平膜含浸型液膜装置における物質移動係数

概要

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The individual mass transfer coefficients in a flat-sheet supported liquid membrane were measured by experiments of iodine transfer from I2-KI aqueous solution in one channel into n-Heptane or Na2S2O3 aqueous solution in the other channel through the membrane. The mass transfer coefficient for the aqueous boundary film was given by an expression analogous to that for flow parallel to flat plates. While the mass transfer coefficient for the liquid membrane was about one-fifth of that calculated in terms of the thickness and porosity of the membrane sheets used, it increased when the membrane solution was forced to flow with aqueous solution in one channel as two-phase flow. This suggests that the membrane solution in the porous sheet may move through the pores for the case of two-phase flow in one channel.
社団法人化学工学会の論文