Robust design for changing hydrodynamic conditions
In extraction with high mass transfer and/or changing physical properties, this is the column of choice. The geometry of the agitated compartments can be adapted for changing hydrodynamic conditions. Other main features are special mixing turbines and perforated partition plates.
In general, liquid-liquid extraction is applied where alternative separation technologies such as distillation are uneconomical, or even unsuitable. Our portfolio includes a complete range of liquid-liquid extraction equipment, enabling us to provide you with the most appropriate solution for your requirements. In addition to agitated columns, it includes mixer-settlers and packed columns.
Design
Our portfolio includes a complete range of liquid-liquid-extraction equipment, enabling us to provide you with the most appropriate solution for your requirements. In addition to agitated columns, it includes mixer-settlers and packed columns.
The agitated Kühni column has a simple and robust design. The drive unit and the shaft are supported at the top of the column, allowing you to use all common types of shaft seals (stuffing box, mechanical seals). In special cases, the seal can be replaced by a magnetic drive. Only radial slide-bearings are necessary inside the column, which are accessible through hand or man holes. The sturdy design, the selected materials, and the low rotational speed of industrial columns (typically 10-100 rpm) allow a practically maintenance-free operation.
