2. Example of calculations for liquid-liquid agitation systems

The creation of a liquid-liquid emulsion in a mechanically agitated tank is facilitated by the use of a radial-type agitator, which induces high shear within the liquid phase, but also good circulation of the phases within the tank to maintain the emulsion and avoid coalescence of the drops . The most commonly used agitators include radial turbines with or without discs (e.g. the Ruhston turbine), and rotor-stators (coupled to an agitator to create circulation). Sometimes, turbines with inclined blades or propellers can be used, but the choice will depend on the size of the drops to be obtained. Table 6 shows the type of...