JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Online ISSN : 1881-1299
Print ISSN : 0021-9592
Measurement of Continuous-Phase Mass Transfer Coefficient at Droplet Surface in Liquid-Liquid Mixing Vessel by Chemical Reaction Method
Setsuro HiraokaIkuho YamadaYutaka TadaHideki MoriNaoki NaritaHiyori SuzukiTsutomu AragakiYoung Tae Park
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1990 年 23 巻 2 号 p. 166-170

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The continuous-phase mass transfer volumetric coefficient kLa in a liquid-liquid mixing vessel was measured by using the hydrolysis reaction of both n-amyl and n-hexyl acetates with sodium hydroxide. Droplet diameter was also observed by using a videorecorder via a microscope during the reaction period, allowing the continuous-phase mass transfer coefficient, kL, to be determined. The coefficient obtained was 2–5 times larger than that obtained from the correlation by Calderbank–MooYoung. Dimensionless correlation of the mass transfer coefficient with the droplet diameter and the power input per unit volume was confirmed experimentally to be close to that for the solid suspension system.
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© 1990 The Society of Chemical Engineers, Japan
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