申请人:ASAHI GLASS COMPANY LTD.
公开号:EP1323697A1
公开(公告)日:2003-07-02
Less colored trans-1,3-dichloropropene and a process for producing it, are presented.
A composition comprising cis-1,3-dichloropropene, trans-1,3-dichloropropene and C6 compounds, is subjected to a distillation step and to a step of reacting chlorine or bromine, to remove cis-1,3-dichloropropene as a low boiling component, and then the residue is distilled to remove the chlorinated C6 compounds as a high boiling component and to obtain trans-1,3-dichloropropene as a low boiling component.
本文介绍了颜色较浅的反式-1,3-二氯丙烯及其生产工艺。
由顺式-1,3-二氯丙烯、反式-1,3-二氯丙烯和 C6 化合物组成的组合物经过蒸馏步骤和氯或溴反应步骤,除去作为低沸点组分的顺式-1,3-二氯丙烯,然后对残留物进行蒸馏,除去作为高沸点组分的氯化 C6 化合物,得到作为低沸点组分的反式-1,3-二氯丙烯。