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Flow characterization of a flotation column
Author(s) -
Pal Rajinder,
Masliyah Jacob
Publication year - 1989
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450670608
Subject(s) - flux (metallurgy) , column (typography) , bubble , froth flotation , flow (mathematics) , pulmonary surfactant , mechanics , aqueous solution , chemistry , chromatography , materials science , thermodynamics , physics , geometry , mathematics , organic chemistry , connection (principal bundle)
The 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. The ratio of the gas drift‐flux, j gf , to the bubble terminal velocity, V , for both the bubbly and the froth zones was found to be well correlated by the Richardson–Zaki equation:\documentclass{article}\pagestyle{empty}\begin{document}$$ \frac{{j_{gf} }}{{V_\infty }} = \alpha _g \left( {1 - \alpha _g } \right)^{2.39} $$\end{document}