X-ray barium sulphate for North America

Abstract A unique deposit of barite exists near Brookfield, Nova Scotia. The crystals are extremely fine and the whole deposit virtually free of heavy metals. The deposit size was not large enough for conventional uses, such as the production of barium carbonate and drilling mud. In an effort to obtain maximum utilization, a program was begun to determine if U.S.P.-grade pharmaceutical barium sulphate for X-ray diagnosis could be produced.Early work was sufficiently encouraging to institute a development program under the federal Program for Advancement of Industrial Technology. This has been very successfully completed. Canadian and U.S. process patents have been issued, clinical trails have been successful, a production plant has been designed and the plant's production sold.The processing plant will include magnetic separation for the removal of iron minerals, fine grinding by paddle milling to minus one micron and acid leaching. The process is unique in that at no time is the barium taken into solution.Information is given on the deposit, process, markets, use, plant capital and operating costs, and projected profits. The initial production plant will have an annual capacity of 2,000 tons per year of end product. Capital cost is $850,000 and annual turnover more than $1.5 million. As this capacity only represents approximately 15% of the North American market, rapid plant expansion is foreseen.
Keywords: Industrial minerals, Barite, Barium sulphate, Magstone Development Inc., Paddle mills, Jones magnetic separator.
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Publication: CIM Bulletin
Author(s): AL HOLMES
Issue: 820
Volume: 73
Year: 1980
Text
Publication: CIM Bulletin
Author(s): P.E. WEIDMARK
Issue: 820
Volume: 73
Year: 1980
Text
Summary: The use of approved fire-resistant hydraulic fluids in equipment operating underground was made mandatory in British Columbia by amendment to the Provincial Mines Regulation Act effective January 1, 1975. This paper covers the action taken to achieve this, in the largest underground metal mine in British Columbia. Some evaluation of costs and effects based on experience to date is included.
Publication: CIM Bulletin
Author(s): J.W. REYNOLDS
Keywords: Fluids, Fire-resistant fluids, Hydraulic systems, Sullivan Mine, Safety.
Issue: 820
Volume: 73
Year: 1980
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Summary: The history and analysis of a structurally complex open-pit rock slope displacement are described. The failure involved part of the only haulage access to a major ore zone. The ongoing movement was monitored using an electronic distance-measuring device and a continuous electronic system specifically designed for the problem. A major fault, infilled with a thick clay gouge, and intersected by other structural features, resulted in the transfer of weight to a rock mass acting as a buttress in...
Publication: CIM Bulletin
Author(s): PETER N. CALDER
Keywords: Rock mechanics, Slope displacements, Pit slopes, Brenda Mines, Faults, Blasting, Monitoring systems, Failure analysis, Safety factors, Drainage.
Issue: 820
Volume: 73
Year: 1980
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Summary: A morphological and chemical study of the Great Canadian Oil Sands Ltd. (GCOS) fly ash has been carried out. Extensive scanning electron microscopy, as well as light microscopy, showed that the GCOS fly ash consists of two fractions, one composed of unburnt or partially burnt irregular-shaped carbon particles and an ash fraction composed of transparent and opaque, often coloured, glassy spherical particles—some of them cenospheres (hollow spheres) and the othersplerospheres (hollow...
Publication: CIM Bulletin
Author(s): C.O. GOMEZ BUENO, G.L REMPEL, D.R. SPINK
Keywords: Mineral processing, Athabasca tar sands, Fly ash, Microcrystals, Size fractions, Environmental control
Issue: 820
Volume: 73
Year: 1980
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Summary: Detailed studies have been conducted on the dispersion of uranium in stream waters and sediments around various types of mineralization and hitherto unexplained anomalous areas in the Okanagan Valley and Highland region of south-central British Columbia. These studies were part of the jointly funded and planned Federal-Provincial Uranium Reconnaissance Program of the Geological Survey of Canada and the British Columbia Ministry of Energy, Mines and Petroleum Resources. Statistical analysis of...
Publication: CIM Bulletin
Author(s): D.R. BOYLE, S.B. BALLANTYNE
Keywords: Geochemistry, Uranium dispersion, British Columbia, Stream waters, Sediments, Draining systems, Lassie Lake area, Grand Forks area, Beaverdell area, Midway area, Blue Springs area, Okanagan region.
Issue: 820
Volume: 73
Year: 1980
Text
Summary: The low cost and availability of micro-computers and their peripherals provides the metallurgical engineer with the opportunity to use such computers in a wide variety of applications. In this paper, the authors describe the development of a low-cost data acquisition system capable of measuring up to 8 analogue channels at a sampling rate of up to 5000 measurements per second. This system is equipped with proper hardware and software so that the micro-computer can be linked to a central...
Publication: CIM Bulletin
Author(s): S.A. ARGYROPOULOS, R.I.L. GUTHRIE, K. ANANTHANARAYANAN
Keywords: Computers, Microprocessors, Process metallurgy, Dissolution kinetics, Steel baths, Castings.
Issue: 820
Volume: 73
Year: 1980
Text
Summary: margin of the late Triassic Guichon Creek batholith in south-central British Columbia. Host to the ore are sedimentary and volcanic rocks of the western calc-alkaline belt of the Upper Triassic Nicola Group. In the mine area, the Nicola Group rocks are a stratigraphically complex sequence, at least 1800 feet thick, which have been subdivided into Basalt, Rhyolite, Carbonate and Clastic Sediment units. All the units strike and dip parallel to the margin of the Guichon Creek batholith and are...
Publication: CIM Bulletin
Author(s): GREGG W. MORRISON
Keywords: Stratigraphy, Copper, Iron, Skarn, Craigmont mine, Nicola Group, Guichon Creek batholith, Contact aureoles.
Issue: 820
Volume: 73
Year: 1980
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