Dividing wall column and method of purificaiton for vinylidene dichloride using the same

摘要

The present invention relates to a dividing wall distillation column and a method for refining vinylidene dichloride by using the same. More specifically, the present invention relates to the dividing wall distillation column capable of refining a crude product comprising vinylidene dichloride in a high purity, and the method for refining vinylidene dichloride by using the same. According to the dividing wall distillation column and the method for refining vinylidene dichloride by using the same, it is possible to refine the crude product having a small amount of vinylidene dichloride and a large quantity of high-boiling-point components in the high purity, and reduce the amount of energy consumption more than that in conventional cases.