An overview of coal activities at the Canadian Combustion Research Laboratory

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Sommaire: This paper will examine the role of debt and equity in project financing and will illustrate the impact on the return to the project sponsor of each type. Conventional debt sources will be examined, as will product purchaser advances, foreign export-import bank loans and lease financing. The paper will review guarantees, charges against the project, dividend restrictions and other commitments. It will also discuss various features of sales contracts and the degree to which they can assist in...
Publication: CIM Bulletin
Auteur(s): R.R. STONE
Mots clés: Mineral economics, Financial options, Mine design, Debt, Equity, Leasing, Project financing.
Numéro: 822
Volume: 73
Année: 1980
Texte
Sommaire: This paper presents a summary compilation of current Canadian coal research projects in the areas of exploration, mining and preparation. The compilation forms the basis for a review of present operations and technology, and of current research efforts. General research areas, requirements and priorities are suggested along with a discussion on achieving the research goals in terms of funds, facilities and staff. The current level of research funding in these areas is assessed.
Publication: CIM Bulletin
Auteur(s): DAVID A. FAWCETT
Mots clés: Geology, Geophysical exploration, Gravity surveys, Reefs, Pinnacle reefs, Seismographs.
Numéro: 822
Volume: 73
Année: 1980
Texte
Sommaire: Coal from Hat Creek, B.C., has been successfully beneflciated to remove ash while retaining calorific value by a dry electrostatic separation process using a fluidized bed for triboelec-trification. Two samples of Hat Creek coal used in the beneficiation experiments have been characterized particularly with respect to their mineral and clay content. The calorific value recovery exceeds the simple dry coal recovery because of the heat lost in altering the clay minerals of the ash fraction...
Publication: CIM Bulletin
Auteur(s): I.I. INCULET, R.M. QUIGLEY, M.A. BERGOUGNOU, J.D. BROWN
Mots clés: Coal treatment, Electrostatic beneficiation, Hat Creek deposit, Triboelectrification, Fluidized beds, Separation towers.
Numéro: 822
Volume: 73
Année: 1980
Texte
Sommaire: Australia has almost twenty per cent of the Western World's low-cost uranium reserves, located mostly in the Alligator Rivers region of the Northern Territory. At present, only one uranium mill is operating in Australia, but a number of new mills are planned for the early 1980s.Details are given of Australian uranium mining and milling proposals and the measures taken to minimize their environmental impact. Major factors affecting environmental impact are discussed, including treatment of...
Publication: CIM Bulletin
Auteur(s): DESMOND M. LEVINS
Mots clés: Uranium, Australia, Environmental control, Mary Kathleen mine, Ranger deposit, Nabarlek deposit, Yeelirrie deposit, Jabiluka deposit, Water management, Tailings, Alligator River ores.
Numéro: 822
Volume: 73
Année: 1980
Texte
Sommaire: The Lake George antimony deposit comprises a system of stibnite-bearing quartz veins that cut Silurian greywacke and slate. The stibnite-bearing ore zone is in part enveloped by a uraniferous zone.The ore-bearing quartz vein system occupies an easterly striking, gently north-dipping fracture system that cuts across north-northeasterly trending gently southwest-plunging, tight Acadian (early Middle Devonian) folds. This vein system continues at depth into a siliceous skarn zone intruded by...
Publication: CIM Bulletin
Auteur(s): C.J. MORRISSY
Mots clés: Geology, Mineral deposits, Antimony deposits, Lake George deposit, New Brunswick, Stibnite, Uranium minerals.
Numéro: 822
Volume: 73
Année: 1980
Texte
Sommaire: Removal of radium from uranium tailings would substantially lessen their environmental impact because it would eliminate, or greatly reduce, the hazards arising from radon emanation, leaching of radium, dust dispersal and gamma radiation. A process is described to extract radium from tailings by leaching in 3M NaCl solution. The radium can be rapidly leached at ambient temperatures by either multi-stage contact in agitated vessels or washing on a tailings filter cake. Extraction efficiencies...
Publication: CIM Bulletin
Auteur(s): REGINALD K. RYAN, DESMOND M. LEVINS
Mots clés: Uranium, Australia, Hydrometallurgy, Radium, Tailings, Environmental control, Leaching, Ion exchange.
Numéro: 822
Volume: 73
Année: 1980
Texte
Sommaire: Gravity profiles were established over five known Middle Silurian pinnacle reefs in Lambton County, southwestern Ontario. The profiles were approximately 3 km long, with stations every 60 m. Four fairly recent technological developments were used which now make the gravity method relatively efficient and inexpensive compared to the techniques available two decades ago. These are: (1) a LaCoste-Romberg model G gravimeter to measure the gravitational attraction with a sensitivity of 0.01 mgal;...
Publication: CIM Bulletin
Auteur(s): M.M. KAPNISTOS, D.T.A. SYMONS
Mots clés: Geology, Geophysical exploration, Gravity surveys, Reefs, Pinnacle reefs, Seismographs.
Numéro: 822
Volume: 73
Année: 1980
Texte
Sommaire: In carrying out a geotechnical survey of a proposed gas pipeline route from the Arctic Islands south to Longlac, Ontario, the Polar Gas Consortium contracted the drilling of several hundred 2- to 20-m-deep boreholes in drift and bedrock. Samples from these holes were made available to the Geological Survey of Canada, where they were subjected to stratigraphic and trace-element geochemical analyses. The geochemical characteristics of the clay and sand-sized heavy mineral fractions of till...
Publication: CIM Bulletin
Auteur(s): WILLIAM W. SHILTS
Mots clés: Geochemistry, Till profiles, Polar Gas Consortium, Mineral exploration, Glacial deposits.
Numéro: 822
Volume: 73
Année: 1980
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