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61. 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。

62. 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。

63. 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。

64. 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。

65. 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。

66. 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。

67. 发明授权

US07671240B2 Method for producing polyoxymethylene dimethyl ethers from methanol and formaldehyde 失效
标题翻译：从甲醇和甲醛生产聚甲醛二甲醚的方法
公开(公告)号：US07671240B2
公开(公告)日：2010-03-02
申请号：US11917528
申请日：2006-06-12
申请人： Eckhard Stroefer , Hans Hasse , Sergej Blagov
发明人： Eckhard Stroefer , Hans Hasse , Sergej Blagov
IPC分类号： C07C41/56 , C08G2/08
CPC分类号： C07C41/48 , C07C41/56 , C07C41/58 , C08G2/08 , C07C43/30
摘要： Processes for preparing tri- and tetraoxymethylene glycol dimethyl ether (POMDMEn=3,4) include feeding a reaction mixture of an aqueous formaldehyde solution and methanol into a reactive evaporator and separating into a first low boiler fraction and a first high boiler fraction, recycling the first high boiler fraction into the reactor, feeding the first low boiler fraction into a first distillation column and separating into a second low boiler fraction and a second high boiler fraction, recycling the second high boiler fraction into the reactive evaporator, feeding the second low boiler fraction into a second distillation column and separating into a third low boiler fraction and a third high boiler fraction, feeding the third high boiler fraction into a phase separation apparatus and separating into an aqueous phase and an organic phase, and feeding the organic phase into a third distillation column and separating into a low and high boiler fractions.
摘要翻译：制备三 - 和四甲基二醇二甲醚（POMDMEn = 3,4）的方法包括将甲醛水溶液和甲醇的反应混合物进料到反应蒸发器中，并分离成第一低沸点馏分和第一高沸点馏分，循环利用将第一高锅炉馏分进入反应器，将第一低沸点馏分进料到第一蒸馏塔中并分离成第二低沸点馏分和第二高沸点馏分，将第二高沸点馏分再循环到反应蒸发器中，将第二低沸点馏分将馏分分馏成第二蒸馏塔并分离成第三低沸点馏分和第三高沸点馏分，将第三高沸点馏分进料到相分离装置中并分离成水相和有机相，并将有机相进料至第三蒸馏塔并分离成低和高沸点馏分。

68. 发明申请

US20070293688A1 Method for the Separation by Distillation of Pure Trioxane 审中-公开
标题翻译：蒸馏纯三恶烷分离方法
公开(公告)号：US20070293688A1
公开(公告)日：2007-12-20
申请号：US11660530
申请日：2005-08-18
申请人： Markus Siegert , Neven Lang , Eckhard Stroefer , Achim Stammer , Thorsten Friese
发明人： Markus Siegert , Neven Lang , Eckhard Stroefer , Achim Stammer , Thorsten Friese
IPC分类号： C07D323/06
CPC分类号： B01D3/146 , B01D3/141 , C07D323/06
摘要： The present invention relates to a process for distillatively removing pure trioxane from a feedstream (I) comprising trioxane in a proportion of at least 50% by weight, based on the total weight of the feedstream (I), and additionally formaldehyde and water, which comprises feeding the feedstream I and a further aqueous stream (II) which does not contain any components extraneous to the feedstream to a dividing wall column (TWK1) having a dividing wall TW which is arranged substantially perpendicularly and divides the column interior into a feed region (A1), a withdrawal reaction (B1), an upper combined column region (C1) and a lower combined column region (D1), and drawing off from the first dividing wall column (TWK1) a bottom stream (III) comprising pure trioxane and a sidestream (IV) at the withdrawal region (B1), comprising pure water.
摘要翻译：本发明涉及一种从基于原料流（I）的总重量至少50重量％的比例的另外的甲醛和水的含有三恶烷的原料流（I）蒸馏除去纯三恶烷的方法，以及另外的甲醛和水包括将进料流I和不含任何与进料流无关的任何组分的另外的水流（II）进料到具有基本上垂直布置的分隔壁TW的分隔壁塔（TWK 1），并将塔内部分成进料区域（A 1），取出反应（B 1），上部组合塔区域（C 1）和下部混合塔区域（D 1），从第一分隔壁塔（TWK 1）（III），其包含纯三恶烷和在取出区（B1））的侧流（IV），其包含纯水。

69. 发明授权

US07235697B2 Use of H2S-containing offgas streams for preparing sulfur-containing products 有权
标题翻译：使用含H2S的废气流来制备含硫产品
公开(公告)号：US07235697B2
公开(公告)日：2007-06-26
申请号：US11302614
申请日：2005-12-14
申请人： Christian Müller , Markus Weber , Eckhard Stroefer
发明人： Christian Müller , Markus Weber , Eckhard Stroefer
IPC分类号： C07C315/00 , C07C317/00 , C07C319/00 , C07C321/00 , C07C381/00
CPC分类号： C07C319/24 , C07C319/04 , C07C319/16 , C07C321/04 , C07C321/14
摘要： The present invention relates to a process for preparing sulfur-containing compounds of the general formula I in which Q, R1 and R2 are each independently defined as follows: Q: —S— or —S—S—, R1: hydrogen or saturated or unsaturated, linear or branched C1-C30-alkyl radical, R2: hydrogen or saturated or unsaturated, linear or branched C1-C30-alkyl radical, where R1 and R2 are not simultaneously hydrogen, by reacting a mixed gas stream comprising hydrogen sulfide, with or without oxygen, with linear or branched C1-C30-olefins, which comprises carrying out the reaction in the presence of water and carbon dioxide at a pressure of from 2 to 325 bar.
摘要翻译：本发明涉及一种制备通式I的含硫化合物的方法，其中Q，R 1和R 2各自独立定义如下：Q： -S-或-SS-，R 1：氢或饱和或不饱和的直链或支链C 1 -C 30 - 烷基， R 2是氢或饱和或不饱和的直链或支链C 1 -C 30 - 烷基，其中R 1，通过使包含硫化氢的混合气流与有或没有氧气反应，使其与直链或支链的C 1 -C 1烷基，其中包括在2至325巴的压力下在水和二氧化碳存在下进行反应。

70. 发明申请

US20070135660A1 Method for producing highly concentrated formaldehyde solution 失效
标题翻译：生产高浓度甲醛溶液的方法
公开(公告)号：US20070135660A1
公开(公告)日：2007-06-14
申请号：US10588662
申请日：2005-02-10
申请人： Bernd Rumpf , Eckhard Stroefer , Ortmund Lang , Neven Lang
发明人： Bernd Rumpf , Eckhard Stroefer , Ortmund Lang , Neven Lang
IPC分类号： C07C45/00
CPC分类号： C07C45/82 , C07C47/04
摘要： A process for preparing a high-concentration formaldehyde solution by removing water from a lower-concentration formaldehyde solution having a formaldehyde content of from 5 to 50% by weight, in which the lower-concentration formaldehyde solution is fed to a preheater and heated in the preheater, depressurized via a pressure maintenance device and concentrated in a helical tube evaporator to give a vapor stream and the high-concentration formaldehyde solution as bottom stream, wherein the heated lower-concentration formaldehyde hyde solution is depressurized in the pressure maintenance device to give a two-phase mixture which is fed into the helical tube evaporator, is proposed.
摘要翻译：通过从甲醛含量为5〜50重量％的低浓度甲醛溶液中除去水而制备高浓度甲醛溶液的方法，其中将低浓度甲醛溶液加入到预热器中并在预热器，通过压力维持装置减压，并浓缩在螺旋管蒸发器中，得到蒸气流，高浓度甲醛溶液作为底部流，其中加压的低浓度甲醛海藻溶液在压力维持装置中减压，得到提出了进入螺旋管蒸发器的两相混合物。

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