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Mass Transfer Study of a Batch Aluminum Degassing Ladle with Multiple Designs of Rotating Impellers

“…These are the two principal kinetic parameters of the gas-liquid interaction for degassing, being functions of the local fluid flow pattern, turbulent dispersion, and gas holdup distribution in the vessel, although the whole process is also influenced by the rotor-injector impeller design. 3,4 Saternus et al 5,6 studied the gas bubble dispersion and mixing characteristics with different impeller designs using physical modeling and remarked on the importance of testing impeller designs in the laboratory before industrial testing. Several experimental studies that are useful to obtain fit correlations based on mass balances, process characteristics, and geometrical configurations to determine the global k L a in similar stirred systems can be found in literature.…”