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Use of surface complexation models in sulphide mineral flotation
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
Luleå tekniska universitet.
1997 (English)In: International Journal of Mineral Processing, ISSN 0301-7516, E-ISSN 1879-3525, Vol. 51, no 1-4, p. 81-95Article in journal (Refereed) Published
Abstract [en]

Surface complexation modelling is introduced to investigate the surface reactions in a mixed galena and sphalerite flotation system. Computer-assisted calculations based on surface complexation modelling (SCM) are performed to obtain the mineral surface distribution of ethyl xanthate as well as carbonate and excess sulphide ions as a function of pH. The significance of pe is demonstrated by computing the mineral surface speciation in a flotation system with xanthate and excess of sulphide ions. The results are used to evaluate the influences of pH, pe, the concentration of xanthate, sulphide or carbonate ions to the mineral flotability. The flotation mechanisms in galena-sphalerite system are discussed based on SCM.

Place, publisher, year, edition, pages
1997. Vol. 51, no 1-4, p. 81-95
National Category
Physical Chemistry
Research subject
Chemistry of Interfaces
Identifiers
URN: urn:nbn:se:ltu:diva-5471DOI: 10.1016/S0301-7516(97)00020-3Local ID: 39520e60-ff14-11dc-8b65-000ea68e967bOAI: oai:DiVA.org:ltu-5471DiVA: diva2:978345
Note
Godkänd; 1997; 20080331 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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