Pressure Drop Measurement of Column Weight in Disc and Doughnut Pulsed Extraction Column by External Air Purge Method

The pressure drop of column weight was measured in a disc and doughnut pulsed extraction column with the inertial diameter of 0.3 m and height of 5.6 m by internal and external air purge methods, respectively. The experimental results show that the pressure drops of column weight measured by external air purge method are in good agreement with those by internal air purge method, therefore, the external air purge method is recommended to measure the pressure drop of column weight in the pulsed extraction column in plutonium purification cycle.