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Physical and Mathematical Models of Target Component Extraction from Rectlinear Capillaries

Jaroslav Gumnitsky1, Lubov Venger1, Vira Sabadash1, Dmytro Symak1, Anna Hyvlud1, Zoriana Gnativ1
Affiliation: 
1 Lviv Polytechnic National University 12, S.Bandery St., 79013 Lviv, Ukraine virasabadash@gmail.com
DOI: 
https://doi.org/10.23939/chcht16.01.112
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Keywords:

Abstract: 
The extraction of the solid component from the rectilinear capillary has been investigated. The presence of two extraction zones (convective and molecular diffusion) was confirmed. The effect of the system vacuumizing on the extraction rate has been studied. The convection zone during vacuumizing was found to be increased due to the appearance of the vapor phase bubbles. The mass transfer coefficients for the convective zone have been determined. A mathematical model of the molecular diffusion stage is given, taking into account the nonlinear change in the component concentration in the liquid due to the displacement of the extraction boundary. The molecular diffusion coefficients in the capillary have been determined.
References: 

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