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.
关键词
中和法/离子交换树脂法/甲醇钠/PTMEG/板框过滤系统
Key words
neutralization method/ion exchange resin method/sodium methoxide/PTMEG/plate and frame filtration system
维普
万方数据