文献类型：期刊文献

中文题名：新型柴油添加剂聚缩醛二甲醚的分离研究

英文题名：Study on separation of a new diesel fuel additive polyoxymethylene dimethyl ethers

作者：胡国庆[1];田恒水[1];魏永梅[1];黄婕[1]

机构：[1]华东理工大学化工学院

年份：2015

卷号：44

期号：5

起止页码：52

中文期刊名：石油与天然气化工

外文期刊名：Chemical engineering of oil & gas

收录：北大核心:【北大核心2014】；

语种：中文

中文关键词：萃取;聚缩醛二甲醚;分离;精馏

外文关键词：extraction; polyoxymethylene dimethyl ethers; separation; rectification

摘要：利用萃取等方法处理原料,有效地减轻了塔堵塞和共沸夹带过多的问题。采用常-减压精馏相结合的方法对聚缩醛二甲醚进行了分离,得到了各产物分离的较佳工艺条件。实验中得到了纯度(质量分数)分别为99.06%的甲缩醛、97.81%的二聚产物、99.68%的三聚产物以及99.62%的四聚产物,为工业化分离提纯聚缩醛二甲醚提供了基础依据。
The raw material was treated by extraction,which effectively reduced the tower plugging and azeotropic entrainment.Polyoxymethylene dimethyl ethers（PODE）were separated by atmospheric-vacuum rectification and the optimal technical conditions of each product separation were achieved.In the experiment,the purity of each product reached methyl 99.06%,PODE2 97.81%,PODE3 99.68%,and PODE4 99.62%,which could provide an experimental basis for industrial purification of polyoxymethylene dimethyl ethers.