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Reactive Extraction of Lactic Acid in a Packed Column
Korean Journal of Chemical Engineering, May 1998, 15(3), 324-329(6), 10.1007/BF02707088
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Abstract
Reactive extraction of lactic acid was performed continuously in a packed column. The 0.6 M trioctylamine (TOA)/1-chlorobutane system was used as an extractant. The initial concentration of lactic acid was 10wt% based on fermentation results. Raschig rings (5 and 7 mm diameter) were used to measure hydrodynamic data. Disperse phase holdup was nearly constant at Vd<0.8Vd,f. It can be seen that the flooding data obtained from this study were consistent with the literature. NTU and HTU were calculated. NTU varied from 1 to 2 and HTU from 96 cm to 44 cm with variation of Vd. The overall mass transfer coefficients of the continuous phase were nearly constant to 8.98×10-5 mol/cm2s with variation of Vd.
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References
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