1.—Fire-Resistant Fluids: (a) the need for such materials, based on historical events; (b) a definition of fire-resistant fluids; (c) general description, characteristics, operational parameters, advantages and disadvantages of oil-in-water emulsions (HFB), water-polymer fluids (HFC) and anhydrous or synthetic fluids (HFD).2.—A review of equipment associated with the use of fire-resistant hydraulic...
Publication: CIM Bulletin
Auteur(s): M. B. MYERS
Mots clés: Underground mining, Fluids, Fire resistance, Lubrication, Hydraulic fluids, Pumps, Motors, Equipment, Bearings, Emulsions.
Numéro: 806
Volume: 72
Année: 1979
Texte
Sommaire: On January 1st, 1977, SIDBEC-NORMINES INC. purchased from Quebec Cartier Mining Company various facilities located at Gagnon and Lac Jeannine together with the Fire Lake deposit. At the same time, SIDBEC-NORMINES started its mining operations at Fire Lake, 83 km northeast of Gagnon.The paper summarizes the various adjustments which were necessary to satisfy the new production conditions, such as the physical and mechanical properties of the ore at Fire Lake, and the new crushing and loading...
Publication: CIM Bulletin
Auteur(s): MARCEL ALLARD
Numéro: 806
Volume: 72
Année: 1979
Texte
Sommaire: Since the start-up of its first Direct Reduction Module in April 1973, SIDBEC has produced over 2 million tons of prereduced iron. During this period, SIDBEC has acquired comprehensive experience in the operation of the direct reduction process and at the same time has learned to recognize the characteristics that the oxide should have to constitute an adequate feed for the process.A comparison is made as to the design and operation of the two direct reduction units now operating at Contrecoe...
Publication: CIM Bulletin
Auteur(s): A. H. MARQUIS
Numéro: 806
Volume: 72
Année: 1979
Texte
Sommaire: SIDBEC-NORMINES was incorporated in 1976. In addition to the production of concentrate at Lac Jeannine, near Gagnon, from ore extracted from the Fire Lake mine, its operations now include, since the end of 1977, a secondary concentrator and a pelletizing plant at Port-Cartier.The main objective of SIDBEC-NORMINES is to produce annually six million tons of iron oxide pellets, of which three million tons with a low silica content are to meet the requirements of direct reduction.SIDBEC-NORMINES'...
Publication: CIM Bulletin
Auteur(s): REJEAN LEVESQUE, WON POIRIER
Numéro: 806
Volume: 72
Année: 1979
Texte
Sommaire: The continuing increase in costs for power and fuel are affecting significantly the cost of milling Canadian ores. In order to ascertain the scope and source of energy consumption in Canadian mills for further energy conservation opportunities, CANMET, in cooperation with the Canadian Mineral Processors, carried out a detailed survey on the metallic mineral processing plants. Sixty-seven mills representing almost 300 million tons of annual capacity participated in the survey. The results...
Publication: CIM Bulletin
Auteur(s): E. G. JOE
Mots clés: Milling, Energy, Mineral processing, Fuel costs, Iron ore mills, Copper ore mills, Nickel-copper ore mills, Lead-zinc ore mills, Molybdenum ore mills, Gold-silver ore mills, Uranium ore mills.
Numéro: 806
Volume: 72
Année: 1979
Texte
Sommaire: Trend surface analysis was used to investigate the geochemical dispersion patterns of Si, Al, Fe, Mg, Ca, Na, K, Tiand Rb in the footwall of the Seneca massive sulphide prospect in southwestern British Columbia. Surfaces for various element ratios were also produced to see if the distributions of the elements are related to each other.Trends developed by the elements redistributed during hydrothermal alteration may be difficult to detect for various reasons, such as too few and widely...
Publication: CIM Bulletin
Auteur(s): R. A. GANNICOTT, G. A. ARMBRUST, F. P. AGTERBERG
Mots clés: Exploration, Geochemical exploration, Trend surface analysis, Hydrothermal alteration, Geostatistics, Computers, Seneca prospect, Massive sulphide deposits.
Numéro: 806
Volume: 72
Année: 1979
Texte
Sommaire: Environmental considerations are of increasing importance in determining the acceptability, schedule and cost of expansion of Canada's uranium processing industry. Environmental considerations must be addressed in the early stages of facility planning. This results in a dilemma, as the process data needed to predict physical environmental impacts are not yet available from process design activities. Hence, a business risk is incurred if plant design is carried forward to meet these requiremen...
Publication: CIM Bulletin
Auteur(s): J. P. JARRELL, D. B. CHAMBERS
Mots clés: Hydrometallurgy, Uranium metallurgy, Environmental control, Uranium refineries, Eldorado Nuclear Ltd., Radioactive waste, Waste disposal, Port Granby.
Numéro: 806
Volume: 72
Année: 1979
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