Recycled membrane extraction in multipass rectangular modules with modified correction-factor analysis

The modified correction-factor analysis for recycled membrane extraction in parallel-flow multipass rectangular devices is introduced in this study. The mass-transfer rate expression and modified correction-factor charts are explicitly derived. Unlike conventional correction-factor analysis, the results can be readily calculated without using trial-and-error methods. The correction factors for recycled multipass operations are plotted in the modified correction-factor charts, as function of the flow rate, mass-transfer-area, distribution coefficient and overall mass-transfer coefficient. The experimental results confirm the predicted values for acetic acid extraction from aqueous solution using methyl isobutyl ketone in the double-pass device.