公开(公告)号：US20070232827A1

公开(公告)日：2007-10-04

申请号：US11569445

申请日：2002-05-21

申请人： Andreas Wolfert ,  Hans-Jurgen Pallasch ,  Eckhard Stroefer ,  Ulrich Penzel ,  Filip Deberdt

发明人： Andreas Wolfert ,  Hans-Jurgen Pallasch ,  Eckhard Stroefer ,  Ulrich Penzel ,  Filip Deberdt

IPC分类号： C07C263/10

CPC分类号： C07C263/10 ,  C07C265/12

摘要： A process for the preparation of isocyanates by reacting amines with phosgene, the phosgene-containing stream of starting materials (i) being substantially free of isocyanates and (ii) having a mass content of hydrogen chloride (referred to below as HCl) of less than 0.4% by mass, and a production plant for carrying out the process according to the invention.

摘要翻译： 一种通过胺与光气反应制备异氰酸酯的方法，含有光气的起始原料物流（i）基本上不含异氰酸酯，和（ii）质量含量的氯化氢（以下称为HCl）小于 0.4质量％，以及用于实施本发明方法的生产设备。

公开(公告)号：US20060116529A1

公开(公告)日：2006-06-01

申请号：US10538474

申请日：2003-12-16

申请人： Andreas Wolfert ,  Hans-Jurgen Pallasch ,  Eckhard Stroefer ,  Ulrich Penzel ,  Filip Deberdt

发明人： Andreas Wolfert ,  Hans-Jurgen Pallasch ,  Eckhard Stroefer ,  Ulrich Penzel ,  Filip Deberdt

IPC分类号： C07C263/10

CPC分类号： C07C263/10 ,  C07C265/14

摘要： The invention provides a process for preparing isocyanates by reacting amines with phosgene, wherein the phosgene-containing feed stream has a hydrogen chloride content of more than 0.8% by mass.

摘要翻译： 本发明提供了一种通过使胺与光气反应来制备异氰酸酯的方法，其中含光气的进料流的氯化氢含量大于0.8质量％。

公开(公告)号：US20060011463A1

公开(公告)日：2006-01-19

申请号：US10539610

申请日：2003-12-13

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

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

IPC分类号： B01D3/34 ,  C07C263/00 ,  B01D3/10

CPC分类号： C07C263/10 ,  C07C263/20 ,  Y10S203/08 ,  C07C265/14

摘要： The invention relates to a process for preparing isocyanates by reaction of amines with phosgene in the presence of inert organic solvents in a reactor and subsequent work-up of the reaction mixture leaving the reactor, wherein the solvent is separated off in a two-stage or multistage, preferably two-stage, distillation process in which the solvent is separated off at a pressure of 0.1-15 bar in a first apparatus and at 1-900 mbar in a second apparatus or further apparatuses, with the heat of condensation of the solvent vapor from the first apparatus being used for partial or complete vaporization of solvent in the second apparatus.

摘要翻译： 本发明涉及通过在反应器中在惰性有机溶剂存在下胺与光气反应制备异氰酸酯的方法，随后后处理离开反应器的反应混合物，其中将溶剂分离成两段或 多级，优选两级蒸馏方法，其中溶剂在第一装置中在0.1-15巴的压力下分离，在第二装置或其它装置中以1-900毫巴分离，其中溶剂的冷凝热 来自第一装置的蒸气用于在第二装置中部分或完全蒸发溶剂。

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.

公开(公告)号：US20060089507A1

公开(公告)日：2006-04-27

申请号：US10538119

申请日：2003-12-13

申请人： Martin Sohn ,  Eckhard Stroefer ,  Filip Nevejans ,  Ulrich Penzel ,  Hans-Jurgen Pallasch ,  Michael Sander ,  Hans Schwarz ,  Wolfgang Mackenroth

发明人： Martin Sohn ,  Eckhard Stroefer ,  Filip Nevejans ,  Ulrich Penzel ,  Hans-Jurgen Pallasch ,  Michael Sander ,  Hans Schwarz ,  Wolfgang Mackenroth

IPC分类号： C07C263/04

CPC分类号： C07C263/20 ,  C07C263/10 ,  C07C265/14

摘要： The present invention relates to a process for preparing isocyanates by reaction of amines with phosgene in a reactor and subsequent separation of the isocyanate from the reaction mixture leaving the reactor and purification of the isocyanate, wherein the separation and purification of the isocyanate is carried out in a column having a pressure at the top of 1-950 mbar, preferably 5-50 mbar, particularly preferably 10-20 mbar, and a temperature at the bottom of 90-250° C., preferably 120-170° C., particularly preferably 130-150° C., and the pure isocyanate stream is preferably taken off in liquid or gaseous form at a side offtake of the column.

摘要翻译： 本发明涉及通过在反应器中将胺与光气反应制备异氰酸酯的方法，随后将异氰酸酯从离开反应器的反应混合物中分离并纯化异氰酸酯，其中异氰酸酯的分离和纯化在 具有顶部压力为1-950毫巴，优选5-50毫巴，特别优选10-20毫巴，塔底温度为90-250℃，优选120-170℃的塔，特别是 优选130-150℃，并且纯异氰酸酯流优选在液体或气体形式的塔的出口侧取出。

公开(公告)号：US07584629B2

公开(公告)日：2009-09-08

申请号：US10538759

申请日：2003-12-13

申请人： Martin Sohn ,  Eckhard Stroefer ,  Filip Nevejans ,  Ulrich Penzel ,  Hans-Juergen Pallasch ,  Peter Van Den Abeel ,  Filip Deberdt ,  Jan D. Jacobs ,  Wolfgang Mackenroth

发明人： Martin Sohn ,  Eckhard Stroefer ,  Filip Nevejans ,  Ulrich Penzel ,  Hans-Juergen Pallasch ,  Peter Van Den Abeel ,  Filip Deberdt ,  Jan D. Jacobs ,  Wolfgang Mackenroth

IPC分类号： F25J3/00 ,  C07C69/96

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.

摘要翻译： 本发明涉及一种部分或完全分离包含氯化氢和光气的混合物的方法，可能是溶剂和可能的低沸点和惰性物质，通常通过胺与光气的反应在异氰酸酯的制备中获得，其包括首先进行 光气的部分或完全缩合，然后在塔中进行蒸馏或汽提步骤以从底部产物光气中除去氯化氢，随后通过工艺溶剂擦洗顶部产物氯化氢以在该方法中吸收光气 溶剂。 随后可以通过在活性炭上的吸附或通过另一种合适的方法进行后期纯化以除去溶剂残余物。

公开(公告)号：US07524405B2

公开(公告)日：2009-04-28

申请号：US10539610

申请日：2003-12-13

申请人： Martin Sohn ,  Eckhard Stroefer ,  Filip Nevejans ,  Ulrich Penzel ,  Hans-Juergen Pallasch ,  Peter Van Den Abeel ,  Filip Deberdt ,  Jan D. Jacobs ,  Wolfgang Mackenroth

发明人： Martin Sohn ,  Eckhard Stroefer ,  Filip Nevejans ,  Ulrich Penzel ,  Hans-Juergen Pallasch ,  Peter Van Den Abeel ,  Filip Deberdt ,  Jan D. Jacobs ,  Wolfgang Mackenroth

IPC分类号： B01D3/00 ,  C07C263/20

CPC分类号： C07C263/10 ,  C07C263/20 ,  Y10S203/08 ,  C07C265/14

摘要： The invention relates to a process for preparing isocyanates by reaction of amines with phosgene in the presence of inert organic solvents in a reactor and subsequent work-up of the reaction mixture leaving the reactor, wherein the solvent is separated off in a two-stage or multistage, preferably two-stage, distillation process in which the solvent is separated off at a pressure of 0.1-15 bar in a first apparatus and at 1-900 mbar in a second apparatus or further apparatuses, with the heat of condensation of the solvent vapor from the first apparatus being used for partial or complete vaporization of solvent in the second apparatus.

摘要翻译： 本发明涉及通过在反应器中在惰性有机溶剂存在下胺与光气反应制备异氰酸酯的方法，随后后处理离开反应器的反应混合物，其中将溶剂分离成两段或 多级，优选两级蒸馏方法，其中溶剂在第一装置中在0.1-15巴的压力下分离，在第二装置或其它装置中以1-900毫巴分离，其中溶剂的冷凝热 来自第一装置的蒸气用于在第二装置中部分或完全蒸发溶剂。

公开(公告)号：US20110251425A1

公开(公告)日：2011-10-13

申请号：US13057869

申请日：2009-08-06

申请人： Ulrich Penzel ,  Torsten Mattke ,  Andreas Wolfert ,  Johannes Jocobs ,  Tsung-Chieh Cheng ,  Kerstin Heinen ,  Eckhard Stroefer ,  Stefan Maixner ,  Wolfgang Mackenroth ,  Christian Tragut ,  Kai Thiele ,  Myung Un Won

发明人： Ulrich Penzel ,  Torsten Mattke ,  Andreas Wolfert ,  Johannes Jocobs ,  Tsung-Chieh Cheng ,  Kerstin Heinen ,  Eckhard Stroefer ,  Stefan Maixner ,  Wolfgang Mackenroth ,  Christian Tragut ,  Kai Thiele ,  Myung Un Won

IPC分类号： C07C263/10 ,  B01J19/00

CPC分类号： C07C263/10 ,  C07C265/14

摘要： The invention relates to a process for preparing isocyanates by reacting the corresponding amines with phosgene in the liquid phase, if appropriate in the presence of at least one inert medium, in which the amine and the phosgene are first mixed in a mixing chamber (1) to give a reaction mixture and the reaction mixture is fed to a reactor, the amine being added through an orifice (3) arranged coaxially to the mixing chamber (1) and the phosgene being added through feed orifices (5) in at least two planes (7, 9) arranged at right angles to the axis (11) of the mixing chamber (1), or the phosgene being added through the orifice (3) arranged coaxially to the mixing chamber and the amine through the feed orifices (5) in at least two planes (7, 9) arranged at right angles to the axis (11) of the mixing chamber (1). At least one plane (9) is arranged upstream and at least one plane (7) downstream of the orifice (3) arranged coaxially to the mixing chamber (1) in main flow direction of the reaction mixture. The mean residence time of the reaction mixture in the mixing chamber (1) is not more than 20 ms.

摘要翻译： 本发明涉及通过使相应的胺与液相中的光气反应制备异氰酸酯的方法，如果合适的话，在至少一种惰性介质存在下，其中胺和光气首先在混合室（1）中混合， 得到反应混合物并将反应混合物加入到反应器中，通过与混合室（1）同轴布置的孔口（3）加入胺，并且通过进料孔（5）在至少两个平面中添加光气 （7,9），其与所述混合室（1）的轴线（11）成直角排列，或者通过所述孔（3）加入的光气通过所述孔（3）同轴地配置到所述混合室，所述胺通过所述进料孔（5） 在与所述混合室（1）的轴线（11）成直角布置的至少两个平面（7,9）中。 至少一个平面（9）布置在上游，并且孔（3）下游的至少一个平面（7）在反应混合物的主流动方向上与混合室（1）同轴布置。 反应混合物在混合室（1）中的平均停留时间不超过20ms。

公开(公告)号：US08829232B2

公开(公告)日：2014-09-09

申请号：US13057869

申请日：2009-08-06

申请人： Ulrich Penzel ,  Torsten Mattke ,  Andreas Wölfert ,  Johannes Jacobs ,  Tsung-Chieh Cheng ,  Kerstin Heinen ,  Eckhard Stroefer ,  Stefan Maixner ,  Wolfgang Mackenroth ,  Christian Tragut ,  Kai Thiele ,  Myung Un Won

发明人： Ulrich Penzel ,  Torsten Mattke ,  Andreas Wölfert ,  Johannes Jacobs ,  Tsung-Chieh Cheng ,  Kerstin Heinen ,  Eckhard Stroefer ,  Stefan Maixner ,  Wolfgang Mackenroth ,  Christian Tragut ,  Kai Thiele ,  Myung Un Won

IPC分类号： C07C263/00 ,  C07C263/10

CPC分类号： C07C263/10 ,  C07C265/14

摘要： The invention relates to a process for preparing isocyanates by reacting the corresponding amines with phosgene in the liquid phase, if appropriate in the presence of at least one inert medium, in which the amine and the phosgene are first mixed in a mixing chamber (1) to give a reaction mixture and the reaction mixture is fed to a reactor, the amine being added through an orifice (3) arranged coaxially to the mixing chamber (1) and the phosgene being added through feed orifices (5) in at least two planes (7, 9) arranged at right angles to the axis (11) of the mixing chamber (1), or the phosgene being added through the orifice (3) arranged coaxially to the mixing chamber and the amine through the feed orifices (5) in at least two planes (7, 9) arranged at right angles to the axis (11) of the mixing chamber (1). At least one plane (9) is arranged upstream and at least one plane (7) downstream of the orifice (3) arranged coaxially to the mixing chamber (1) in main flow direction of the reaction mixture. The mean residence time of the reaction mixture in the mixing chamber (1) is not more than 20 ms.

摘要翻译： 本发明涉及通过使相应的胺与液相中的光气反应制备异氰酸酯的方法，如果合适的话，在至少一种惰性介质存在下，其中胺和光气首先在混合室（1）中混合， 得到反应混合物并将反应混合物加入到反应器中，通过与混合室（1）同轴设置的孔口（3）加入胺，通过进料孔（5）在至少两个平面中加入光气 （7,9），其与所述混合室（1）的轴线（11）成直角排列，或者通过所述孔（3）加入的光气通过所述孔（3）同轴地配置到所述混合室，所述胺通过所述进料孔（5） 在与所述混合室（1）的轴线（11）成直角布置的至少两个平面（7,9）中。 至少一个平面（9）布置在上游，并且孔（3）下游的至少一个平面（7）在反应混合物的主流动方向上与混合室（1）同轴布置。 反应混合物在混合室（1）中的平均停留时间不超过20ms。

公开(公告)号：US08759569B2

公开(公告)日：2014-06-24

申请号：US13380680

申请日：2010-06-16

申请人： Heiner Schelling ,  Ulrich Penzel ,  Eckhard Stroefer ,  Matthias Eiermann ,  Jon S. Speier ,  Kai Thiele ,  Michael Bock

发明人： Heiner Schelling ,  Ulrich Penzel ,  Eckhard Stroefer ,  Matthias Eiermann ,  Jon S. Speier ,  Kai Thiele ,  Michael Bock

IPC分类号： C07C263/00

CPC分类号： C07C263/10 ,  C07C265/14

摘要： The present invention relates to a process for the production of isocyanates, preferably diisocyanates and polyisocyanates of the diphenylmethane series (MDI), by reacting an amine with phosgene in the liquid phase or in the gas phase to form the corresponding isocyanates, subsequent removal of the solvent in at least two steps to obtain at least two solvent streams, individual treatment of the at least two solvent streams, and recirculation of at least a portion of the solvent streams.

摘要翻译： 本发明涉及通过使胺与气相或气相中的光气反应以形成相应的异氰酸酯来制备二异氰酸酯，优选二苯甲烷系列（MDI）的二异氰酸酯和多异氰酸酯的方法，随后除去 溶剂至少两个步骤以获得至少两种溶剂流，对至少两种溶剂流进行单独处理，以及再循环至少一部分溶剂流。