One method is to add an acidic potassium permanganate solution to the mixture, oxidize cyclohexene to a substance that is dissolved in water after sufficient shaking, and then add the liquid to the separatory funnel, discharge the aqueous solution at the lower mouth, and release the cyclohexene at the upper mouth. The second method is distillation. The boiling point of cyclohexane is 80.738°C, 60.8°C (53.2kPa), and the boiling point of cyclohexene is 83°C. It can be separated by distillation. But because the boiling points of the two are similar, it is more difficult to control. Industrial For the above, please refer to "Research on Co2+ Immobilized PVA to Promote Pervaporation and Separation of Cyclohexene/Cyclohexane by Transfer Membrane", selected from the Chinese version of "Petrochemical Industry", October 2003, Vol. 32, Issue 10.