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1. 发明申请

US20130211141A1 MONITORING OF THE STOICHIOMETRIC RATIO IN THE REACTION OF NITROAROMATICS WITH HYDROGEN 有权
标题翻译：在氢化反应中监测硝基比例的测定
公开(公告)号：US20130211141A1
公开(公告)日：2013-08-15
申请号：US13759466
申请日：2013-02-05
申请人： Andreas RAICHLE , Stefanie Haase , Holgar Braunsberg , Johannes Buettner , Ulrich Penzel , Samuel Neto
发明人： Andreas RAICHLE , Stefanie Haase , Holgar Braunsberg , Johannes Buettner , Ulrich Penzel , Samuel Neto
IPC分类号： 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。

2. 发明授权

US08609899B2 Process for preparing toluenediamine by hydrogenation of dinitrotoluene 有权
标题翻译：通过氢化二硝基甲苯制备甲苯二胺的方法
公开(公告)号：US08609899B2
公开(公告)日：2013-12-17
申请号：US13109399
申请日：2011-05-17
申请人： Andreas Raichle , Joana Coelho Tsou , Samuel Neto , Ulrich Penzel , Steffen Oehlenschlaeger , Michael Zoellinger , Holgar Braunsberg , Stefanie Haase , Johannes Buettner
发明人： Andreas Raichle , Joana Coelho Tsou , Samuel Neto , Ulrich Penzel , Steffen Oehlenschlaeger , Michael Zoellinger , Holgar Braunsberg , Stefanie Haase , Johannes Buettner
IPC分类号： C07C209/00
CPC分类号： C07C209/36 , C07C211/49
摘要： The invention relates to a process for the continuous preparation of toluenediamine by liquid-phase hydrogenation of dinitrotoluene by means of hydrogen in the presence of a suspended, nickel-comprising catalyst in a reactor with a product isolation unit downstream of the reactor to give a product output from the reactor comprising a liquid phase comprising toluenediamine and dinitrotoluene, in which the nickel-comprising catalyst is suspended, wherein the concentration of dinitrotoluene in the liquid phase of the product output from the reactor in the region between the reactor and the downstream product isolation unit is set to a value in the range from 1 to 200 ppm by weight, based on the total weight of the liquid phase of the product output from the reactor.
摘要翻译：本发明涉及通过在反应器中的悬浮的含镍催化剂存在下，借助于氢气对二硝基甲苯进行液相氢化来连续制备甲苯二胺的方法，该反应器具有在反应器下游的产物隔离单元以产生产物从包括甲苯二胺和二硝基甲苯的液相的反应器输出，其中悬浮有含镍催化剂，其中在反应器和下游产物隔离之间的区域中从反应器输出的产物的液相中二硝基甲苯的浓度基于从反应器输出的产物的液相的总重量，单位设定在1至200重量ppm的范围内的值。

3. 发明授权

US08835688B2 Optimized introduction of the starting materials for a process for preparing aromatic amines by hydrogenation of nitroaromatics 有权
标题翻译：通过硝基芳族化合物的氢化优化引入用于制备芳族胺的方法的原料
公开(公告)号：US08835688B2
公开(公告)日：2014-09-16
申请号：US13421453
申请日：2012-03-15
申请人： 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
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： C07C209/00 , B01J8/22 , C07C209/36
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。

4. 发明授权

US07851661B2 Method for producing dinitrotoluene 有权
标题翻译：二硝基甲苯生产方法
公开(公告)号：US07851661B2
公开(公告)日：2010-12-14
申请号：US10586683
申请日：2005-02-02
申请人： Johannes Buettner , Wolfgang Mackenroth , Heinrich Hermann , Peter Konieczny , Juergen Gebauer
发明人： Johannes Buettner , Wolfgang Mackenroth , Heinrich Hermann , Peter Konieczny , Juergen Gebauer
IPC分类号： C07C205/00
CPC分类号： C07C201/08 , C07C201/14 , C07C205/06
摘要： The present invention provides a process for preparing dinitrotoluene, comprising the steps of a) reacting toluene with nitric acid in the presence of sulphuric acid to give mononitrotoluene, b) separating the reaction product from step a) into an organic phase comprising mononitrotoluene and an aqueous phase comprising sulfuric acid, c) reacting the organic phase comprising mononitrotoluene with nitric acid in the presence of sulphuric acid to give dinitrotoluene, d) separating the reaction product from step c) into an organic phase comprising dinitrotoluene and an aqueous phase comprising sulfuric acid, wherein the reaction product from step a) has a content of toluene of from 3.0 to 8% by weight, based on the organic phase, and a content of nitric acid of from 0.1 to 1.2% by weight, based on the aqueous phase, and the phase separation in step b) is effected in such a way that further reaction of the toluene with the nitric acid is prevented.
摘要翻译：本发明提供了制备二硝基甲苯的方法，包括以下步骤：a）在硫酸存在下使甲苯与硝酸反应得到一硝基甲苯，b）将步骤a）中的反应产物分离成包含单硝基甲苯和水相，包括硫酸，c）在硫酸存在下使包含一硝基甲苯的有机相与硝酸反应，得到二硝基甲苯，d）将步骤c）中的反应产物分离成包含二硝基甲苯和含有硫酸的水相的有机相，其中步骤a）的反应产物的甲苯含量为3.0-8重量％，基于有机相，硝酸含量为0.1-1.2重量％，基于水相，和步骤b）中的相分离是以防止甲苯与硝酸进一步反应的方式进行的。

5. 发明授权

US09079822B2 Process for the preparation of nitrated aromatics and mixtures thereof 有权
标题翻译：硝化芳族化合物及其混合物的制备方法
公开(公告)号：US09079822B2
公开(公告)日：2015-07-14
申请号：US13203360
申请日：2010-02-26
申请人： Wolfgang Mackenroth , Johannes Buettner , Eckhard Stroefer , Wolfgang Voigt , Frank Bok
发明人： Wolfgang Mackenroth , Johannes Buettner , Eckhard Stroefer , Wolfgang Voigt , Frank Bok
IPC分类号： C07C209/00 , C07C201/08
CPC分类号： C07C201/08 , C07C205/06
摘要： A process for the preparation of mononitroaromatics and dinitroaromatics, in which a hydrate melt of at least one metal nitrate M(NO3)3 is used as a nitrating medium, it being possible for M to be the metals Fe, Cr, Y, La, Ce, Al, Bi and In, and the metal nitrate having a water content of from 4 to 9 mol of water per M(NO3)3, leads to simplifications of the process and improved yields.
摘要翻译：一种制备单硝基芳族化合物和二硝基溴化物的方法，其中使用至少一种金属硝酸盐M（NO 3）3的水合物熔融物作为硝化介质，M可以是金属Fe，Cr，Y，La， Ce，Al，Bi和In，每M（NO 3）3含水量为4〜9mol的金属硝酸盐导致工艺的简化和提高的产率。

6. 发明申请

US20110306795A1 PROCESS FOR THE PREPARATION OF NITRATED AROMATICS AND MIXTURES THEREOF 有权
标题翻译：制备硝酸芳香族化合物及其混合物的方法
公开(公告)号：US20110306795A1
公开(公告)日：2011-12-15
申请号：US13203360
申请日：2010-02-26
申请人： Wolfgang Mackenroth , Johannes Buettner , Eckhard Stroefer , Wolfgang Voigt , Frank Bok
发明人： Wolfgang Mackenroth , Johannes Buettner , Eckhard Stroefer , Wolfgang Voigt , Frank Bok
IPC分类号： C07C209/02
CPC分类号： C07C201/08 , C07C205/06
摘要： A process for the preparation of mononitroaromatics and dinitroaromatics, in which a hydrate melt of at least one metal nitrate M(NO3)3 is used as a nitrating medium, it being possible for M to be the metals Fe, Cr, Y, La, Ce, Al, Bi and In, and the metal nitrate having a water content of from 4 to 9 mol of water per M(NO3)3, leads to simplifications of the process and improved yields.
摘要翻译：一种制备单硝基芳族化合物和二硝基溴化物的方法，其中使用至少一种金属硝酸盐M（NO 3）3的水合物熔融物作为硝化介质，M可以是金属Fe，Cr，Y，La， Ce，Al，Bi和In，每M（NO 3）3含水量为4〜9mol的金属硝酸盐导致工艺的简化和提高的产率。

7. 发明授权

US07449610B2 Method for extracting nitrocresols from waste water produced in the manufacture of mononitrotoluene and use of said extract 有权
标题翻译：用于在制造单硝基甲苯中生产的废水中提取硝基甲酚的方法和所述提取物的使用
公开(公告)号：US07449610B2
公开(公告)日：2008-11-11
申请号：US10573020
申请日：2004-09-18
申请人： Johannes Buettner , Holger Allardt , Reinhard Tonder , Reiner Reetz , Michael Reichelt
发明人： Johannes Buettner , Holger Allardt , Reinhard Tonder , Reiner Reetz , Michael Reichelt
IPC分类号： C07C205/06 , C02F1/26
CPC分类号： C02F1/26 , C02F2101/38 , C02F2103/36 , C07C201/16 , C07C205/06 , C07C205/22
摘要： The invention provides a process for removing nitrocresols from wastewater of mononitrotoluene preparation, which comprises acidifying the alkaline wastewater of mononitrotoluene preparation with acids to a pH of at most 3 and treating the nitrocresols with an extractant.The invention further provides the preparation of dinitrotoluene by use of the nitrocresol-containing extracts as a feedstock.
摘要翻译：本发明提供从一硝基甲苯制备废水中除去硝基甲酚的方法，该方法包括用酸将碱性废水酸化至pH为3以下，用萃取剂处理硝基甲酚。本发明还提供了通过使用含有硝基甲酚的提取物作为原料制备二硝基甲苯。

8. 发明申请

US20070043244A1 Method for extracting nitrocresols from waste water produced in the manufacture of mononitrotoluene and use of said extract 有权
标题翻译：用于在制造单硝基甲苯中生产的废水中提取硝基甲酚的方法和所述提取物的使用
公开(公告)号：US20070043244A1
公开(公告)日：2007-02-22
申请号：US10573020
申请日：2004-09-18
申请人： Johannes Buettner
发明人： Johannes Buettner
IPC分类号： A62D3/36 , A62D3/00 , C07C205/21
CPC分类号： C02F1/26 , C02F2101/38 , C02F2103/36 , C07C201/16 , C07C205/06 , C07C205/22
摘要： The invention provides a process for removing nitrocresols from wastewater of mononitrotoluene preparation, which comprises acidifying the alkaline wastewater of mononitrotoluene preparation with acids to a pH of at most 3 and treating the nitrocresols with an extractant. The invention further provides the preparation of dinitrotoluene by use of the nitrocresol-containing extracts as a feedstock.
摘要翻译：本发明提供从一硝基甲苯制备废水中除去硝基甲酚的方法，该方法包括用酸将碱性废水酸化至pH为3以下，用萃取剂处理硝基甲酚。本发明还提供了通过使用含有硝基甲酚的提取物作为原料制备二硝基甲苯。

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