Study on an ideal start-up model for a modified Scheibel column

The start-up process existed in every solvent extraction process. An optimal start-up strategy in the solvent extraction process can shorten the time to get to steady state greatly. In order to offer some useful methods for the study on the start-up in the extraction process, an ideal start-up model was developed for a modified Scheibel extraction column. The numerical solution for the multi-stage extraction system was obtained from solving the mathematical equations. From the calculated values, the relationships between variables and time were established. According to the relationships obtained above, suitable start-up strategy could be taken to drive the extraction system to the desired steady state.