Wet grinding of asbestos ores through reduction of slurry viscosities

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Mots clés : Industrial minerals;Asbestos;Grinding;Beneficiation;Health;Safety;Viscosity reduction
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Publication: CIM Bulletin
Auteur(s): MICHELPRUD'HOMME, JEAN-YVES TREMBLAY
Mots clés: Industrial minerals, Energy Mines and Resources, Market studies, Development trends, Agro-chemicals, Chemicals, Construction minerals, Ceramics.
Numéro: 912
Volume: 81
Année: 1988
Texte
Sommaire: Bricks made from local Paleozoic shales, and floor and wall tiles made from imported clays, both established record production volumes in 1985 and are the strongest segments of Ontario's clay products industries. However, renewed interest in traditional materials also supports a good market for clay flower pots and flue liners, and innovative processing studies are showing promise for possible new production of clay roofing tiles. This paper reviews the highlights of a comprehensive study of...
Publication: CIM Bulletin
Auteur(s): G.R. GUILLET
Mots clés: Industrial minerals, Clay, Refractories, Ontario, Bricks, Tiles, Sewer pipes, Flue liners, Aggregates.
Numéro: 912
Volume: 81
Année: 1988
Texte
Sommaire: A mineral processing investigation to recover chromite was performed at Lakefield Research, under the guidance of CANMET personnel, on a 70 tonne ore sample from the Bird River deposit in Manitoba. In the laboratory phase a flowsheet was developed which involved grinding, gravity separation and flotation. The gravity concentrates were upgraded by magnetic separation and the flotation concentrates by gravity concentration. Pre-concen-tration by electronic ore sorting, magnetic separation and...
Publication: CIM Bulletin
Auteur(s): P.R.A. ANDREWS, I. JACKMAN
Mots clés: Industrial minerals, Beneficiation, Chromites, Bird River, Grinding, Gravity separation, Flotation, Pilot plants, Pre-concentration, Laboratory beneficiation.
Numéro: 912
Volume: 81
Année: 1988
Texte
Sommaire: Fractures in mine hoist drumshafts are rare. We know of no previously reported attempts to repair a fractured drumshaf t; any feasible method would involve welding and the associated problems of distortion, crack formation and strength.
In June 1984, a fracture was discovered in the drumshaf t of the production hoist in the Teck Corporation, Lamaque Division Mine at Val d'Or, Quebec. Delivery time on a new shaft would have been at least six months. The shaft was repaired in ten days and the...
Publication: CIM Bulletin
Auteur(s): JAMES E. RIDER
Mots clés: Maintenance engineering, Drum hoists, Fractures, Mine hoists, Hoists, Fracture detection, Mine operation, Repairs.
Numéro: 912
Volume: 81
Année: 1988
Texte
Sommaire: In 1985, a crushing plant, located in the feed preparation area of Kidd Creek's copper smelter, was modified. The plant, which originally had treated only copper-bearing materials for the smelter, at a rate of 10 tonnes per hour, was expanded to 40 tonnes per hour capacity and modified to treat silica ores to meet the smelter's flux requirement and also gold ores from the company's Hoyle Pond property. In the storage area adjacent to the crushing plant a 300 tonne per day gold mill was...
Publication: CIM Bulletin
Auteur(s): G. MACFARLANE
Mots clés: Metallurgy, Crushing plants, Gold, Copper, Smelting, Mills, Silica drying systems.
Numéro: 912
Volume: 81
Année: 1988
Texte
Sommaire: Smelting of copper-gold ore from nearby Rossland mines started at Trail in the 1890s. As ore from the Rossland mines became exhausted, lead smelting of hand-sorted galena ore from other British Columbia mines was initiated. With the development of flotation technology for the separation of lead, zinc, and iron sulphides in the first two decades of this century, the large Sullivan orebody at Kimberley, British Columbia, became the foundation for the growth of a major zinc and lead smelter at...
Publication: CIM Bulletin
Auteur(s): C.A. SUTHERLAND
Mots clés: Plant technology, Smelters, Cominco, Zinc, Lead, Leaching, Modernization, Roasting, Electro winning.
Numéro: 912
Volume: 81
Année: 1988
Texte
Sommaire: The majority of Ontario's limestone and dolostone production comes from a few Paleozoic carbonate units. In eastern and central Ontario, Ordovician rock units, which are the main sources for production, include the Oxford, Gull River, Bob-cay geon, Verulam, and Lindsay Formations. They are predominantly utilized for aggregate and cement manufacturing, with the Bobcaygeon Formation being used as a source of building stone. Along the Niagara Escarpment, the Silurian Lockport, Amabel, and Guelph...
Publication: CIM Bulletin
Auteur(s): R.K. BEZYS, M.D. JOHNSON
Mots clés: Industrial minerals, Limestone industry, Geology, Paleozoic, Ontario.
Numéro: 912
Volume: 81
Année: 1988
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