公开(公告)号：US06831192B2

公开(公告)日：2004-12-14

申请号：US10152489

申请日：2002-05-21

申请人： Eckhard Ströfer ,  Jan Jacobs ,  Wilfried Seyfert ,  Hans Volkmar Schwarz ,  Olaf Schweers ,  Volker Scharr ,  Ulrich Penzel

发明人： Eckhard Ströfer ,  Jan Jacobs ,  Wilfried Seyfert ,  Hans Volkmar Schwarz ,  Olaf Schweers ,  Volker Scharr ,  Ulrich Penzel

IPC分类号： C07C26310

CPC分类号： C07C209/78 ,  C07C263/10 ,  C07C211/50 ,  C07C265/12 ,  C07C265/14

摘要： A process for preparing methylenedianiline by reacting aniline with formaldehyde in the presence of acid catalysts comprising, in a semicontinuous process, introducing aniline with or without acid catalyst, feeding formaldehyde with or without acid catalyst through a mixing element into a circuit in which aniline with or without acid catalyst and with or without previously added formaldehyde is circulated and, after feeding in at least 50% of the total amount of formaldehyde to be fed in, heating the reaction mixture to a temperature above 75° C. In addition, the invention relates to a process for preparing polyisocyanates by phosgenation of amines obtainable in this manner and to the polyisocyanates obtainable by this process.

摘要翻译： 一种在酸催化剂存在下使苯胺与甲醛反应制备亚甲基二苯胺的方法，该方法包括在半连续方法中引入具有或不具有酸催化剂的苯胺，通过混合元件将甲醛与/或不含酸催化剂进料到其中具有或 没有酸催化剂和有或没有预先加入的甲醛循环，并且在进料至少要加入的甲醛总量的50％之后，将反应混合物加热至高于75℃。此外，本发明涉及 涉及通过以这种方式获得的胺的光气化制备多异氰酸酯的方法以及通过该方法可获得的多异氰酸酯。

公开(公告)号：US06433219B1

公开(公告)日：2002-08-13

申请号：US09601097

申请日：2000-09-08

申请人： Eckhard Ströfer ,  Jan Jacobs ,  Wilfried Seyfert ,  Hans Volkmar Schwarz ,  Olaf Schweers ,  Volker Scharr ,  Ulrich Penzel

发明人： Eckhard Ströfer ,  Jan Jacobs ,  Wilfried Seyfert ,  Hans Volkmar Schwarz ,  Olaf Schweers ,  Volker Scharr ,  Ulrich Penzel

IPC分类号： C07C26310

CPC分类号： C07C209/78 ,  C07C263/10 ,  C07C211/50 ,  C07C265/12 ,  C07C265/14

摘要： A process for preparing methylenedianiline by reacting aniline with formaldehyde in the presence of acid catalysts comprising, in a semicontinuous process, introducing aniline with or without acid catalyst, feeding formaldehyde with or without acid catalyst through a mixing element into a circuit in which aniline with or without acid catalyst and with or without previously added formaldehyde is circulated and, after feeding in at least 50% of the total amount of formaldehyde to be fed in, heating the reaction mixture to a temperature above 75° C. In addition, the invention relates to a process for preparing polyisocyanates by phosgenation of amines obtainable in this manner and to the polyisocyanates obtainable by this process.

摘要翻译： 一种在酸催化剂存在下使苯胺与甲醛反应制备亚甲基二苯胺的方法，该方法包括在半连续方法中引入具有或不具有酸催化剂的苯胺，通过混合元件将甲醛与/或不含酸催化剂进料到其中具有或 没有酸催化剂和有或没有预先加入的甲醛循环，并且在进料至少要供入的甲醛总量的50％之后，将反应混合物加热到高于75℃的温度。另外，本发明涉及 涉及通过以这种方式获得的胺的光气化制备多异氰酸酯的方法以及通过该方法可获得的多异氰酸酯。

公开(公告)号：US07230130B2

公开(公告)日：2007-06-12

申请号：US10843046

申请日：2004-05-11

申请人： Eckhard Ströfer ,  Jan Jacobs ,  Wilfried Seyfert ,  Hans Volkmar Schwarz ,  Olaf Schweers ,  Volker Scharr ,  Ulrich Penzel

发明人： Eckhard Ströfer ,  Jan Jacobs ,  Wilfried Seyfert ,  Hans Volkmar Schwarz ,  Olaf Schweers ,  Volker Scharr ,  Ulrich Penzel

IPC分类号： C07C263/10

CPC分类号： C07C209/78 ,  C07C263/10 ,  C07C211/50 ,  C07C265/12 ,  C07C265/14

摘要： A process for preparing methylenedianiline by reacting aniline with formaldehyde in the presence of acid catalysts comprising, in a semicontinuous process, introducing aniline with or without acid catalyst, feeding formaldehyde with or without acid catalyst through a mixing element into a circuit in which aniline with or without acid catalyst and with or without previously added formaldehyde is circulated and, after feeding in at least 50% of the total amount of formaldehyde to be fed in, heating the reaction mixture to a temperature above 75° C.In addition, the invention relates to a process for preparing polyisocyanates by phosgenation of amines obtainable in this manner and to the polyisocyanates obtainable by this process.

摘要翻译： 一种在酸催化剂存在下使苯胺与甲醛反应制备亚甲基二苯胺的方法，该方法包括在半连续方法中引入具有或不具有酸催化剂的苯胺，通过混合元件将甲醛与/或不含酸催化剂进料到其中具有或 没有酸催化剂和有或没有预先加入的甲醛循环，并且在进料至少要供入的甲醛总量的50％之后，将反应混合物加热到高于75℃的温度。另外，本发明涉及 涉及通过以这种方式获得的胺的光气化制备多异氰酸酯的方法以及通过该方法可获得的多异氰酸酯。

公开(公告)号：US06576788B1

公开(公告)日：2003-06-10

申请号：US09673326

申请日：2000-10-13

申请人： Ulrich Penzel ,  Volker Scharr ,  Dieter Starosta ,  Hilmar Boesel ,  Eckhard Ströfer ,  Joachim Pfeffinger ,  Frank Poplow ,  Jürgen Dosch ,  Hans Volkmar Schwarz ,  Fritz Näumann ,  Peter van den Abeel ,  Jan Jacobs ,  Filip Nevejans ,  Willy van Pee

发明人： Ulrich Penzel ,  Volker Scharr ,  Dieter Starosta ,  Hilmar Boesel ,  Eckhard Ströfer ,  Joachim Pfeffinger ,  Frank Poplow ,  Jürgen Dosch ,  Hans Volkmar Schwarz ,  Fritz Näumann ,  Peter van den Abeel ,  Jan Jacobs ,  Filip Nevejans ,  Willy van Pee

IPC分类号： C07C24914

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

摘要： In a process for preparing mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates having a reduced content of chlorinated by-products and a reduced iodine color number by two-stage reaction of the corresponding mixtures of diphenylmethanediamines and polyphenylpolymethylenepolyamines with phosgene in the presence of at least one inert organic solvent at elevated temperature, separation of the excess phosgene and solvent after the phosgenation is complete and thermal treatment of the reaction product, the mass ratios of phosgene to hydrogen chloride in the residence time apparatus of the second stage of the phosgenation are at the same time 10-30:1 in the liquid phase and 1-10:1 in the gas phase.

摘要翻译： 在二氯甲烷二异氰酸酯和多苯基聚亚甲基多异氰酸酯的混合物的制备方法中，其中氯化副产物含量降低，碘色数降低，二苯基甲烷二胺与多苯基多亚甲基多胺与光气的相应混合物在至少一种惰性的存在下进行两步反应 高温下的有机溶剂，光气化后过剩的光气和溶剂的分离完成，反应产物的热处理，光气化第二阶段的停留时间装置中光气与氯化氢的质量比相同 时间为10-30：1，液相为1-10：1。

公开(公告)号：US20050014975A1

公开(公告)日：2005-01-20

申请号：US10843046

申请日：2004-05-11

申请人： Eckhard Strofer ,  Jan Jacobs ,  Wilfried Seyfert ,  Hans Schwarz ,  Olaf Schweers ,  Volker Scharr ,  Ulrich Penzel

发明人： Eckhard Strofer ,  Jan Jacobs ,  Wilfried Seyfert ,  Hans Schwarz ,  Olaf Schweers ,  Volker Scharr ,  Ulrich Penzel

IPC分类号： C07B61/00 ,  C07C209/78 ,  C07C211/45 ,  C07C211/50 ,  C07C263/10 ,  C07C265/14 ,  C07

CPC分类号： C07C209/78 ,  C07C263/10 ,  C07C211/50 ,  C07C265/12 ,  C07C265/14

摘要： A process for preparing methylenedianiline by reacting aniline with formaldehyde in the presence of acid catalysts comprising, in a semicontinuous process, introducing aniline with or without acid catalyst, feeding formaldehyde with or without acid catalyst through a mixing element into a circuit in which aniline with or without acid catalyst and with or without previously added formaldehyde is circulated and, after feeding in at least 50% of the total amount of formaldehyde to be fed in, heating the reaction mixture to a temperature above 75° C. In addition, the invention relates to a process for preparing polyisocyanates by phosgenation of amines obtainable in this manner and to the polyisocyanates obtainable by this process.

摘要翻译： 一种在酸催化剂存在下使苯胺与甲醛反应制备亚甲基二苯胺的方法，该方法包括在半连续方法中引入具有或不具有酸催化剂的苯胺，通过混合元件将甲醛与/或不含酸催化剂进料到其中具有或 没有酸催化剂和有或没有预先加入的甲醛循环，并且在进料至少要供入的甲醛总量的50％之后，将反应混合物加热到高于75℃的温度。另外本发明涉及 涉及通过以这种方式获得的胺的光气化制备多异氰酸酯的方法以及通过该方法可获得的多异氰酸酯。

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：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：USD301527S

公开(公告)日：1989-06-13

申请号：US841695

申请日：1986-03-04

申请人： Jan Jacobs ,  Peter de Boer

设计人： Jan Jacobs ,  Peter de Boer

公开(公告)号：USD301526S

公开(公告)日：1989-06-13

申请号：US841694

申请日：1986-03-04

申请人： Jan Jacobs ,  Peter de Boer

设计人： Jan Jacobs ,  Peter de Boer

公开(公告)号：US20070010692A1

公开(公告)日：2007-01-11

申请号：US10564059

申请日：2004-06-25

申请人： Ulrich Steinbrenner ,  Eckhard Stroefer ,  Martin Sohn ,  Veronika Quasching ,  Helmut Mohwald ,  Kai Thiele ,  Filip Deberdt ,  Jan Jacobs ,  Rolf Pinkos

发明人： Ulrich Steinbrenner ,  Eckhard Stroefer ,  Martin Sohn ,  Veronika Quasching ,  Helmut Mohwald ,  Kai Thiele ,  Filip Deberdt ,  Jan Jacobs ,  Rolf Pinkos

IPC分类号： C07C209/24

CPC分类号： C07C209/86 ,  C07C209/78 ,  C07C211/50

摘要： A process is described for preparing diaminodiarylmethanes comprising the steps a) reacting an aromatic amine with a methylene-donating agent in the presence of homogeneous acid catalysts, b) removing the homogeneous acid catalyst from the reaction product, c) working up and purifying the reaction product, which comprises removing the homogeneous acid catalyst from the reaction mixture by adsorption to a solid adsorbent.

摘要翻译： 描述了制备二氨基二芳基甲烷的方法，包括以下步骤：a）在均相酸催化剂存在下使芳族胺与亚甲基供体试剂反应，b）从反应产物中除去均相酸催化剂，c）加工并纯化反应 产物，其包括通过吸附到固体吸附剂从反应混合物中除去均相酸催化剂。