Gas dispersion measurements in industrial flotation cells

Schwarz, S. and Alexander, D. (2006) Gas dispersion measurements in industrial flotation cells. Minerals Engineering, 19 6-8: 554-560. doi:10.1016/j.mineng.2005.09.022


Author Schwarz, S.
Alexander, D.
Title Gas dispersion measurements in industrial flotation cells
Journal name Minerals Engineering   Check publisher's open access policy
ISSN 0892-6875
1872-9444
Publication date 2006-05-01
Sub-type Article (original research)
DOI 10.1016/j.mineng.2005.09.022
Volume 19
Issue 6-8
Start page 554
End page 560
Total pages 7
Editor B. A. Wills
Graeme J. Jameson
Place of publication Oxford, United Kingdom
Publisher Pergamon
Collection year 2006
Language eng
Subject 290702 Mineral Processing
640300 First Stage Treatment of Ores and Minerals
Abstract For nearly 100 years, the flotation plant metallurgist has often wondered what is happening 'beneath the froth'. To assist in unravelling this mystery, new technology has been developed as part of the Australian Mineral Industries Research Association (AMIRA) P9 project, to measure gas dispersion characteristics (such as gas hold-up, superficial gas velocity and bubble size) in industrial flotation cells. These measurements have been conducted in a large number of cells of different types and sizes by researchers from the Julius Kruttschnitt Mineral Research Centre (JKMRC) and JKTech. A large database has been developed and the contents of this database are described in this paper. Typical cell characterization measurements show a wide spread in values, even in the same cell types and sizes performing similar duties. In conventional flotation cells, the typical gas hold-up values range from 3% to 20%, bubble sizes range between I and 2 mm, and superficial gas velocity ranges from 1 to 2.5 cm/s. The ranges of cell characterization measurements given in this paper will enable plant personnel to compare their operation to other similar types of operations from around Australia and the rest of the world, giving opportunities for further improvement to flotation plant operations. (C) 2005 Elsevier Ltd. All rights reserved.
Keyword Engineering, Chemical
Mineralogy
Mining & Mineral Processing
Froth Flotation
Flotation Machines
Flotation Bubbles
Air-flow Rate
Surface-area Flux
Impeller Speed
Machines
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes "Selected papers from the Centenary of Flotation Symposium, 5–9 June 2005, Brisbane, Australia "

Document type: Journal Article
Sub-type: Article (original research)
Collections: Julius Kruttschnitt Mineral Research Centre Publications
2007 Higher Education Research Data Collection
 
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Created: Wed, 15 Aug 2007, 17:59:12 EST