Mass transfer from shrinking droplets, micromixing and chemical reactions in the rotor-stator mixer

Jerzy Robert Bałdyga , Michał Kotowicz

Abstract

A fast mass transfer of a solute from droplets shrinking due to fast dissolution of an organic solvent dispersed in the continuous aqueous phase is considered. The dispersed organic phase contains p-Toluenesulfonic acid (pTsOH) dissolved in diisopropyl ether, whereas the continuous phase is represented by the aqueous solution of sodium hydroxide, 2,2-dimetoxypropane (DMP) and ethanol. A new method of modeling proposed in this paper is based on combination of the mass transfer model in the liquid-liquid system with the engulfment model of micromixing (E-model). The model is used to describe the new system of test reactions, in which the product distribution of two competitive parallel reactions (neutralization of the acid and its catalytic action in hydrolyzing DMP). Experiments are carried out in the T 50 Ultra-Turrax® - IKA rotor-stator device. The results show that the test reactions can be used to identify the efficiency of mixing.
Author Jerzy Robert Bałdyga (FCPE / DCRED)
Jerzy Robert Bałdyga,,
- Department of Chemical Reactor Engineering and Dynamics
, Michał Kotowicz (FCPE / DCRED)
Michał Kotowicz,,
- Department of Chemical Reactor Engineering and Dynamics
Pages75-84
Publication size in sheets0.5
Book The 22nd Polish Conference of Chemical and Process Engineering: Proceedings, 2016, Faculty of Process and Environmental Engineering, ISBN 978-83-61997-75-7, 1584 p.
Proceedings OKIChiP 2016.pdf / No licence information (file archived - login or check accessibility on faculty)
Keywords in Englishmicromixing, mass transfer, rotor-stator
Languageen angielski
Score (nominal)0
Publication indicators WoS Citations = 1
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