摘要
2 ,6-二甲基萘是制备高性能聚酯 聚对萘二甲酸乙二醇酯最理想的原料 ,如何低成本地获得 2 ,6 二甲基萘已成为一项重要的课题。本文介绍了从二甲基萘异构体中分离 2 ,6 二甲基萘的方法 ,即超临界萃取法、压力结晶法、吸附分离法及冷冻结晶法等 。
dimethylnaphthalene is an ideal raw material of the production of polyethylene naphthalate. It is an important task to obtain 2,6 dimethyinaphthalene in low cost. In this paper, several kinds of separation ways of producing 2,6 dimethylnaphthalene from dimethylnaphthalene isomers, such as supercritical extraction, pressure crystallization, adsorptive separation and cooling crystallization are reviewed. The trends of development and superiority of these methoods are also elaborated and analyzed respectively.
出处
《化学工业与工程》
CAS
2000年第6期362-368,共7页
Chemical Industry and Engineering
关键词
分离
2
6-二甲基萘
超临界萃取
压力结晶
吸附分离
separation
2,6-dimethylnaphthalene
supercritical extraction
pressure crystallization
adsorptive separation
