Comparison of Resin Method and Neutralization Method for Removing Sodium Methoxide
At present,most of the PTMEG processes in China are using INVISTA technology.In this process,there are two different methods for removing sodium methoxide:neutralization method and resin method,which can effectively remove Na+from PTMEG.This article compares two methods in terms of process flow,cost considerations,operational difficulty,safety and environmental protection,in order to obtain comparative conclusions.
neutralization methodion exchange resin methodsodium methoxidePTMEGplate and frame filtration system