Efficiency of conventional separation,namely azeotropic distillation or extractive distillation,was relatively low due to very close relative volatility of benzene and cyclohexane.

• 由于苯和环己烷的相对挥发度非常接近,利用传统分离方法(如萃取精馏或共沸精馏)分离苯-环己烷混合物的分离效率较低。