Increase of the reflux ratio can improve the removal efficiency, with optimum reflux ratio is 60%-80%.
适当提高回流比，可提高去除效率，一般最佳回流比为60% ~ 80%。
According to the orthogonal design, the optimum reflux extraction was sought through experimental investigation.
并以正交实验确定回流提取的最佳工艺。
By analyzing the changes of reflux ratio, the optimum feed positions within the two distillation columns in the experimental device for double-effects distillation HGL of forward feed was determined.
根据回流比的变化，对顺流双效HGL精馏实验装置中两精馏塔的进料位置进行了优化。
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