Mixer–Settler Liquid–Liquid Extraction Unit

A typical mixer-settler comprises a continuous-operation mixing zone and a continuous-operation settling zone, separated by a weir to prevent back-mixing. Learning Objectives: Study of experimental parameters: influence of heavy- and light-phase flow rates on the system; influence of agitation. Calculations: Mass balance. Learn about Mixer–Settler Liquid–Liquid Extraction Unit equipment for optimal educational outcomes.. Determination of optimum operating conditions. Determination of column efficiency. Learn about Mixer–Settler Liquid–Liquid Extraction Unit price for optimal educational outcomes..

The mixer and the settler can be designed more or less separately. The mixing process for heavy phase 1 and light phase 2 is adjustable by selecting the agitator, its speed, and the flow rate.

Heavy-phase inlet (typically aqueous feed).
Heavy-phase outlet (typically aqueous raffinate).
Light-phase inlet (typically organic solvent).
Light-phase outlet (typically organic extract).
Support frame in 304L stainless steel tubing with aluminium fittings.
2 x 10 L polyethylene carboys for heavy- and light-phase feed.
2 x 10 L polyethylene carboys for heavy- and light-phase raffinate collection.
3 peristaltic pumps with variable flow rate 0–9 L/h.
2 variable-speed agitation motors with turbines.
2 horizontal dismountable borosilicate glass decanters, each with an agitation zone with overflow and a settling zone with heavy- and light-phase sampling ports.
2 Pt100 temperature probes in the agitation zone with display.
Electrical cabinet with emergency stop.