Mass Transfer Regimes in Mechanically Agitated Solid-Liquid Systems

1 Mass Transfer Regimes in Mechanically Agitated Solid-Liquid Systems 

In solid-liquid mass transfer processes, the rate-controlling steps are  

Diffusion in the liquid film surrounding the solid particles (film diffusion) 

Diffusion within the particles—in pores or through the solid phase itself (particle diffusion), as in ion exchange 

Chemical reaction at the surface of the particle (surface reaction) 

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