Mixing miscible liquids together is an operation carried out by stirring in order to obtain a homogeneous solution which then represents only one phase.
This process is usually carried out in a tank equipped with a stirrer or a static mixer. Two or more liquids are said to be miscible when they form a homogeneous mixture after the agitation operation.
The simple movement of the stirrer or a low speed of the agitator may sometimes be sufficient to obtain and maintain a homogeneous solution when the liquids used are highly miscible with each other or of similar viscosity.
Agitators are equipped with propellers or anchors selected according to the miscibility of the liquids or products used or when a low level of shear is sufficient to carry out the operation of h homogenizing the mixture for the intended application.
It should be noted that in the turbulent flow zone, the time required to obtain a homogeneous mixture is directly related to the pumping capacity of the stirrer.
The use of static mixers, thanks to the specific shapes of its modules, will accentuate the mixing process and allow highly efficient homogenization operations to be carried out continuously and without interruption.
These techniques for mixing miscible liquids by agitation are used daily in many industrial sectors, particularly in the chemical, pharmaceutical, cosmetic and food processing industries.