Carol pellet quality — a decade in review

Abstract Pellet quality has taken on a new dimension during the last ten years. Quality in the seventies was generally defined as adherence to certain physical and chemical specifications. Today, the talk is in terms of how the business is managed, how customer's expectations can be exceeded, not only in product quality, but in service responsiveness.
Coke breeze and flux additions, lower silica levels, and improved furnace control practices have all contributed to the improvement of pellet physical and metallurgical properties. Statistical process control has provided additional insight into the parameters that affect pellet quality.
Increased customer contact and product quality surveys have heightened our awareness of customer needs and also provide direction for quality improvement test work. Current work isfocussed on improving reducibility and understanding the relationshp between tumble, fired compression and metallurgical properties.
This paper will review the Iron Ore Company of Canada's efforts during the past decade and describe some of its initiatives for the future.
Keywords: Iron Ore Company of Canada, Pellet production, Metallurgy.
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Summary:  
Publication: CIM Bulletin
Author(s): J.S. Stachulak
Keywords: Mine ventilation, Ventilation systems, Air conditioning.
Issue: 950
Volume: 84
Year: 1991
Text
Publication: CIM Bulletin
Author(s): J.G. Peacey
Keywords: Non-ferrous pyrometallurgy, Pyrometallurgy, Noranda, Mineral process technology.
Issue: 950
Volume: 84
Year: 1991
Text
Publication: CIM Bulletin
Author(s): Robert Lee
Keywords: Pyrometallurgy, Ferrous pyrometallurgy, Canadian steel industry, Blast furnace, Electric smelting.
Issue: 950
Volume: 84
Year: 1991
Text
Summary: Review of prototype testing of two types of three-phase, argon-stabilized reactor/fun wee indicates specialized advantages for both, as compared with existing metallurgical furnace technology. They are: the direct-arc, plasma-torch furnace (Krupp); and the indirect, plasma extended-arc reactor (PEAR), developed at the University of Toronto.
Publication: CIM Bulletin
Author(s): W.G. Brown
Keywords: Metallurgy, Furnace technology, Plasma reactor furnaces, Plasma extended-arc reactor (PEAR), Plasma torch furnaces, Krupp Research Institute, Economics.
Issue: 950
Volume: 84
Year: 1991
Text
Summary: Minntac is a taconite mining, concentrating and pelletizing operation located near the town of Mountain Iron, Minnesota, U.S.A. It is totally owned and operated by USX Corporation and represents its largest source of domestic iron units. Minntac began producing fluxed pellets in 1988 and has produced both acid and fluxed pellets since then. This paper compares the acid and fluxed pellets produced at Minntac. It reviews modifications that have been made to the plant flowsheet and discusses...
Publication: CIM Bulletin
Author(s): Raymond D. Potts
Keywords: Metallurgy, Taconite mining, Pelletizing operations, Fluxed pellets, Pellet production.
Issue: 950
Volume: 84
Year: 1991
Text
Summary: The theory and practice of sampling of paniculate material have been the focus of a continued attention on the part of the mining industry worldwide for almost a century now, because of its critical importance at all phases of a mining project, from exploration (bulk sampling, assaying) to production (grade control) and marketing (quality control). A powerful, complete theory was put together by P. Gy (1968 to 1982), but its applications to gold ores have met with limited success to date, due...
Publication: CIM Bulletin
Author(s): D. Francois-Bongarcon
Keywords: Particulate gold ore, Sampling variance, Fundamental sampling error, Geostatistical microstructure, Nugget effect, Gold ores.
Issue: 950
Volume: 84
Year: 1991
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