The refining process of citral product from natural litsea cubeba was studied by means of vacuum batch distillation.
采用减压间歇精馏方法，对从天然产物山苍子油中提取柠檬醛产品的精制过程进行了研究。
The experimental study for purification of peach aldehyde by vacuum batch distillation, as well as the heat sensitivity of the product, is carried out.
采用真空间歇精馏技术对桃醛原料进行分离试验，考察了桃醛的热敏性，确定了安全的操作温度范围和适宜的操作方法。
The refining process of elemene from oil of Rhizoma Curcuma was studied by vacuum batch distillation. The suitable operating conditions of the refined process were obtained.
采用真空间歇精馏方法对从莪术精油提取榄香烯的精制过程进行了研究，得到适宜的工艺条件。
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