Under the assumption of constant molar overflows and relative volatility, a simplified model is developed to study the behavior of the distillation process under consideration. 假定液體持液量和待分離的體系的相對揮發度均保持不變，建立了該塔的一個簡化的模型，由此得到各組分在整個塔中的分佈情況。
The extractive agent will effectively increase the relative voatility between active amyl alcohol and isoamyl alcohol, and is easy to be recovered bo isoamyl alchohol. 該萃取劑能有效增加原溶液中組份的相對揮發度，且回收容易。
