Journal article

Axial Dispersion in a Pulsed and Nonpulsed Disc and Doughnut Solvent Extraction Column

Yong Wang, Heng Yi, Kathryn H Smith, Kathryn A Mumford, Geoffrey W Stevens

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | AMER CHEMICAL SOC | Published : 2017

Abstract

In solvent extraction columns mechanical agitation is usually introduced to improve the extraction efficiency. However, some industrial columns have been found to have higher extraction efficiency while running with no pulsation. In this study, axial dispersion coefficients in the continuous phase were measured under pulsing and nonpulsing conditions using a 72.5 mm diameter disc and doughnut solvent extraction column. The axial dispersion coefficients were measured using the unsteady tracer injection method. Under nonpulsing conditions, the axial dispersion coefficient increased with increasing continuous phase velocity, but it did not change significantly with the increase of the dispersed..

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Grants

Awarded by Australian Research Council through Linkage


Funding Acknowledgements

The authors would like to acknowledge the funding provide by the Australian Research Council through Linkage Grant LP130100305 and BHP Billiton, Olympic Dam, for this project, and would also like to thank the Particulate Fluids Processing Centre for the resources provided for this project.