公开(公告)号：US09556136B2

公开(公告)日：2017-01-31

申请号：US14662890

申请日：2015-03-19

Applicant: BASF SE

Inventor： Stefan Rittinger ,  Regina Vogelsang ,  Pierre Fournier ,  Anirudh Acharya ,  Sonja Judat

IPC: C07D295/023 ,  C08F26/10 ,  C08F226/10

CPC classification number: C07D295/023 ,  C08F26/10 ,  C08F226/10

Abstract: A process for the distillation of a mixture which consists to at least 90% by weight of a cyclic N-vinylamide and which comprises a stabilizer, wherein a polyether is added to the mixture before or during distillation and a product is obtained which consists to at least 99.5% by weight of the cyclic N-vinylamide.

Abstract translation: 蒸馏混合物的方法，该混合物由至少90重量％的环状N-乙烯基酰胺组成，并且包含稳定剂，其中在蒸馏之前或期间将聚醚加入到混合物中，并获得产物，其组成为 至少99.5重量％的环状N-乙烯基酰胺。