The multiple counter-current process: several mixer-settlers are installed with mixing and settling chambers located at alternate ends.

The mixer-settler

A typical mixer-settler consists of a continuously operating mixing zone and a continuously operating settling zone, separated by a weir to prevent reflux mixing. Mixer and stabilizer can be more or less designed separately. The mixing processes for heavy phase 1 and light phase 2 are adjustable by selecting the agitator, its speed and flow rate.

• 1a Heavy phase entry - very often aqueous feed
• 1b Heavy phase output - very often aqueous raffinate
• 2a Light phase entry - very often organic solvent
• 2b Light phase release - very often organic extract

In a multiple counter-current process, several mixer-settlers are installed with mixing and settling chambers located at alternate ends for each stage (since the outlet of the settling sections feeds the inlets of the mixing sections of the stage. adjacent).

Consult the TECHNICAL SHEET OF MP1032