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。

公开(公告)号：US20110295039A1

公开(公告)日：2011-12-01

申请号：US13109399

申请日：2011-05-17

申请人： Andreas Raichle ,  Joana Coelho Tsou ,  Samuel Neto ,  Ulrich Penzel ,  Steffen Oehlenschläger ,  Michael Zöllinger ,  Holgar Braunsberg ,  Stefanie Haase ,  Johannes Büttner

发明人： Andreas Raichle ,  Joana Coelho Tsou ,  Samuel Neto ,  Ulrich Penzel ,  Steffen Oehlenschläger ,  Michael Zöllinger ,  Holgar Braunsberg ,  Stefanie Haase ,  Johannes Büttner

IPC分类号： C07C209/36

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区域之间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。

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。

公开(公告)号：US07595424B2

公开(公告)日：2009-09-29

申请号：US11816658

申请日：2006-02-22

申请人： Dominic Vanoppen ,  Frederik Van Laar ,  Thomas Beuermann ,  Georg Krug ,  Steffen Oehlenschlaeger ,  Ekkehard Schwab ,  Hartwig Voss ,  Konrad Morgenschweis ,  Ulrich Penzel ,  Dietrich Tittelbach-Helmrich

发明人： Dominic Vanoppen ,  Frederik Van Laar ,  Thomas Beuermann ,  Georg Krug ,  Steffen Oehlenschlaeger ,  Ekkehard Schwab ,  Hartwig Voss ,  Konrad Morgenschweis ,  Ulrich Penzel ,  Dietrich Tittelbach-Helmrich

IPC分类号： C07C209/36

CPC分类号： B01J19/0033 ,  B01J8/006 ,  B01J8/007 ,  B01J8/22 ,  B01J19/002 ,  B01J2208/00637 ,  B01J2219/002 ,  B01J2219/00225 ,  B01J2219/00263 ,  C07C209/36 ,  G01N21/31 ,  C07C211/51

摘要： The invention relates to a process for preparing aromatic amines by hydrogenation of nitroaromatics in the presence of catalysts, in which a fluid reaction mixture which comprises amines and from which the catalysts are separated off is formed in a reactor. After the catalysts have been separated off, a measurement of the absorption of UV/VIS radiation by the reaction mixture is carried out to determine the concentration of nitro and nitroso compounds in the reaction mixture.

摘要翻译： 本发明涉及通过在催化剂存在下氢化硝基芳族化合物来制备芳族胺的方法，其中在反应器中形成包含胺并在其中分离催化剂的流体反应混合物。 催化剂分离后，进行反应混合物对UV / VIS辐射吸收的测定，以确定反应混合物中硝基和亚硝基化合物的浓度。

公开(公告)号：US07468461B2

公开(公告)日：2008-12-23

申请号：US12057617

申请日：2008-03-28

申请人： Frederik Van Laar ,  Ekkehard Schwab ,  Steffen Oehlenschlaeger ,  Hartwig Voss ,  Wolfgang Mackenroth ,  Konrad Morgenschweis ,  Ulrich Penzel ,  Bernd Weidner

发明人： Frederik Van Laar ,  Ekkehard Schwab ,  Steffen Oehlenschlaeger ,  Hartwig Voss ,  Wolfgang Mackenroth ,  Konrad Morgenschweis ,  Ulrich Penzel ,  Bernd Weidner

IPC分类号： C07C209/00 ,  B01J23/89

CPC分类号： C07C209/36 ,  B01J21/18 ,  B01J23/892 ,  B01J37/03 ,  B01J37/14 ,  B01J37/18 ,  C07C211/51

摘要： The present invention provides a process for hydrogenating aromatic nitro compounds to the corresponding amines in the presence of hydrogenation catalysts, which comprises using hydrogenation catalysts in which nickel and platinum are present on a support in the form of an alloy having an atomic ratio of nickel to platinum in the alloy of between 30:70 and 70:30.

摘要翻译： 本发明提供了在氢化催化剂存在下将芳族硝基化合物氢化成相应的胺的方法，该方法包括使用氢化催化剂，其中镍和铂以合金的形式存在于载体上，其原子比为镍与 合金中的铂在30:70和70:30之间。

公开(公告)号：US07091383B2

公开(公告)日：2006-08-15

申请号：US10500862

申请日：2003-01-30

申请人： Dominic Vanoppen ,  Ekkehard Schwab ,  Frederick van Laar ,  Hartwig Voss ,  Steffen Oehlenschlaeger ,  Wolfgang Mackenroth ,  Konrad Morgenschweis ,  Ulrich Penzel ,  Bernd Weidner

发明人： Dominic Vanoppen ,  Ekkehard Schwab ,  Frederick van Laar ,  Hartwig Voss ,  Steffen Oehlenschlaeger ,  Wolfgang Mackenroth ,  Konrad Morgenschweis ,  Ulrich Penzel ,  Bernd Weidner

IPC分类号： C07C209/36

CPC分类号： C07C209/36 ,  C07C209/86 ,  C07C211/50 ,  C07C211/46

摘要： The invention provides a process for preparing amines by catalytic hydrogenation of nitroaromatics and subsequent removal of the catalysts from the reaction mixture, which contains at least one aromatic amine and water, which comprises carrying out the removal of the catalysts by means of membrane filtration, which is carried out at a pressure on the suspension side of from 5 to 50 bar, a pressure difference between the suspension side and the permeate side of at least 0.3 bar and a flux rate on the suspension side of from 1 to 6 m/s.

摘要翻译： 本发明提供了一种通过硝基芳族化合物的催化氢化和随后从含有至少一种芳族胺和水的反应混合物中除去催化剂来制备胺的方法，该方法包括通过膜过滤进行催化剂的除去， 在悬浮侧的压力为5至50巴，悬浮液侧和渗透侧之间的压力差为至少0.3巴，悬浮侧的通量速率为1至6m / s。

公开(公告)号：US20100015012A1

公开(公告)日：2010-01-21

申请号：US12505238

申请日：2009-07-17

申请人： Dominic Vanoppen ,  Frederik Van Laar ,  Thomas Beuermann ,  Georg Krug ,  Steffen Oehlenschlager ,  Ekkehard Schwab ,  Hartwig Voss ,  Konrad Morgenschweis ,  Ulrich Penzel ,  Dietrich Tittelbach-Helmrich

发明人： Dominic Vanoppen ,  Frederik Van Laar ,  Thomas Beuermann ,  Georg Krug ,  Steffen Oehlenschlager ,  Ekkehard Schwab ,  Hartwig Voss ,  Konrad Morgenschweis ,  Ulrich Penzel ,  Dietrich Tittelbach-Helmrich

IPC分类号： B01J19/00

CPC分类号： B01J19/0033 ,  B01J8/006 ,  B01J8/007 ,  B01J8/22 ,  B01J19/002 ,  B01J2208/00637 ,  B01J2219/002 ,  B01J2219/00225 ,  B01J2219/00263 ,  C07C209/36 ,  G01N21/31 ,  C07C211/51

摘要： The invention relates to a process for preparing aromatic amines by hydrogenation of nitroaromatics in the presence of catalysts, in which a fluid reaction mixture which comprises amines and from which the catalysts are separated off is formed in a reactor. After the catalysts have been separated off, a measurement of the absorption of UV/VIS radiation by the reaction mixture is carried out to determine the concentration of nitro and nitroso compounds in the reaction mixture.

摘要翻译： 本发明涉及通过在催化剂存在下氢化硝基芳族化合物来制备芳族胺的方法，其中在反应器中形成包含胺并在其中分离催化剂的流体反应混合物。 催化剂分离后，进行反应混合物对UV / VIS辐射吸收的测定，以确定反应混合物中硝基和亚硝基化合物的浓度。

公开(公告)号：US07342134B2

公开(公告)日：2008-03-11

申请号：US10585648

申请日：2005-01-07

申请人： Carsten Knoesche ,  Martin Sohn ,  Ulrich Penzel ,  Hans-Juergen Pallasch ,  Gunter Georgi ,  Wolfgang Mackenroth ,  Hans Volkmar Schwarz ,  Stefan Maixner ,  Gerald Molz ,  Eckhard Stroefer

发明人： Carsten Knoesche ,  Martin Sohn ,  Ulrich Penzel ,  Hans-Juergen Pallasch ,  Gunter Georgi ,  Wolfgang Mackenroth ,  Hans Volkmar Schwarz ,  Stefan Maixner ,  Gerald Molz ,  Eckhard Stroefer

IPC分类号： C07C209/00

CPC分类号： C07C209/84 ,  C07C211/50

摘要： The invention relates to a process for distillatively preparing TDA from a reactant stream comprising TDA, high boilers and low boilers in a dividing wall column in which a dividing wall is disposed in the longitudinal direction of the column to form an upper combined column region (2), a lower combined column region (3), a feed section (4) having a rectifying section (5) and stripping section (6), and also a withdrawal section (7) having a rectifying section (9) and stripping section (8), which comprises the following steps: a. feeding the reactant stream (13) into the feed section (4) of the dividing wall column (1); b. drawing off a low boiler fraction via the top of the column (11); c. drawing off TDA via a side draw (14) in the withdrawal section (7) of the dividing wall column (1); d. drawing off a low boiler fraction via the bottom of the column (12).

摘要翻译： 本发明涉及从分隔壁塔中的TDA，高锅炉和低锅炉的反应物流中蒸馏制备TDA的方法，其中分隔壁沿塔的长度方向设置以形成上部组合塔区域（2 ），下组合柱区域（3），具有精馏段（5）和汽提区段（6）的进料段（4），以及具有整流段（9）和汽提段 8），其中包括以下步骤：a。 将反应物流（13）进料到分隔壁塔（1）的进料段（4）中; b。 通过塔（11）的顶部排出低沸点馏分; C。 通过分隔壁塔（1）的抽出部分（7）中的侧拉（14）抽出TDA; d。 通过柱（12）的底部排出低沸点馏分。

公开(公告)号：US20070083065A1

公开(公告)日：2007-04-12

申请号：US10585648

申请日：2005-01-07

申请人： Carsten Knoesche ,  Martin Sohn ,  Ulrich Penzel ,  Hans-Jurgen Pallach ,  Gunter Georgi ,  Wolfgang Mackenroth ,  Hans Schwarz ,  Stefan Maixner ,  Gerald Molz ,  Eckhard Stroefer

发明人： Carsten Knoesche ,  Martin Sohn ,  Ulrich Penzel ,  Hans-Jurgen Pallach ,  Gunter Georgi ,  Wolfgang Mackenroth ,  Hans Schwarz ,  Stefan Maixner ,  Gerald Molz ,  Eckhard Stroefer

IPC分类号： C07C209/84

CPC分类号： C07C209/84 ,  C07C211/50

摘要： The invention relates to a process for distillatively preparing TDA from a reactant stream comprising TDA, high boilers and low boilers in a dividing wall column in which a dividing wall is disposed in the longitudinal direction of the column to form an upper combined column region (2), a lower combined column region (3), a feed section (4) having a rectifying section (5) and stripping section (6), and also a withdrawal section (7) having a rectifying section (9) and stripping section (8), which comprises the following steps: a. feeding the reactant stream (13) into the feed section (4) of the dividing wall column (1); b. drawing off a low boiler fraction via the top of the column (11); c. drawing off TDA via a side draw (14) in the withdrawal section (7) of the dividing wall column (1); d. drawing off a low boiler fraction via the bottom of the column (12).

摘要翻译： 本发明涉及从分隔壁塔中的TDA，高锅炉和低锅炉的反应物流中蒸馏制备TDA的方法，其中分隔壁沿塔的长度方向设置以形成上部组合塔区域（2 ），下组合柱区域（3），具有精馏段（5）和汽提区段（6）的进料段（4），以及具有整流段（9）和汽提段 8），其中包括以下步骤：a。 将反应物流（13）进料到分隔壁塔（1）的进料段（4）中; b。 通过塔（11）的顶部排出低沸点馏分; C。 通过分隔壁塔（1）的抽出部分（7）中的侧拉（14）抽出TDA; d。 通过柱（12）的底部排出低沸点馏分。

公开(公告)号：US20060123842A1

公开(公告)日：2006-06-15

申请号：US10538759

申请日：2003-12-13

申请人： Martin Sohn ,  Eckhard Stroefer ,  Filip Nevejans ,  Ulrich Penzel ,  Hans-Jurgen Pallasch ,  Peter Abeel ,  Filip Deberdt ,  Jan Jacobs ,  Wolfgang Mackenroth

发明人： Martin Sohn ,  Eckhard Stroefer ,  Filip Nevejans ,  Ulrich Penzel ,  Hans-Jurgen Pallasch ,  Peter Abeel ,  Filip Deberdt ,  Jan Jacobs ,  Wolfgang Mackenroth

IPC分类号： F25J3/00

CPC分类号： C01B7/0731 ,  B01D53/002 ,  B01D2257/2045 ,  B01D2257/2064 ,  C01B7/0712 ,  C01B32/80 ,  C07C263/10 ,  Y02P20/154 ,  C07C265/14 ,  C07C265/12 ,  C07C265/10

摘要： The invention relates to a process for the partial or complete separation of a mixture comprising hydrogen chloride and phosgene, possibly solvents and possibly low boilers and inerts as are typically obtained in the preparation of isocyanates by reaction of amines with phosgene, which comprises firstly carrying out a partial or complete condensation of phosgene, then a distillation or stripping step in a column to remove the hydrogen chloride from the bottom product phosgene and subsequently a scrub of the top product hydrogen chloride by means of the process solvent to absorb the phosgene in the process solvent. An after-purification by means of adsorption on activated carbon or by another suitable method can subsequently be carried out to remove solvent residues.