加盐反应萃取精馏分离醇水溶液

Separation on the Aqueous Alcohol Solution by Extractive and Reactive Distillation with Salt

将加盐萃取精馏和反应萃取精馏结合起来提出了加盐反应萃取精馏分离醇水溶液的新方法。由异丙醇 -水体系的汽液平衡试验结果表明加盐反应萃取精馏比单独的加盐萃取精馏更优 ,工艺试验证明当溶剂比为 1∶1时 ,容易得到产品纯度 96%以上的异丙醇。

On the basis of extractive distillation with salt and extractive distillation with reaction,a new method of extractive distillation with salt and reaction combined was put forward in the paper.According to the experiments of isopropanol\|water system it showed that extractive distillation with salt and reaction combined was better than extractive distillation with salt only.Through the process experiment it further proved that this method got the product of isopropanol over 96% and was very effective for separating aqueous alcohol solutions.