The dynamics of leaching Sanggenon from Sangbaipi was studied
and the dynamic model describing leaching process
accounting to non-linear isotherm
was developed. The equilibrium equations of Sanggenon C and D between Sangbaipi and acetone
the intrapartical diffusion coefficient and the mass transfer coefficient in liquid film were obtained. The correlationships between the mass transfer coefficient in liquid film and the velocity were developed. The result that the dynamic curves calculated by the model were agreement with the experimental curves showed that the model can well express leaching process.