基本信息:
- 专利标题： VERFAHREN ZUR HERSTELLUNG VON AROMATISCHEN ISOCYANATEN
- 专利标题（英）：Method for producing aromatic isocyanates
- 专利标题（中）：用于生产芳族异氰酸
- 申请号：EP09781542.7 申请日：2009-08-06
- 公开(公告)号：EP2323973B1 公开(公告)日：2012-03-21
- 发明人： PENZEL, Ulrich , MATTKE, Torsten , WÖLFERT, Andreas , JACOBS, Johannes , CHENG, Tsung-Chieh , HEINEN, Kerstin , STROEFER, Eckhard , MAIXNER, Stefan , MACKENROTH, Wolfgang , TRAGUT, Christian , THIELE, Kai , WON, Myung Un
- 申请人： BASF SE
- 申请人地址： 67056 Ludwigshafen DE
- 专利权人： BASF SE
- 当前专利权人： BASF SE
- 当前专利权人地址： 67056 Ludwigshafen DE
- 优先权： EP08161976 20080807
- 国际公布： WO2010015667 20100211
- 主分类号： C07C263/10
- IPC分类号： C07C263/10
摘要：
The invention relates to a method for producing isocyanates through reaction of the corresponding amines with phosgene in the liquid phase, optionally in the presence of at least one inert medium, in which first the amine and the phosgene are mixed in a mixing chamber (1) to form a reaction mixture and the reaction mixture is fed to a reactor, wherein the amine is added through an opening (3) that is disposed coaxially to the mixing chamber (1) and wherein the phosgene is added through feed openings (5) in at least two planes (7, 9) disposed perpendicular to the axis (11) of the mixing chamber (1), or the phosgene is added through the opening (3) that is coaxial to the mixing chamber and the amine is added through the feed openings (5) in at least two planes (7, 9) disposed perpendicular to the axis (11) of the mixing chamber (1). At least one plane (9) is disposed upstream in the main flow direction of the reaction mixture and at least one plane (7) is disposed downstream relative to the opening (3) disposed coaxially to the mixing chamber (1). The average residence time of the reaction mixture in the mixing chamber (1) is no more than 20 ms.
公开/授权文献:
- EP2323973A1 VERFAHREN ZUR HERSTELLUNG VON AROMATISCHEN ISOCYANATEN 公开/授权日：2011-05-25
IPC结构图谱:
| C | 化学；冶金 |
| --C07 | 有机化学 |
| ----C07C | 无环或碳环化合物 |
| ------C07C263/00 | 异氰酸衍生物的制备 |
| --------C07C263/10 | .由胺或羧基卤化物，例如与光气反应 |