Continuous Ultrafiltration of Reverse Micelles in the Ternary System Igepal CA 520/Cyclohexane/Water

摘要

The ultrafiltration is a separation technique at the nanometer scale and is applicable for the rejection of reverse micelles, spherical aggregates of surfactants, at membrane surfaces. We investigated the continuous ultrafiltration of reverse micelles in the non-ionic ternary system Igepal CA 520/cyclohexane/water. The dependence of flux velocity and rejection on transmembrane pressure, droplet size, concentration of surfactant and temperature is described. With increasing pressure we also found micelles beside surfactant monomers in the permeate.