The arrangement shown illustrates the basic construction of a liquid/liquid extraction column incorporating two liquid feed vessels and two product receivers. Flow rates for each liquid are established by means of a twin-headed dosing pump, the heavy phase being passed down the column and the light phase being passed up the column to provide countercurrent contact between the phases. Several different extraction column arrangements are available for specific applications. These include pulse extraction columns, the rotating disc contactor and the Karr column. All extraction column arrangements are available for customer trials and further information about this service will be supplied on request.
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