公开(公告)号：US09308515B2

公开(公告)日：2016-04-12

申请号：US14330281

申请日：2014-07-14

申请人： BASF SE

发明人： Gerrit Waters ,  Johannes Buettner ,  Andreas Raichle ,  Markus Hiller ,  Peter Renze ,  Michael Herrich ,  Helmut Rueger ,  Burkhard Hantel ,  Arndt Hofmann ,  Ruediger Fritz ,  Kathrin Richter ,  Holgar Braunsberg ,  Lothar Bruntsch

IPC分类号： B01J19/26 ,  C07C209/36 ,  B01J8/22

CPC分类号： B01J19/26 ,  B01J8/226 ,  B01J8/228 ,  B01J2208/00123 ,  B01J2208/00132 ,  B01J2208/00141 ,  B01J2208/0015 ,  B01J2208/00902 ,  B01J2208/00911 ,  B01J2219/00761 ,  C07C209/36 ,  C07C211/50

摘要： The invention relates to a process for preparing aromatic amines by hydrogenation of corresponding nitroaromatics by means of hydrogen, and also an apparatus suitable for this purpose. In particular, the invention relates to a process for preparing toluenediamine (TDA) by hydrogenation of dinitrotoluene (DNT).

摘要翻译： 本发明涉及通过氢气对相应的硝基芳族化合物进行氢化制备芳族胺的方法，以及适用于该目的的装置。 特别地，本发明涉及通过氢化二硝基甲苯（DNT）制备甲苯二胺（TDA）的方法。

公开(公告)号：US08895783B2

公开(公告)日：2014-11-25

申请号：US13759466

申请日：2013-02-05

申请人： BASF SE

发明人： Andreas Raichle ,  Stefanie Haase ,  Holgar Braunsberg ,  Johannes Buettner ,  Ulrich Penzel ,  Samuel Neto

IPC分类号： C07C209/00 ,  C07C209/36

CPC分类号： C07C209/36 ,  C07C211/47 ,  C07C211/50

摘要： The present invention relates to a continuous process for preparing at least one aromatic amine by hydrogenation of at least one nitroaromatic by means of hydrogen, where a liquid phase comprising at least the aromatic amine and a gas phase comprising at least hydrogen are present, in the presence of a catalyst suspended in the liquid phase at a temperature of from 50 to 250° C. and a pressure of from 5 to 50 bar, wherein the pressure in the reactor is kept essentially constant by continuous adaptation of the amount of hydrogen fed to the reactor, the total amount of hydrogen fed to the reactor is monitored and the introduction of the at least one nitroaromatic is interrupted if the hydrogen uptake in the reactor is not at least 50 mol % of the amount of hydrogen required for stoichiometric reaction of the at least one nitroaromatic to form the at least one aromatic amine.

摘要翻译： 本发明涉及通过氢气至少一种硝基芳族化合物来制备至少一种芳族胺的连续方法，其中至少包含芳族胺的液相和至少包含氢的气相存在于 在50至250℃的温度和5至50巴的压力下悬浮在液相中的催化剂的存在，其中反应器中的压力通过连续适应供给到 监测反应器中进料到反应器中的氢气总量，如果反应器中的氢气吸收量不是化学计量反应所需的氢量的至少50摩尔％，则至少一种硝基芳族化合物的引入被中断 至少一种硝基芳族化合物以形成所述至少一种芳族胺。