Electrically enhanced mass transfer |
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| Institution: | 1. Department of Mechanical Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe, Hyogo 657-8501, Japan;2. Complex Fluid and Thermal Engineering Research Center, Kobe University, 1-1 Rokkodai, Nada, Kobe, Hyogo 657-8501, Japan |
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| Abstract: | The paper reviews the fundamentals and applications of electrically enhanced mass transfer processes in liquid/liquid systems. The factors which control the occurrence and creation of electrically charged droplets and electrostatic dipersions are described. The use of these effects for the enhancement of mass transfer rates in liquid/liquid extraction processes is reviewed and the major potential applications summarized. These include the application of enhanced extraction techniques to hydrometallurgical processes, antibiotic extraction and general chemical processing. A number of novel designs of electrically enhanced extractors available in the literature are appraised and compared with existing designs of extractor which rely upon mechanical techniques for improvement in efficiency. |
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