Populationsbilanz von Tropfenschwärmen in gerührten Extraktionskolonnen

Projekt: Foschungsprojekt



The behaviour of droplet swarms in liquid-liquid dispersions,
especially found in extraction columns, is analysed by means
of a new fluorescence measurement technique, which represents
an extension to the capillary suction method (Pilhofer and Miller,
1972). The measuring principle developed gains profit of the
detectable emission light intensity of a fluorescent dye even
in trace concentration. An addition of this nontransferring
dye to the dispersed phase enables the in-situ determination
of bivariate drop size / drop concentration distributions,
which provides important information on droplet history for
the evaluation of coalescence and break-up rates. Furthermore,
the measuring method represents a new approach for the measurement
of droplet size dependent residence times in extraction columns.
Tatsächlicher Beginn/ -es Ende1/01/9528/02/98