发明申请
- 专利标题： Process for the preparation of toluenediamines by catalytic hydrogenation of dinitrotoluenes
- 专利标题（中）： 通过二硝基甲苯的催化氢化制备甲苯二胺的方法
-
申请号： US12001879申请日： 2007-12-13
-
公开(公告)号： US20080146847A1公开(公告)日： 2008-06-19
- 发明人: Fritz Pohl , Wolfgang Lorenz , Lars Padeken , Bernd Pennemann , Friedhelm Steffens , Gerhard Wiechers
- 申请人： Fritz Pohl , Wolfgang Lorenz , Lars Padeken , Bernd Pennemann , Friedhelm Steffens , Gerhard Wiechers
- 专利权人： Bayer MaterialScience AG
- 当前专利权人： Bayer MaterialScience AG
- 优先权： DE102006060572.1 20061219
- 主分类号： C07C209/36
- IPC分类号： C07C209/36
摘要：
The present invention relates to a process for the preparation of toluenediamine, in which dinitrotoluene is reacted with hydrogen in the presence of a catalyst. The dinitrotoluene required by this process has a content of carbon dioxide, in either physically dissolved or chemically bonded form, of not more than 0.175 mol %, based on the molar amount of the dinitrotoluene.
公开/授权文献
信息查询
