A laboratory liquid / liquid extraction column designed for use with Kerosene (Paraffin) and Acetic acid.

A single valve sets the organic phase or the aqueous phase as the continuous phase as required for a particular exercise

Simple adjustment of lower phase boundary to compensate for variation in specific gravity of the organic phase

Sensors measure the temperature and conductivity of the aqueous phase before and after the extraction process allowing the concentration of acid to be determined and the extraction efficiency to be calculated

Includes PC software allowing data logging of measurements and calculation of acid concentration in the aqueous phase

Touch panel for control / calibration  of pumps and display of measurements

Designed to handle Kerosene with a thermostat to limit maximum operating temperature for safe operation

Pneumatic diaphragm pump used to minimise risk of ignition of the organic phase

Recommended system uses water to separate Acetic acid from Kerosene

Operation with the organic or the aqueous phase as the continuous phase inside the column

Location of the phase boundary is predetermined by the density difference between the phases with no sensors or controls involved

No solvent recovery system is necessary using the recommended Kerosene system, (the used Kerosene can be disposed of, or else reused by performing a simple assay and topping up with acetic acid).

Technical Details:

Aqueous phase circulation system with a approx. 25l feed tank, approx. 25l return tank and variable speed pump. 

Pump is calibrated and gives flows of approx. 50-250ml/min.

Organic phase circulation system with an 18l feed tank, 18l return tank and variable speed air operated pump. 

Pump is calibrated and gives flows of approx. 50-250ml/min

Column length approx. 1.6m (1.2m working length), 50mm diameter, made from glass

Touch panel for control / calibration  of pumps and display of measurements

Column packed with preferably 15mm glass Rashig rings

Includes valves for taking samples of both phases for analysis

A single valve sets either the organic phase or the aqueous phase as the continuous phase.