1.The purpose of polymethylene polyphenyl polyamines purification system is to get rid of anilin and water.The stripping tower and drying tower are two main separation units in the system.

1.多胺精制系统的任除粗多胺中的苯胺和水,针对现有工艺存的精制效果差、消耗高等问题,分别对影响和干燥的因素进行了模拟分析,出了相应的改进措施。