Analysis of Microphase Action

Using the pseudohomogeneous model (surprisingly upheld by a number of experiments) as the fundamental basis, we list here some commonly used 

Because the holdup of the microphase in the continuous phase is very low, a requirement for the pseudohomogeneous model, the macrointerface—or the interface between the two major phases—is assumed to be physically undisturbed by the presence of the microphase. 

Although the microparticles circulate in the fluid bulk as a result of external agitation, it is assumed that the particles contained in the fluid elements in transient contact with the interface remain stationary. Thus it is possible to assume a Sherwood number of 2, a generally accepted value for mass transfer to and from a spherical particle in an infinite medium. 

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Figure 23.5 The mass transfer coefficients involved in the analysis of microphase action...

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