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制取乙酸乙酯加料顺序
更新时间: 2021-04-06 04:09:04  

1、先加乙醇,再加浓硫酸,最后加乙酸。

2、因为相当于稀释浓硫酸,所以先加乙醇,后加浓硫酸,由于放出大量的热,乙醇和乙酸都容易挥发,但乙酸的价格更贵。

3、所以,等温度降一下后,再加乙酸,就可以防止乙酸的挥发,从而节省原料,提高原料的转化率。

关键词: 制取 乙酸 加料 顺序

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