The Effect of Anionic Surfactant Concentration on Mean Drop Size in a Mixer-Settler Extractor without Mass Transfer

The present work examines the influence of surfactant concentration on mean drop size. Experiments have been performed in various hold-ups, impeller speeds and surfactant concentrations. Agitation was provided by 2 four-blade impellers in a continuous single stage horizontal mixer-settler. The results show that in low concentration of surfactant, a significant decrease in mean drop size is observed, but at high concentration, increasing of surfactant concentration doesn’t change mean drop size more. Also, the effects of impeller speed and hold-up on mean drop size have been investigated.

کلیدواژه ها:

mixer-settler ، drop size ، surfactant ، hold-up ، impeller speed