摘要
对由硝基苯催化加氢制取对氨基苯酚的几种精制方法进行了讨论和比较 ,着重介绍了甲苯萃取法、硝基苯萃取法、甲苯苯胺萃取法、重结晶法等提纯方法。
Some processes for the purification of crude paminophenol prepared by catalytic hydrogenation of nitrobenzene were discussed and compared. These purifying processes included extracting method with toluene, or with nitrobenzene, or with a mixture of aniline and toluene, recrystallization etc.
出处
《精细石油化工》
CAS
CSCD
1996年第3期43-46,共4页
Speciality Petrochemicals
关键词
对氨基苯酚
精制
萃取
催化加氢
提纯方法
paminophenol
purification
toluene
nitrobenzene
extraction
catalytic hydrogenation
