Batch distillation experiments made to separate the ethanol& water mixture system in a C-02 type metal gauze packing column variable reflux ratio policies have shown that the optimal operation of this column is the constant reflux ratio policy. 在C&02型金属网波填料塔进行乙醇-水系统间歇精馏实验表明:恒回流操作是该塔的优化操作方式。