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发明公开
CN103360206A 生产1,4-丁二醇、四氢呋喃、γ-丁内酯和丁醇的方法 有权

生产1,4-丁二醇、四氢呋喃、γ-丁内酯和丁醇的方法
摘要：
本发明涉及一种生产1,4-丁二醇、四氢呋喃、γ-丁内酯和丁醇的方法，通过采用在酯化单元，固定床反应器结合催化蒸馏塔进行双酯化反应；反应产物分离出四氢呋喃后，经丁醇单元分离得到丁醇；含1,4-丁二醇和γ-丁内酯的物流先将部分1,4-丁二醇携乙缩醛分离出，从而得到纯度达到要求的1,4-丁二醇产品；与乙缩醛一同排出的1,4-丁二醇通过脱氢反应转化为γ-丁内酯，与乙缩醛一起进入γ-丁内酯精制单元，实现乙缩醛与γ-丁内酯分离的技术方案较好地解决了该问题，可用于生产1,4-丁二醇、四氢呋喃、γ-丁内酯和丁醇的工业生产中。
摘要（英）：

The invention relates to a method for producing 1,4-butanediol, tetrahydrofuran, gamma-butyrolactone and butanol. According to the technical scheme, double-esterification reaction is carried out in an esterification unit by virtue of the combination of a fixed bed reactor and a catalysis distilling tower; tetrahydrofuran is separated out of a reaction product, then butanol is separated out of the reaction product by using a butanol unit, a part of 1,4-butanediol with acetal is firstly separated out of a material flow containing 1,4-butanediol and gamma-butyrolactone, so as to obtain a 1,4-butanediol product which meets the purity requirement; 1,4-butanediol which is discharged together with acetal is converted into gamma-butyrolactone through dehydrogenation reaction, and the gamma-butyrolactone is fed into a gamma-butyrolactone refining unit together with acetal, so as to separate the acetal from the gamma-butyrolactone. The method can solve the problems in the prior art very well and can be applied to industrial production of 1,4-butanediol, tetrahydrofuran, gamma-butyrolactone and butanol.

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