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Spatial Variations of Pulp Properties in Flotation: Implications for Optimizing Cell Design and Performance
Boliden Mineral Ab.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Mineralteknik och metallurgi.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Mineralteknik och metallurgi.
Boliden Mineral Ab.
Rekke forfattare: 42016 (engelsk)Inngår i: Proceedings of International Mineral Processing Congress, Quebec, Canada, ISBN, 2016Konferansepaper, Publicerat paper (Fagfellevurdert)
sted, utgiver, år, opplag, sider
2016.
HSV kategori
Forskningsprogram
Processmetallurgi
Identifikatorer
URN: urn:nbn:se:ltu:diva-60109ISBN: 978-1-926872-29-2 (tryckt)OAI: oai:DiVA.org:ltu-60109DiVA, id: diva2:1044231
Konferanse
XXVIII International Mineral Processing Congress, Québec City, September 11-15 2016
Tilgjengelig fra: 2016-11-02 Laget: 2016-11-02 Sist oppdatert: 2019-02-08bibliografisk kontrollert
Inngår i avhandling
1. Sampling from large flotation cells: An invastigation of spatial distribution
Åpne denne publikasjonen i ny fane eller vindu >>Sampling from large flotation cells: An invastigation of spatial distribution
2019 (engelsk)Licentiatavhandling, med artikler (Annet vitenskapelig)
Abstract [en]

The general trend in flotation technology today is towards larger flotation cells, which enables a higher throughput. However, adverse effects such as segregation and reduced froth transport efficiency have also been observed in larger cells. To better understand these problems it is of relevance to understand how the minerals of interest are moving and distributed inside flotation cells.

A sampling investigation of industrial scale tank cells has been carried out. The samples have been analyzed by their physical properties, such as grade, solid concentration, particle size distribution and mineral composition. A novel method of measuring the wettability has been validated against traditional techniques for characterizing the surface properties of mineral samples. Different techniques and devices for sampling has also been evaluated.

The results showed segregation inside the cells, with the quiescent zone having lower particle size (P80) and lower weight % solid. The grade profile in the vertical direction was relatively constant even though the P80 and weight % solid decreased in the quiescent zone.

The smaller particles in the quiescent zone contained higher fraction of soft clay particles, which also correlated with a higher degree of hydrophilicity.

sted, utgiver, år, opplag, sider
Luleå: Luleå University of Technology, 2019. s. 86
Serie
Licentiate thesis / Luleå University of Technology, ISSN 1402-1757
Emneord
Flotation, sampling
HSV kategori
Forskningsprogram
Mineralteknik
Identifikatorer
urn:nbn:se:ltu:diva-72794 (URN)978-91-7790-314-7 (ISBN)978-91-7790-315-4 (ISBN)
Presentation
2019-04-05, F531, Luleå tekniska universitet, Luleå, 10:00 (engelsk)
Opponent
Veileder
Forskningsfinansiär
VinnovaVinnova
Tilgjengelig fra: 2019-02-11 Laget: 2019-02-08 Sist oppdatert: 2019-03-19bibliografisk kontrollert

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Totalt: 321 treff
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