公开(公告)号：EP1076654B1

公开(公告)日：2003-06-25

申请号：EP99923434.7

申请日：1999-04-22

申请人： BASF AKTIENGESELLSCHAFT

发明人： BIRNBACH, Stefan ,  DOCKNER, Toni ,  MOHR, Jürgen ,  BENFER, Regina ,  BIEG, Walter ,  PETERS, Jarren ,  RUGE, Bernd ,  WEINLE, Werner ,  ZEHNER, Peter

IPC分类号： C07D317/36 ,  C07D317/38

CPC分类号： C07D317/36 ,  C07D317/38

摘要： The invention relates to a method for continually producing 1,3-dioxolan-2-ones such as ethylene carbonate or propylene carbonate by reacting a corresponding oxirane with carbon dioxide in liquid phase in the presence of a catalyst. The reaction is carried out in a two-part reactor. In the first part of the reactor, the reaction is carried out with back-mixing until a conversion rate of oxirane II of at least 80 % has been reached. In the second part, the reaction is completed under conditions without back-mixing, the carbon dioxide being guided to the oxirane II in a counterflow throughout the reactor.

公开(公告)号：EP1076654A2

公开(公告)日：2001-02-21

申请号：EP99923434.7

申请日：1999-04-22

申请人： BASF AKTIENGESELLSCHAFT

发明人： BIRNBACH, Stefan ,  DOCKNER, Toni ,  MOHR, Jürgen ,  BENFER, Regina ,  BIEG, Walter ,  PETERS, Jarren ,  RUGE, Bernd ,  WEINLE, Werner ,  ZEHNER, Peter

IPC分类号： C07D317/36 ,  C07D317/38

CPC分类号： C07D317/36 ,  C07D317/38

摘要： The invention relates to a method for continually producing 1,3-dioxolan-2-ones such as ethylene carbonate or propylene carbonate by reacting a corresponding oxirane with carbon dioxide in liquid phase in the presence of a catalyst. The reaction is carried out in a two-part reactor. In the first part of the reactor, the reaction is carried out with back-mixing until a conversion rate of oxirane II of at least 80 % has been reached. In the second part, the reaction is completed under conditions without back-mixing, the carbon dioxide being guided to the oxirane II in a counterflow throughout the reactor.