Assessment of precious metals distribution in Lac Mattagami flotation plant by computer mass balance calculation

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Mots clés : Mineral Processing;Flotation;Lac Mattagami;Copper;Zinc;Bilmat;Mass balance calculation;Computer applications
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Sommaire: This article is based on a paper presented by Jim Scott at the 1988 annual convention of the Prospectors and Developers Association of Canada. The paper suggests a number of factors that might be taken into account in negotiating royalty terms.
Publication: CIM Bulletin
Auteur(s): ROBERT B. PARSONS
Numéro: 919
Volume: 81
Année: 1988
Texte
Sommaire: This paper discusses the importance of considering residence time distribution (RTD) in the design of flotation and mixing circuits and in the analysis of operating problems. The experiences and successes of Brunswick Mining in this area are covered and include: the development of a practical RTD measurement technique using pulp conductivity, baffle installation to improve the RTD of existing process equipment, and the method in which RTD considerations have been used to design the newest...
Publication: CIM Bulletin
Auteur(s): J.E. NESSET
Mots clés: Mineral processing, Flotation, Residence time distribution.
Numéro: 919
Volume: 81
Année: 1988
Texte
Sommaire: In recent years, computer based "expert systems" have been taking on large complex tasks for which no exact algorithmic solutions are feasible; tasks previously reserved for human experts requiring empirical knowledge, judgment, experience, developing a "best solution" by the use of plausible reasoning. Mining method selection is an appropriate area for the application of an expert system because extensive and detailed knowledge is required to make a "best"...
Publication: CIM Bulletin
Auteur(s): S. BANDOPADHYAY, P. VENKATASUBRAMANIAN
Mots clés: Computer applications, Mining method selection, Expert systems.
Numéro: 919
Volume: 81
Année: 1988
Texte
Sommaire: A four-inch compound water cyclone (CWC) was tested to evaluate its gold recovery characteristics when processing -4.8 mm run-or-pit, placer material. Neutron activated placer gold particles (840 to 37 microns) were used as radiotracers (198Au) in a closed circuit CWC test loop to determine concentrator recovery; a procedure believed unique to this study. The effect on gold recovery of gold size and shape, feed pulp density, feed pressure, vortex finder clearance (VFC), CWC cone type,...
Publication: CIM Bulletin
Auteur(s): DANIEL E. WALSH, P.O. RAO
Mots clés: Mineral processing, Compound water cyclone, Gold recovery, Placer gold, Concentrators, Beneficiation, Radiotracer.
Numéro: 919
Volume: 81
Année: 1988
Texte
Sommaire: Construction of the first stage of the tailings disposal facility for the Montana Tunnels Project was completed in October 1986. The project is located 37 km south of Helena, Montana, and involves mining of 42 million tons of weathered diatreme ore at a rate or 13 500 tpd to produce a gold/silver dore, as well as lead and zinc concentrates. The tailings disposal facility for the project includes a fully drained tailings impoundment for storage ofthe tailings solids, and a process water pond...
Publication: CIM Bulletin
Auteur(s): J.P. HAILE, K.J. BROUWER
Mots clés: Mineral processing, Tailings, Equipment design, Montana Tunnels Project.
Numéro: 919
Volume: 81
Année: 1988
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