中草药制剂的回收乙醇中杂质的去除方法探讨 关键词] 中草药制剂；回收乙醇；除杂质方法 [gap=1227]Key words] Medicinal herb preparation; Recycled ethanol; Removal of impurities
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环合废液脱水后，分离塔回流比为15，理论板为40时，回收乙醇中甲醇的质量分数小于10%。
The recovered ethanol with less than 10% methanol can be purified in a dehydration tower and a separation tower with 40 theoretical plates and a reflux ratio of 15.
甲氧苄氨嘧啶合成过程产生大量含甲醇和乙醇的废液，实验研究了新的回收工艺。
Large amounts of methanol and ethanol exist in the effluent of the condensation and cyclization reaction during the trimethoprim synthesis process. A new recovery process was evaluated experimentally.
回收的环己烷、无水乙醇可再用于物理化学实验。
The purified cyclohexane and absolute ethanol can be suitable to the experiment of physical chemistry.
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