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Dynamic vapor sorption measurement and identification of mineral species in industrial-scale flotation cell samples
Boliden Mineral, Sweden.
Boliden Mineral, Sweden.
Boliden Mineral, Sweden.
Luleå University of Technology, Sweden.
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2019 (English)In: Powder Technology, ISSN 0032-5910, E-ISSN 1873-328X, Vol. 356, p. 1016-1023Article in journal (Refereed) Published
Abstract [en]

In order to understand flotation performance in industrial-scale, it is of relevance to understand the surface properties and mineral species of materials contained in the various parts of the cell. In this work XRPD X-Ray Powder Diffraction) and DVS (Dynamic Vapor Sorption) were used to characterise the different minerals and the wettability of the sample collected at different depths in an industrial scale flotation cell. DVS is a novel technique for wettability measurement in mineral processing, of higher robustness and reproducibility compared to the Washburn technique. In the turbulent zone of the cell, the wettability properties are relatively similar, and decreases in the froth and concentrate. Differences in radial position were only found near the froth phase close to the shaft of the agitator. The main finding was that wettability information obtained by DVS could be correlated with mineral composition and particle size distribution.

Place, publisher, year, edition, pages
Elsevier B.V. , 2019. Vol. 356, p. 1016-1023
Keywords [en]
Dynamic vapor sorption, Froth flotation, Industrial scale, Mineral processing, Wettability, Cells, Cytology, Minerals, Particle size, Particle size analysis, Sorption, Wetting, X ray powder diffraction, Flotation performance, Mineral composition, Novel techniques, Reproducibilities, Wettability measurements, mineral, Article, chemical analysis, chemical composition, concentration (parameter), controlled study, flotation, process technology, reproducibility, surface property, Washburn technique
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Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-40921DOI: 10.1016/j.powtec.2019.08.063Scopus ID: 2-s2.0-85073103391OAI: oai:DiVA.org:ri-40921DiVA, id: diva2:1376758
Note

Funding details: VINNOVA, 2014-01943; Funding details: VINNOVA; Funding text 1: The authors wish to acknowledge Boliden Mineral and RISE for permission to publish this paper as well as VINNOVA, the Swedish Governmental Agency for Innovation Systems for financial support, grant number 2014-01943 .

Available from: 2019-12-10 Created: 2019-12-10 Last updated: 2019-12-10Bibliographically approved

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