Collect. Czech. Chem. Commun. 1986, 51, 1016-1026

The study of pressure variations at the bottom of a vibrating plate extraction column

Radomir Stevanovića, Vladeta Pavasovića, Dušan Simonovićb and Stevan Nemodaa

a The Boris Kidrič Institute of Nuclear Sciences-Vinča, 11001 Beograd, P.O.B. 522, Yugoslavia
b Faculty of Technology, University of Beograd, 11000 Beograd, Yugoslavia


Pressure changes at the bottom of a vibrating plate extraction column, when single and two liquid phases are flowing through, were analyzed. The model, which describes the action of the forces in the studied system, represents the solution of the macroscopic momentum balance. An experimental procedure for verification of the theoretical considerations consists of the following steps: a) measurement of the pressure drop at the bottom of the extractor, continuous determination of the dispersed phase hold-up, control of the flow rates of liquid phases and characterisation of the perforated plates vibrating motion; b) transfer of the measured data from a tape recorder to the computer system PDP-11, T-34 Digital; and c) development of computer programs for data processing.