Results 211 to 220 of about 5,332 (264)

Flow characterization of a flotation column

The Canadian Journal of Chemical Engineering, 1989
AbstractThe flow characteristics of a froth flotation column have been experimentally studied using air and aqueous surfactant solutions without the presence of solids. The hold‐up behaviours of the bubbly and the froth zones of the column were linked together using the drift‐flux model.
Rajinder Pal, Jacob Masliyah
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Dynamic model of a flotation column

Minerals Engineering, 2000
A linear multivariable model for a flotation column is derived from process analysis and experimental data. The data have been taken from a pilot-scale column (height 720 cm; diameter 5.1 cm) with all necessary instrumentation installed. The flotation column was operated in a water-air system.
M.A.M Persechini, F.G Jota, A.E.C Peres
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Developments in the control of flotation columns

International Journal of Mineral Processing, 1988
Abstract The methods used currently for the control of flotation columns are summarised. The major deficiency of these methods is that they rely on inaccurate and indirect measurements of slurry-froth interface level and bias flowrate (the net downward flowrate of water through the froth phase).
M.H. Moys, J.A. Finch
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Column flotation of iron ore

Minerals Engineering, 1992
Abstract Iron ore producers have come under increasing pressure to reduce the silica content of their concentrates. Many companies are considering reverse froth flotation circuits as a means of achieving the required silica levels. Column flotation is being given serious consideration for this service due to the low capital and operating cost of the ...
I.M. Flint, H.E. Wyslouzil, V.L. de Lima Andrade, D.J. Murdock   +3 more
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Semi-batch flotation column

Minerals Engineering, 2012
Abstract A compact (75 cm ht × 7 cm dia.) semi-batch type flotation column was developed for use as a convenient testing and research apparatus especially in laboratories that do not have sufficient headroom for a full-size experimental column installation.
L.P. Gu, T. Yalcin
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Automatic Control of Flotation Columns

2010
Since their first commercial application for mineral separation in the early 1980s, flotation columns have become a standard piece of equipment in mineral concentrators particularly for cleaning operations. This chapter presents and discusses the most recent advances in instrumentation and automatic control of flotation columns.
René del Villar, André Desbiens, Miguel Maldonado, Jocelyn Bouchard   +3 more
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Arsenopyrite enrichment by column flotation

Minerals Engineering, 1993
Abstract Arsenic-rich, gold-bearing pyrite concentrates may be further enriched in arsenic to assist subsequent Au beneficiation. Among several amines tested in refloating a local Chalkidiki pyrite concentrate, 2-coco 2-methyl ammonium chloride proved successful by raising the grade from 9% to 22%, although total solids recovery was low. The use of a
P. Mavros, K.A. Kydros, K.A. Matis
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A fundamental flotation model and flotation column scale-up /

1984
This item was digitized as part of a project to share McGill's intellectual legacy with the public. If you are the copyright holder or a relative of the copyright holder who is deceased, you may request withdrawal by emailing escholarship.library@mcgill.ca.
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Comparison of Flotation Column and Mechanical Cell in Coal Flotation

2004
Flotation is universal method to fine coal processing. Selectivity and efficiency of flotation depends not only on surface characteristics of particles, but also on hydrodynamic condition in flotation cell. The goal of the research was to compare flotation column and conventional mechanical flotation cell in coal flotation. The tests was carried out in
Sobota, Ivan, Bedeković, Gordan, Salopek, Branko   +2 more
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Application of column flotation of coal

2005
The article discusses application of column flotation for flotation of coal.
Fečko, Peter, Riedlová, Silvie, BedekoviĆ, Gordan, Šafářová, Marcela   +3 more
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