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Influence of different gases in flotation of sulphide minerals
Luleå University of Technology.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
1989 (English)In: Advances in Coal and Mineral Processing Using Flotation: Proceedings of an Engineering Foundation Conference / [ed] Subhash Chander; Richard R. Klimpel, Littleton, Colo: Society for Mining, Metalurgy and Exploration, 1989, p. 71-76Conference paper, Published paper (Refereed)
Abstract [en]

Sulfide mineral flotation is known to be affected by oxidation-reduction conditions in the pulp, although there is some doubt as to whether it is the oxidizing environment or the type of oxidant which influences flotation. Variations in the oxidizing conditions of the pulp and their subsequent effect on flotation were examined for two types of natural sulphide ore, a galena-sphalerite ore and a complex pyrite ore. Different gas mixtures ranging from pure nitrogen to pure oxygen were used to control the oxidizing conditions. Zinc recovery increased with a more oxidizing environment, and nitrogen gas acted almost as a depressant for sphalerite in the flotation of the Pb-Zn ore. For the complex pyrite ore, the selectivity between chalcopyrite and both gangue and pyrite improved when the environment was oxidizing, resulting in higher Cu recovery in the copper rougher concentrate.

Place, publisher, year, edition, pages
Littleton, Colo: Society for Mining, Metalurgy and Exploration, 1989. p. 71-76
National Category
Metallurgy and Metallic Materials
Research subject
Mineral Processing
Identifiers
URN: urn:nbn:se:ltu:diva-30807Scopus ID: 24942428Local ID: 4c257430-afc6-11db-8a07-000ea68e967bISBN: 0-87335-087-1 (print)OAI: oai:DiVA.org:ltu-30807DiVA, id: diva2:1004036
Conference
Engineering Foundation Conference : 03/12/1989 - 08/12/1989
Note
Godkänd; 1989; 20070129 (pafi)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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Forssberg, Eric

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
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  • nn-NB
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Output format
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