Abstract
The paper describes a mathematical model of mass transfer processes in a cascade of reverse-flow centrifugal extractors. Model of operation of each extractor is given as tightly coupled system of mixing and separating chambers. All model units are represented by systems of differential equations. The article presents the results of testing of the developed model, which confirmed the validity of the assumptions made in the model. The authors assessed the impact of the overflow of dense phase level on the hydrostatic position of phase interface level in the extractor. The research showed that a change in the volume of dense and light phases occurs in each apparatus of a cascade even in the steady mode. Operation of the cascade consisting of 12 series-connected centrifugal extractors was simulated in order to verify the model. Computer simulation results confirm the adequacy of the developed model.
Highlights
There are various methods of chemical treatment, but extraction technologies are the most widespread because of their efficiency
Centrifugal extractors have been introduced into the technological process instead of column extractors
We conducted analysis of technological process, on the basis of which we identified the main parameters influencing the process of mass transfer both in the extractor, and in the cascade
Summary
E P Zelenetskaya A G Goryunov and N V Daneikina2 1Department of Electronics and Automation of Nuclear Pants, Institute of Physics and Technology, National Research Tomsk Polytechnic University, 2 Lenin Avenue, Tomsk 634050, Russia 2Department of Foreign Languages for Specialists in Physics and Technology, Institute of Physics and Technology, National Research Tomsk Polytechnic University, 2 Lenin Avenue, Tomsk 634050, Russia
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