In situ acid leaching of copper tailings deposits: A case history

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Sommaire: No abstract is available for this paper
Publication: CIM Bulletin
Auteur(s): R. Levac, R.A. McIvor
Numéro: 1056
Volume: 94
Année: 2001
Texte
Sommaire: During the operation of a mineral processing plant, the unit processes are investigated by analyzing the data extracted by means of stream sampling. The data structure is identical to the time series form. Data analysis is a crucial step in understanding the plant performance. To control the plant performance efficiently, it is very important to avoid sampling errors, which is impossible. However, it is possible to minimize these errors. The factors influencing these errors are divided into...
Publication: CIM Bulletin
Auteur(s): C. Ketata, M.C. Rockwell
Numéro: 1056
Volume: 94
Année: 2001
Texte
Sommaire: Tailings from the nickel refinery in Copper Cliff, Ontario, consist of fine silicates mixed with a variable amount of conductive and magnetic minerals mainly associated with sulphides and iron oxides. Subsequent oxidation of sulphide-rich phases within the tailings results in the formation of an acidic leachate that may contain significant concentrations of trace metals. Mapping the spatial distribution of regions of higher sulphide concentration therefore provides insight into the distributi...
Publication: CIM Bulletin
Auteur(s): J. Shang,B. Morris, P. Howarth
Numéro: 1056
Volume: 94
Année: 2001
Texte
Sommaire: Sulphide concentrates may exhibit self-heating to various degrees during storage or shipping, the worst cases presenting a serious hazard from fire and SO2 emission. Based on measurements of heating rates on a wide variety of concentrate samples in a special apparatus, combined with field experience, a methodology has been developed which allows concentrates to be rated for their heating potential. This has proven to be very useful in practice, for example, in deciding on the need to take...
Publication: CIM Bulletin
Auteur(s): F. Rosenblum, J. Nesset, P. Spira
Numéro: 1056
Volume: 94
Année: 2001
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