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公开(公告)号:US20140128638A1
公开(公告)日:2014-05-08
申请号:US13978479
申请日:2012-01-06
申请人: Michael Merkel , Karl-Heinz Wilke , Peter Lehner , Andre Lago , Erwin Dieterich
发明人: Michael Merkel , Karl-Heinz Wilke , Peter Lehner , Andre Lago , Erwin Dieterich
IPC分类号: C07C209/36
CPC分类号: C07C209/36 , C07C211/46
摘要: The invention relates to a process for the continuous preparation of aromatic amines by hydrogenation of the corresponding nitroaromatics in the presence of catalysts arranged in reaction spaces, in which an adiabatically operated reaction space RA is connected downstream of an isothermally operated reaction space RI and RA additionally also has a separate feed for the nitroaromatic to be hydrogenated, RI is fed with the nitroaromatic to be hydrogenated from the start to the end of the hydrogenation, and the product mixture emerging from RI is fed into RA from the start to the end of the hydrogenation, wherein RA can additionally be fed via the separate feed with the nitroaromatic to be hydrogenated.
摘要翻译: 本发明涉及通过在反应空间中排列的催化剂存在下氢化相应的硝基芳族化合物来连续制备芳族胺的方法,其中绝热操作的反应空间RA另外连接等温操作的反应空间RI和RA的下游 还具有用于待氢化的硝基芳族化合物的单独进料,从加氢的开始到结束,将氮源自硝基芳族化合物进行氢化,并将从RI出现的产物混合物从起始到末端进料到RA中 氢化,其中RA可以另外通过单独的进料与待氢化的硝基芳族化合物进料。
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公开(公告)号:US09139510B2
公开(公告)日:2015-09-22
申请号:US13978479
申请日:2012-01-06
申请人: Michael Merkel , Karl-Heinz Wilke , Peter Lehner , Andre Lago , Erwin Dieterich
发明人: Michael Merkel , Karl-Heinz Wilke , Peter Lehner , Andre Lago , Erwin Dieterich
IPC分类号: C07C209/00 , C07C209/36
CPC分类号: C07C209/36 , C07C211/46
摘要: The invention relates to a process for the continuous preparation of aromatic amines by hydrogenation of the corresponding nitroaromatics in the presence of catalysts arranged in reaction spaces, in which an adiabatically operated reaction space RA is connected downstream of an isothermally operated reaction space RI and RA additionally also has a separate feed for the nitroaromatic to be hydrogenated, RI is fed with the nitroaromatic to be hydrogenated from the start to the end of the hydrogenation, and the product mixture emerging from RI is fed into RA from the start to the end of the hydrogenation, wherein RA can additionally be fed via the separate feed with the nitroaromatic to be hydrogenated.
摘要翻译: 本发明涉及通过在反应空间中排列的催化剂存在下氢化相应的硝基芳族化合物来连续制备芳族胺的方法,其中绝热操作的反应空间RA另外连接等温操作的反应空间RI和RA的下游 还具有用于待氢化的硝基芳族化合物的单独进料,从加氢的开始到结束,将氮源自硝基芳族化合物进行氢化,并将从RI出现的产物混合物从起始到末端进料到RA中 氢化,其中RA可以另外通过单独的进料与待氢化的硝基芳族化合物进料。
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公开(公告)号:US20080234518A1
公开(公告)日:2008-09-25
申请号:US11881014
申请日:2007-07-25
申请人: Knut Sommer , Ido Schwarz , Susanne Buchholz , Franz-Ulrich Von Gehlen , Andre Lago , Karl-Heinz Wilke , Holger Orzesek , Hans-Georg Pirkl , Peter Lehner , Stephan Schubert
发明人: Knut Sommer , Ido Schwarz , Susanne Buchholz , Franz-Ulrich Von Gehlen , Andre Lago , Karl-Heinz Wilke , Holger Orzesek , Hans-Georg Pirkl , Peter Lehner , Stephan Schubert
IPC分类号: C07C209/36
CPC分类号: C07C209/36 , Y02P20/128 , C07C211/46
摘要: Aromatic amines are produced by adiabatic hydrogenation of nitroaromatic compounds in the gas phase on one or more fixed catalysts. The nitroaromatic reactant is passed over the catalyst under pressure and at elevated temperature with hydrogen, water, optionally nitrogen and substantially in the absence of the aromatic amine produced from the nitroaromatic.
摘要翻译: 芳族胺通过在一个或多个固定催化剂上的气相中的硝基芳族化合物的绝热氢化产生。 硝基芳族反应物在压力和升高的温度下在氢气,水,任选的氮气和基本上不存在由硝基芳族化合物产生的芳族胺的情况下通过催化剂。
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公开(公告)号:US09067864B2
公开(公告)日:2015-06-30
申请号:US11881014
申请日:2007-07-25
申请人: Knut Sommer , Ido Schwarz , Susanne Buchholz , Franz-Ulrich Von Gehlen , Andre Lago , Karl-Heinz Wilke , Holger Orzesek , Hans-Georg Pirkl , Peter Lehner , Stephan Schubert
发明人: Knut Sommer , Ido Schwarz , Susanne Buchholz , Franz-Ulrich Von Gehlen , Andre Lago , Karl-Heinz Wilke , Holger Orzesek , Hans-Georg Pirkl , Peter Lehner , Stephan Schubert
IPC分类号: C07C209/00 , C07C209/36
CPC分类号: C07C209/36 , Y02P20/128 , C07C211/46
摘要: Aromatic amines are produced by adiabatic hydrogenation of nitroaromatic compounds in the gas phase on one or more fixed catalysts. The nitroaromatic reactant is passed over the catalyst under pressure and at elevated temperature with hydrogen, water, optionally nitrogen and substantially in the absence of the aromatic amine produced from the nitroaromatic.
摘要翻译: 芳族胺通过在一个或多个固定催化剂上的气相中的硝基芳族化合物的绝热氢化产生。 硝基芳族反应物在压力和升高的温度下在氢气,水,任选的氮气和基本上不存在由硝基芳族化合物产生的芳族胺的情况下通过催化剂。
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5.
公开(公告)号:US09266094B2
公开(公告)日:2016-02-23
申请号:US14240056
申请日:2012-08-29
申请人: Michael Merkel , Karl-Heinz Wilke , Peter Lehner
发明人: Michael Merkel , Karl-Heinz Wilke , Peter Lehner
IPC分类号: B01J23/648 , C07C209/36 , B01J37/02 , B01J23/62 , B01J23/64 , B01J35/00 , B01J35/10 , B01J27/055 , B01J27/10 , B01J37/16 , B01J37/18
CPC分类号: B01J23/6482 , B01J23/62 , B01J23/64 , B01J27/055 , B01J27/10 , B01J35/002 , B01J35/1009 , B01J35/1014 , B01J37/0205 , B01J37/0207 , B01J37/16 , B01J37/18 , B01J2523/00 , C07C209/36 , Y02P20/52 , B01J2523/13 , B01J2523/44 , B01J2523/55 , B01J2523/824 , C07C211/46
摘要: The present invention relates to a catalyst comprising a ceramic support with a BET surface area of less than 40 m2/g and (a) 1.0 to 100 g of at least one metal of groups 8 to 12 of the periodic table of the elements, (b) 1.0 g to 100 g of at least one metal of groups 4 to 6 and 12 of the periodic table of the elements and (c) 1.0 g to 100 g of at least one metal of groups 14 and 15 of the periodic table of the elements per liter of bulk volume of the ceramic support, wherein the catalyst is additionally doped with (d) potassium in a content of from 0.0050% by weight to 0.20% by weight, based on the total weight of the catalyst. The present invention also provides the use of such a catalyst in the catalytic gas phase hydrogenation of nitroaromatics.
摘要翻译: 本发明涉及一种催化剂,其包含BET表面积小于40m 2 / g的陶瓷载体和(a)元素周期表中至少一种第8至12族金属的至少一种金属的至少一种金属( b)将1.0g至100g元素周期表第4至6和12族的至少一种金属和(c)1.0g至100g元素周期表第14和15族的至少一种金属 每升体积的陶瓷载体的元素,其中催化剂另外掺有(d)含量为0.0050重量%至0.20重量%的钾,基于催化剂的总重量。 本发明还提供了这种催化剂在硝基芳族化合物的催化气相氢化中的用途。
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6.
公开(公告)号:US20140309457A1
公开(公告)日:2014-10-16
申请号:US14240056
申请日:2012-08-29
申请人: Michael Merkel , Karl-Heinz Wilke , Peter Lehner
发明人: Michael Merkel , Karl-Heinz Wilke , Peter Lehner
IPC分类号: B01J23/648 , B01J27/10 , C07C209/36 , B01J27/055
CPC分类号: B01J23/6482 , B01J23/62 , B01J23/64 , B01J27/055 , B01J27/10 , B01J35/002 , B01J35/1009 , B01J35/1014 , B01J37/0205 , B01J37/0207 , B01J37/16 , B01J37/18 , B01J2523/00 , C07C209/36 , Y02P20/52 , B01J2523/13 , B01J2523/44 , B01J2523/55 , B01J2523/824 , C07C211/46
摘要: The present invention relates to a catalyst comprising a ceramic support with a BET surface area of less than 40 m2/g and (a) 1.0 to 100 g of at least one metal of groups 8 to 12 of the periodic table of the elements, (b) 1.0 g to 100 g of at least one metal of groups 4 to 6 and 12 of the periodic table of the elements and (c) 1.0 g to 100 g of at least one metal of groups 14 and 15 of the periodic table of the elements per litre of bulk volume of the ceramic support, wherein the catalyst is additionally doped with (d) potassium in a content of from 0.0050% by weight to 0.20% by weight, based on the total weight of the catalyst. The present invention also provides the use of such a catalyst in the catalytic gas phase hydrogenation of nitroaromatics.
摘要翻译: 本发明涉及一种催化剂,其包含BET表面积小于40m 2 / g的陶瓷载体和(a)元素周期表中至少一种第8至12族金属的至少一种金属的至少一种金属( b)将1.0g至100g元素周期表第4至6和12族的至少一种金属和(c)1.0g至100g元素周期表第14和15族的至少一种金属 每升体积的陶瓷载体的元素,其中催化剂另外掺有(d)含量为0.0050重量%至0.20重量%的钾,基于催化剂的总重量。 本发明还提供了这种催化剂在硝基芳族化合物的催化气相氢化中的用途。
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公开(公告)号:US20100280271A1
公开(公告)日:2010-11-04
申请号:US12765953
申请日:2010-04-23
申请人: Knut Sommer , Karl-Heinz Wilke , Peter Lehner , Franz-Ulrich Gehlen , Leslaw Mleczko , Stephan Schubert , Rainer Bellinghausen , Evin Hizaler Hoffmann
发明人: Knut Sommer , Karl-Heinz Wilke , Peter Lehner , Franz-Ulrich Gehlen , Leslaw Mleczko , Stephan Schubert , Rainer Bellinghausen , Evin Hizaler Hoffmann
IPC分类号: C07C209/36
CPC分类号: C07C209/36 , C07C211/46
摘要: Nitroaromatic compounds are hydrogenated in the gas phase to form aromatic amines with hydrogen in the presence of one or more catalysts arranged in stationary or virtually stationary beds in a reactor. In this process, the catalyst in the reactor is at least partly replaced continuously or at periodic intervals. At least 10% of the catalyst is replaced within each 20 day interval subsequent to start up of the reaction.
摘要翻译: 硝基芳族化合物在气相中被氢化,以在一个或多个催化剂存在下在氢气中形成芳族胺,所述催化剂布置在反应器中的静止或实际静止的床中。 在该方法中,反应器中的催化剂至少部分地被连续地或以周期性间隔替代。 在反应开始后的每20天间隔内,至少10%的催化剂被更换。
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公开(公告)号:US20070203364A1
公开(公告)日:2007-08-30
申请号:US11706444
申请日:2007-02-15
申请人: Markus Dugal , Franz-Ulrich Von Gehlen , Stefan Wershofen , Andre Lago , Peter Lehner , Benie Marotz
发明人: Markus Dugal , Franz-Ulrich Von Gehlen , Stefan Wershofen , Andre Lago , Peter Lehner , Benie Marotz
IPC分类号: C07C209/36
CPC分类号: C07C209/36 , C07C209/78 , C07C209/84 , C07C263/10 , C07C265/14 , C07C211/46
摘要: Crude aniline is produced by hydrogenating nitrobenzene in the presence of a catalyst. This crude aniline is then purified by means of a single-step or multi-step distillation process in which aqueous alkali metal hydroxide solution is added to the crude aniline prior to distillation and/or during distillation of the crude aniline.
摘要翻译: 通过在催化剂存在下氢化硝基苯来制备粗苯胺。 然后通过单阶段或多步蒸馏方法纯化该粗苯胺,其中在蒸馏之前和/或在蒸馏粗苯胺期间将粗碱苯胺加入到粗苯胺中。
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公开(公告)号:US20100324336A1
公开(公告)日:2010-12-23
申请号:US12814536
申请日:2010-06-14
申请人: Knut Sommer , Peter Lehner , Andre Lago
发明人: Knut Sommer , Peter Lehner , Andre Lago
IPC分类号: C07C209/36 , C07C209/84
CPC分类号: C07C209/84 , C07C211/46
摘要: Aromatic amines produced by hydrogenation of the corresponding nitroaromatic compounds are purified in a specified manner. In the purification procedure, the particular amine is initially mixed with an aqueous solution of a base. The organic and aqueous phases are then separated by adding excess water.
摘要翻译: 通过相应的硝基芳族化合物的氢化生产的芳族胺以指定的方式纯化。 在纯化过程中,特定的胺最初与碱的水溶液混合。 然后通过加入过量的水分离有机相和水相。
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公开(公告)号:US07692042B2
公开(公告)日:2010-04-06
申请号:US11706444
申请日:2007-02-15
申请人: Markus Dugal , Franz-Ulrich Von Gehlen , Stefan Wershofen , Andre Lago , Peter Lehner , Benie Marotz
发明人: Markus Dugal , Franz-Ulrich Von Gehlen , Stefan Wershofen , Andre Lago , Peter Lehner , Benie Marotz
IPC分类号: C07C29/86
CPC分类号: C07C209/36 , C07C209/78 , C07C209/84 , C07C263/10 , C07C265/14 , C07C211/46
摘要: Crude aniline is produced by hydrogenating nitrobenzene in the presence of a catalyst. This crude aniline is then purified by means of a single-step or multi-step distillation process in which aqueous alkali metal hydroxide solution is added to the crude aniline prior to distillation and/or during distillation of the crude aniline.
摘要翻译: 通过在催化剂存在下氢化硝基苯来制备粗苯胺。 然后通过单阶段或多步蒸馏方法纯化该粗苯胺,其中在蒸馏之前和/或在蒸馏粗苯胺期间将粗碱苯胺加入到粗苯胺中。
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