反应精馏制四氢呋喃

利用自制的含硅强酸性阳离子交换树脂催化 1,4 丁二醇脱水合成四氢呋喃的反应。结果表明催化剂活性较好 ,且比常规离子交换树脂使用温度范围宽 ,可在较高的温度使用 ,但机械稳定性有待改善。进一步对 1,4 丁二醇脱水反应精馏进行初步实验研究 ,发现反应精馏能较好地分离反应产物THF和水 ,塔顶产品THF的纯度可以达到 98%以上。认为用反应精馏方法由 1,4 丁二醇脱水制备四氢呋喃是可进一步开发的技术。

Synthesis of Tetrahydrofuran from Butanediol by Reactive Distillation

Synthesis of tetrahydrofuran(THF) from Butanediol(BDO) catalyzed by the acidic resin containing silica was studied.It was found that the catalyst used was in good activity,almost as good as H 3PW 12 O 40 ,and it could be used over a wide range of temperatures,while its mechanical stability could still be improved.The purity of THF was over 98% by reactive distillation when the feed was used as an extractive solvent.It is concluded that synthesis of THF for BDO by reactive distillation is a promising technology.