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41. 发明授权

US08546606B2 Method for producing polyisocyanates 失效
标题翻译：聚异氰酸酯的制造方法
公开(公告)号：US08546606B2
公开(公告)日：2013-10-01
申请号：US10546890
申请日：2004-02-20
申请人： Andreas Brodhagen , Martin Sohn , Filip Nevejans , Eckhard Stroefer , Andreas Woelfert , Steffen Oehlenschlaeger
发明人： Andreas Brodhagen , Martin Sohn , Filip Nevejans , Eckhard Stroefer , Andreas Woelfert , Steffen Oehlenschlaeger
IPC分类号： C07C249/00
CPC分类号： B01J19/242 , B01J19/243 , B01J2219/00166 , B01J2219/182 , B01J2219/185 , B01J2219/187 , C07C263/10 , C07C265/14
摘要： The invention relates to a process for preparing polyisocyanates by reacting primary amines with phosgene, which comprises the steps a) mixing the amine with the phosgene, b) reacting the amine with the phosgene in a residence reactor and, if desired, c) transferring the output from the reactor of step b) into a distillation column, wherein the residence reactor in step b) is configured as a tube reactor.
摘要翻译：本发明涉及通过使伯胺与光气反应制备多异氰酸酯的方法，其包括以下步骤：a）将胺与光气混合，b）使胺与光气在停留反应器中反应，如果需要，c）将从步骤b）的反应器输出到蒸馏塔中，其中步骤b）中的停留反应器被配置为管式反应器。

42. 发明授权

US08519179B2 Method of measuring entry of water into phosgene-conducting plants 有权
标题翻译：测量进入光气植物的水的方法
公开(公告)号：US08519179B2
公开(公告)日：2013-08-27
申请号：US13380357
申请日：2010-06-23
申请人： Heiner Schelling , Ulrich Penzel , Eckhard Stroefer , Dirk Hablawetz , Dave Beckwith , Kai Thiele , Johannes Jacobs , Matthias Eiermann , Uwe Storck , Jon S. Speier , Thomas Grzanka , William Portwood
发明人： Heiner Schelling , Ulrich Penzel , Eckhard Stroefer , Dirk Hablawetz , Dave Beckwith , Kai Thiele , Johannes Jacobs , Matthias Eiermann , Uwe Storck , Jon S. Speier , Thomas Grzanka , William Portwood
IPC分类号： C07C263/00
CPC分类号： B01J19/002 , B01J2219/00006 , B01J2219/00186 , B01J2219/00202 , B01J2219/00209 , C07C263/10 , C07C2601/14 , G01N17/00 , C07C265/14
摘要： The invention relates to a method of measuring entry of water and resulting corrosion in plants for producing isocyanates by reacting phosgene with one or more primary amines in a solvent. The invention further relates to an apparatus for producing such isocyanates, in the work-up section of which probes for monitoring corrosion are arranged in defined places.
摘要翻译：本发明涉及一种测量植物中水分进入和产生腐蚀的方法，用于通过光气与一种或多种伯胺在溶剂中反应制备异氰酸酯。本发明还涉及一种用于制造这种异氰酸酯的装置，在其上述检查部分中，用于监测腐蚀的探针被布置在限定的位置。

43. 发明授权

US08372993B2 Method for separating trioxane from a trioxane/formaldehyde/water mixture by means of pressure change rectification 失效
标题翻译：通过压力变换精馏从三恶烷/甲醛/水混合物中分离三恶烷的方法
公开(公告)号：US08372993B2
公开(公告)日：2013-02-12
申请号：US12523741
申请日：2008-01-23
申请人： Neven Lang , Joachim Thiel , Eckhard Stroefer , Julia Kirschbaum , Markus Siegert
发明人： Neven Lang , Joachim Thiel , Eckhard Stroefer , Julia Kirschbaum , Markus Siegert
IPC分类号： C07D309/00
CPC分类号： C07D323/06 , B01D3/146 , B01D3/148
摘要： A process for removing trioxane from a use stream I of formaldehyde, trioxane and water, by a) providing a use stream I which comprises formaldehyde as the main component and trioxane and water as the secondary components, b) feeding the use stream I, a recycle stream V and a recycle stream VII which comprises formaldehyde as the main component and water and trioxane as the secondary components into a first distillation stage and distilling to obtain a stream II a steam III and formaldehyde as the and a steam X c) distilling the stream III, in a second distillation stage the pressure in the second distillation stage being from 0.1 to 15 bar higher than the pressure in the first distillation stage, to obtain a stream IV and the recycle stream V as the secondary components, d) feeding the stream X and if appropriate a stream IX into a third distillation stage and distilling at a pressure of from 1 to 10 bar to obtain a stream VI which consists substantially of water and a recycle stream VII which comprises formaldehyde as the main component and water and trioxane as the secondary components.
摘要翻译： a）从甲醛，三恶烷和水的使用流I中除去三恶烷的方法，通过a）提供包含甲醛作为主要成分的使用流I和作为次要组分的三恶烷和水，b）将使用流I，循环流V和以甲醛为主要成分的再循环流VII和作为次要组分的水和三恶烷作为第二蒸馏步骤，并蒸馏以获得流II，蒸汽III和甲醛以及蒸汽X c）蒸馏流III，在第二蒸馏阶段中，第二蒸馏阶段中的压力比第一蒸馏阶段中的压力高0.1至15巴，以获得流IV和再循环流V作为次要组分，d）将流X并且如果合适的话，将流IX转化成第三蒸馏级并在1至10巴的压力下蒸馏以获得基本上由水和循环流 VII，其中甲醛为主要成分，水和三恶烷为次要成分。

44. 发明授权

US08273915B2 Process for preparing isocyanates 有权
标题翻译：异氰酸酯的制备方法
公开(公告)号：US08273915B2
公开(公告)日：2012-09-25
申请号：US12675095
申请日：2008-08-27
申请人： Bernd Rumpf , Michael Bock , Martin Fiene , Eckhard Stroefer
发明人： Bernd Rumpf , Michael Bock , Martin Fiene , Eckhard Stroefer
IPC分类号： C07C263/00
CPC分类号： C07C263/10 , C07C263/20 , C07C265/14
摘要： The invention provides a process for preparing polyisocyanates, comprising the steps of a) reacting amines with phosgene, b) removing hydrogen chloride, excess phosgene and, if appropriate, the solvent from the reaction mixture, c) separating the liquid mixture from step b) into a liquid phase and a gaseous phase, d) working up the gaseous phase from step c) to give the polyisocyanate.
摘要翻译：本发明提供了一种制备多异氰酸酯的方法，包括以下步骤：a）使胺与光气反应，b）从反应混合物中除去氯化氢，过量的光气和（如果合适的话）溶剂; c）将液体混合物从步骤b）进入液相和气相，d）处理来自步骤c）的气相，得到多异氰酸酯。

45. 发明申请

US20120209024A1 PROCESS FOR COPRODUCING DI- AND/OR POLYISOCYANATES AND GLYCOLS 有权
标题翻译：用于制备二 - 和/或多烯酸酯和甘油的方法
公开(公告)号：US20120209024A1
公开(公告)日：2012-08-16
申请号：US13502763
申请日：2010-10-27
申请人： Michael Bock , Robert Baumann , Axel Franzke , Eckhard Stroefer , Gerhard Theis
发明人： Michael Bock , Robert Baumann , Axel Franzke , Eckhard Stroefer , Gerhard Theis
IPC分类号： C07C263/04
CPC分类号： C07C263/04 , C07C29/12 , C07C29/128 , C07C68/065 , C07C2601/14 , C07C69/96 , C07C265/12 , C07C265/14 , C07C31/202
摘要： A process for coproducing di- and/or polyisocyanates and glycols, comprising process stages A, B, C and E for preparing glycols and process stages A, C, D, E, F and G for preparing di- and/or polyisocyanates,which comprises accomplishing the material coupling via the separation of the reaction mixture obtained in process stage A into process stages B and C, by in process stage A, reacting an aqueous alkylene oxide with carbon dioxide to give a reaction mixture comprising alkylene carbonate, hydrolyzing a portion of the alkylene carbonate-comprising reaction mixture obtained in process stage A to glycol in process stage B, dewatering the remaining alkylene carbonate-comprising stream of the reaction mixture from process stage A in process stage C, in process stage D, synthesizing amine by hydrogenating an aromatic nitro compound or a nitrile, in process stage E, transesterifying the dewatered alkylene carbonate-comprising mixture from process stage C with a monohydroxy alcohol to give the corresponding dialkyl carbonate, obtaining glycol as a coproduct, in process stage F, reacting the dialkyl carbonate-comprising reaction mixture obtained in process stage E with the amine obtained in process stage D to a mixture comprising the corresponding mono-, di- and/or polycarbamate, which in process stage G is cleaved to obtain the corresponding di- and/or polyisocyanate.
摘要翻译：共聚产生二 - 和/或多异氰酸酯和二醇的方法，包括用于制备二元醇和工艺步骤A，C，D，E，F和G的制备二 - 和/或多异氰酸酯的方法阶段A，B，C和E，包括通过在工艺阶段A中将经处理阶段A获得的反应混合物分离成工艺阶段B和C来实现材料偶联，使环氧烷水溶液与二氧化碳反应，得到包含碳酸亚烷基酯的反应混合物，水解部分在工艺阶段B中获得的含碳酸亚烷基酯的反应混合物在工艺阶段B中与二醇的混合物，在工艺阶段D中将来自反应混合物的剩余的含有碳酸亚烃的物流从工艺阶段C脱水，通过氢化合成胺芳香族硝基化合物或腈，在工艺阶段E中，将来自工艺阶段C的脱水的含碳酸亚烷基酯混合物与单羟基醇酯交换，得到相应的碳酸二烷基酯，在工艺阶段F中获得二醇作为副产物，将在工艺阶段E中获得的含碳酸二烷基酯的反应混合物与在工艺阶段D中获得的胺反应到包含相应的单 - ，二 - 和/ 或聚氨酯，其在工艺阶段G被切割以获得相应的二 - 和/或多异氰酸酯。

46. 发明申请

US20120172620A1 PROCESS FOR PREPARING LIGHT-COLOURED ISOCYANATES OF THE DIPHENYLMETHANE SERIES 失效
标题翻译：制备二氯甲烷系列轻质异氰酸酯的方法
公开(公告)号：US20120172620A1
公开(公告)日：2012-07-05
申请号：US13383433
申请日：2010-07-07
申请人： Heiner Schelling , Jon S. Speier , Eckhard Stroefer , Byoung-Yeon Kim
发明人： Heiner Schelling , Jon S. Speier , Eckhard Stroefer , Byoung-Yeon Kim
IPC分类号： C07C263/10
CPC分类号： C07C263/10 , C07C2601/14 , C07C265/14
摘要： The present invention relates to a process for preparing light-coloured polyphenylene-polymethylene-polyisocyanate (PMDI), comprising the steps (a) providing carbon monoxide and chlorine, (b) reacting carbon monoxide with chlorine to form phosgene, (c) reacting the phosgene from step (b) with at least one primary amine with the exception of mono- and polyphenylene-polymethylene polyamines with an excess of phosgene to form an at least one isocyanate containing reaction solution, and hydrogen chloride, (d) separating excess phosgene from the isocyanate-containing reaction solution obtained in step (c), (e) providing at least one polyphenylene-polymethylene polyamine, and (f) reacting at least a portion of the phosgene separated in step (d) with the at least one polyphenylene-polymethylene polyamine to form the light-coloured polyphenylene-polymethylene polyisocyanate.
摘要翻译：本发明涉及一种制备浅色聚亚苯基 - 多亚甲基多异氰酸酯（PMDI）的方法，包括步骤（a）提供一氧化碳和氯，（b）使一氧化碳与氯反应形成光气，（c）使来自步骤（b）的光气与至少一种伯胺除了具有过量光气的单和多亚苯基多亚甲基多胺以形成至少一种含异氰酸酯的反应溶液和氯化氢，（d）将过量的光气从使步骤（c）中得到的含异氰酸酯的反应溶液，（e）提供至少一种聚亚苯基 - 多亚甲基多胺，和（f）将步骤（d）中分离的光气的至少一部分与至少一种聚苯撑 - 聚亚甲基多胺形成浅色聚亚苯基 - 多亚甲基多异氰酸酯。

47. 发明授权

US08193385B2 Method for producing isocyanates 有权
标题翻译：异氰酸酯的制备方法
公开(公告)号：US08193385B2
公开(公告)日：2012-06-05
申请号：US12438086
申请日：2007-08-08
申请人： Matthias Kloetzer , Heinrich-Josef Blankertz , Gunter Georgi , Eckhard Stroefer , Volker Krase , Gerhard Schulz , Andreas Warzecha
发明人： Matthias Kloetzer , Heinrich-Josef Blankertz , Gunter Georgi , Eckhard Stroefer , Volker Krase , Gerhard Schulz , Andreas Warzecha
IPC分类号： C07C263/00
CPC分类号： C07C263/04 , C07C2601/14 , C07C265/14
摘要： The invention relates to a multistage process for the continuous preparation of organic, distillable isocyanates, preferably diisocyanates, particularly preferably aliphatic or cycloaliphatic diisocyanates, by reaction of the corresponding organic amines with urea and alcohols to liberate ammonia and form low molecular weight monomeric urethanes and thermal dissociation of the latter, in which by-products formed are at least partly utilized.
摘要翻译：本发明涉及通过相应的有机胺与尿素和醇的反应来连续制备有机蒸馏异氰酸酯，优选二异氰酸酯，特别优选脂族或脂环族二异氰酸酯的多级方法，以释放氨并形成低分子量单体聚氨酯和热后者的解离，其中形成的副产物至少部分地被利用。

48. 发明申请

US20120035396A1 PROCESS FOR PREPARING MDA VIA THE STAGE OF THE AMINAL 失效
标题翻译：通过氨基酸制备MDA的方法
公开(公告)号：US20120035396A1
公开(公告)日：2012-02-09
申请号：US13265271
申请日：2010-04-19
申请人： Eckhard Stroefer , Kai Thiele , Michael Zoellinger , Johnny Moors , Jon S. Speier
发明人： Eckhard Stroefer , Kai Thiele , Michael Zoellinger , Johnny Moors , Jon S. Speier
IPC分类号： C07C209/78 , C07C211/55
CPC分类号： C07C209/78 , C07C209/62 , C07C211/50
摘要： The invention relates to a process for preparing methylenediphenyldiamine (MDA), comprising the following steps a) to c): a) converting formaldehyde and aniline to aminal b) removing water from the aminal obtained in step a) to establish a water content of 0 to 5% by weight based on the aminal, and c) adding an acidic catalyst to the aminal having a water content of 0 to 5% by weight, which comprises using formaldehyde in step a) in the form of highly concentrated formaldehyde with a CH2O content of >50% by weight and preparing the formaldehyde by oxidative dehydrogenation from methanol.
摘要翻译：本发明涉及一种制备亚甲基二苯基二胺（MDA）的方法，包括以下步骤a）至c）：a）将甲醛和苯胺转化成缩醛; b）从步骤a）中获得的阿米尔液中除去水，以确定含水量为0 至5重量％，以及c）向具有0-5重量％水含量的氨基酸中加入酸性催化剂，其包括在步骤a）中使用甲醛以高浓度甲醛与CH 2 O形式含量> 50重量％，并通过甲醇氧化脱氢制备甲醛。

49. 发明申请

US20110207961A1 PROCESS FOR PREPARING ISOCYANATES 失效
标题翻译：制备异氰酸酯的方法
公开(公告)号：US20110207961A1
公开(公告)日：2011-08-25
申请号：US13125895
申请日：2010-08-02
申请人： Bernhard Geissler , Eckhard Stroefer , Andreas Schmidt , Matthias Kloetzer
发明人： Bernhard Geissler , Eckhard Stroefer , Andreas Schmidt , Matthias Kloetzer
IPC分类号： C07C263/12
CPC分类号： C07C263/04 , C07C265/14
摘要： The invention relates to an improved multistage process for the continuous preparation of diisocyanates by reaction of the corresponding diamines with carbonic acid derivatives and alcohols to form low molecular weight monomeric urethanes and thermal dissociation of the latter.
摘要翻译：本发明涉及通过相应的二胺与碳酸衍生物和醇的反应连续制备二异氰酸酯以形成低分子量单体聚氨酯和后者的热解离的改进的多步方法。

50. 发明申请

US20100056822A1 METHOD FOR PRODUCING ISOCYANATES 审中-公开
公开(公告)号：US20100056822A1
公开(公告)日：2010-03-04
申请号：US12447607
申请日：2007-11-06
申请人： Andreas Daiss , Andreas Woelfert , Carsten Knoesche , Eckhard Stroefer
发明人： Andreas Daiss , Andreas Woelfert , Carsten Knoesche , Eckhard Stroefer
IPC分类号： C07C263/10
CPC分类号： C07C263/10 , C07C265/14
摘要： The invention relates to a process for preparing isocyanates in the gas phase.

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