摘要
采用常压精馏和溶剂重结晶相结合的方法,从工业二甲酚中分离3,5-二甲酚,精馏后可获得纯度>90%的3,5-二甲酚窄馏分,再经重结晶可获得纯度>99%的产品。
This paper described the separation of 3,5 xylenol from technical xylenol with the process of normal pressure rectification and solvent recrystallization. After rectification the narrow fraction of 3,5 xylenol with a purity of >90% can be obtained and then it will further suffer recrystallization to produce 3,5 xylenol with a purity of >99%.
出处
《燃料与化工》
2002年第2期89-92,共4页
Fuel & Chemical Processes
