Abstract
The mass transfer data measured in the liquid fluidized beds of ion exchange resins in the Reynolds number range 0.22–6.4 are presented. A comparison was made between the experimental results and the values predicted by the recent theory of Nelson and Galloway and by the modified theory proposed by Rowe. The observed change of exponent on Reynolds number is predicted by the theory of Nelson and Galloway, but this theory fails to predict the correct dependance of Sherwood number of voidage. The modified theory proposed by Rowe predicts successfully the mass transfer coefficients at very low Reynolds number and in addition it predicts also approximately the Reynolds number region in which the change of exponent on Reynolds number is observed, but it fails to predict the correct dependance of Sherwood number on voidage in this region.
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