专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明申请

US20110178329A1 PROCESS FOR PREPARING ISOCYANATES BY THERMAL DISSOCIATION OF CARBAMATES 失效
标题翻译：通过热分解碳酸酯制备异氰酸酯的方法
公开(公告)号：US20110178329A1
公开(公告)日：2011-07-21
申请号：US13008457
申请日：2011-01-18
申请人： Michael BOCK , Axel Franzke , Robert Baumann , Eckhard Stroefer
发明人： Michael BOCK , Axel Franzke , Robert Baumann , Eckhard Stroefer
IPC分类号： C07C263/04
CPC分类号： C07C263/04 , C07C265/14
摘要： The invention relates to a process for preparing isocyanates by thermal dissociation of carbamates and separation by distillation of the reaction mixture from the carbamate dissociation, comprising the corresponding isocyanate and the corresponding alcohol, by distillation in a column (K) having an enrichment section (V) and a stripping section (A), where the carbamate (1) is introduced between the enrichment section (V) and the stripping section (A) and the isocyanate is taken off as a constituent of the bottom stream (2) and the alcohol is taken off as a constituent of the overhead stream (3) from the column (K), in the presence of an inert solvent, wherein an intermediate boiler having a boiling point between the boiling point of the isocyanate and the boiling point of the alcohol under the operating conditions of the carbamate dissociation is used as inert solvent and is fed as external runback (4) in liquid form in a purity of >95% by weight, based on the total weight of the external runback (4), in the upper region of the enrichment section (V) and as gaseous, superheated stream (5) into the lower region of stripping section (A) at one or more points.
摘要翻译：本发明涉及一种通过氨基甲酸酯的热解解制备异氰酸酯的方法，并且通过在具有富集部分（V）的塔（K）中蒸馏，将反应混合物从氨基甲酸酯解离（包括相应的异氰酸酯和相应的醇）中蒸馏分离）和汽提段（A），其中将氨基甲酸酯（1）引入富集部分（V）和汽提部分（A）之间，异氰酸酯作为底部流（2）的组分和醇在惰性溶剂的存在下从柱（K）中作为塔顶馏出物（3）的组分脱去，其中沸点介于异氰酸酯的沸点和醇的沸点之间的中间锅炉在氨基甲酸酯解离的操作条件下，将其作为惰性溶剂使用，并作为外部回流（4）以> 95％重量的液体形式供给，基于外加剂的总重量（4），在富集部分（V）的上部区域和作为气体的过热流（5）在一个或多个点处进入汽提段（A）的下部区域。

42. 发明申请

US20110124908A1 PROCESS FOR PREPARING ISOCYANATES 有权
标题翻译：制备异氰酸酯的方法
公开(公告)号：US20110124908A1
公开(公告)日：2011-05-26
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： C07C263/10
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。

43. 发明授权

US07736598B2 Reactor and method for producing chlorine from HCl 失效
标题翻译：从HCl生产氯的反应器和方法
公开(公告)号：US07736598B2
公开(公告)日：2010-06-15
申请号：US10588511
申请日：2005-02-08
申请人： Lothar Seidemann , Olga Schubert , Martin Sesing , Eckhard Stroefer , Martin Fiene , Christian Walsdorff , Klaus Harth
发明人： Lothar Seidemann , Olga Schubert , Martin Sesing , Eckhard Stroefer , Martin Fiene , Christian Walsdorff , Klaus Harth
IPC分类号： F27B15/14 , F27B15/00 , C01B7/00
CPC分类号： B01J8/34 , B01J8/0055 , B01J8/006 , B01J8/1836 , B01J2208/00132 , B01J2208/0015 , B01J2208/00495 , B01J2219/0286 , C01B7/04
摘要： The invention relates to a reactor and a process for preparing chlorine from hydrogen chloride by gas-phase oxidation by means of oxygen in the presence of a heterogeneous catalyst in a fluidized bed, with gas-permeable plates being located in the fluidized bed. The gas-permeable plates are connected in a thermally conductive manner to a heat exchanger located in the fluidized bed.
摘要翻译：本发明涉及一种反应器和一种通过在流化床中的非均相催化剂存在下通过氧气气相氧化从氯化氢制备氯的方法，气体可渗透板位于流化床中。气体渗透板以导热方式连接到位于流化床中的热交换器。

44. 发明授权

US07705106B2 Initial compounds for producing polyurethanes 失效
标题翻译：用于生产聚氨酯的初始化合物
公开(公告)号：US07705106B2
公开(公告)日：2010-04-27
申请号：US10554505
申请日：2004-04-16
申请人： Peter Groer , Regina Hendreich , Paul Kierkus , Thomas Ostrowski , Eckhard Stroefer , Kai Thiele , Christoph Schnorpfeil , Edward Michael Dexheimer
发明人： Peter Groer , Regina Hendreich , Paul Kierkus , Thomas Ostrowski , Eckhard Stroefer , Kai Thiele , Christoph Schnorpfeil , Edward Michael Dexheimer
IPC分类号： C08G18/00
CPC分类号： C08G18/4825 , C08G18/546
摘要： The invention relates to starting compounds which can be used for the preparation of polyurethanes and can be prepared by reaction of hydroxyl-containing oligomers of formaldehyde.
摘要翻译：本发明涉及可用于制备聚氨酯的起始化合物，并且可以通过含羟基的甲醛低聚物的反应来制备。

45. 发明申请

US20090292100A1 PROCESS FOR PREPARING PENTAMETHYLENE 1,5-DIISOCYANATE 有权
标题翻译：制备戊二烯1,5-二异氰酸酯的方法
公开(公告)号：US20090292100A1
公开(公告)日：2009-11-26
申请号：US12373088
申请日：2007-07-25
申请人： Martin Fiene , Eckhard Stroefer , Wolfgang Siegel , Stephan Freyer , Oskar Zelder , Gerhard Schulz
发明人： Martin Fiene , Eckhard Stroefer , Wolfgang Siegel , Stephan Freyer , Oskar Zelder , Gerhard Schulz
IPC分类号： C08G18/00 , C07C263/12 , C12P13/00 , C07C263/10
CPC分类号： C12P13/00 , C07B59/001 , C07C265/14 , C08G18/73 , C08G2101/00 , C09D175/04 , C12P13/001 , C12P13/02
摘要： The present invention relates to a process for preparing pentamethylene 1,5-diisocyanate, to pentamethylene 1,5-diisocyanate prepared in this way and to the use thereof.
摘要翻译：本发明涉及一种制备五亚甲基-1,5-二异氰酸酯，以这种方式制备的五亚甲基-1,5-二异氰酸酯及其用途的方法。

46. 发明申请

US20090187033A1 INTEGRATED METHOD FOR THE PREPARATION OF TRIOXANE FROM FORMALDEHYDE 失效
标题翻译：用于从甲醛制备三氧化二铁的综合方法
公开(公告)号：US20090187033A1
公开(公告)日：2009-07-23
申请号：US12304223
申请日：2007-06-11
申请人： Markus Siegert , Neven Lang , Eckhard Stroefer , Christophe Sigwart
发明人： Markus Siegert , Neven Lang , Eckhard Stroefer , Christophe Sigwart
IPC分类号： C07D323/06
CPC分类号： C07D323/06 , Y02P20/125
摘要： An integrated process for preparing trioxane from formaldehyde, comprising the steps of: a) feeding a feed stream A1 comprising formaldehyde and water and a recycle stream B3 comprising predominantly water and additionally formaldehyde and trioxane to a formaldehyde concentration unit and separating it into a formaldehyde-rich stream A2 and a stream A3 consisting essentially of water; b) feeding a product stream C1 comprising trioxane, water and formaldehyde, a recycle stream E1 comprising trioxane, water and formaldehyde, and, if appropriate, the stream A2 to a first low-pressure distillation column and distilling at a pressure of from 0.1 to 1.5 bar, and withdrawing a trioxane-enriched stream B comprising predominantly trioxane and additionally water and formaldehyde, a bottom draw stream B2 consisting essentially of formaldehyde and water, and the recycle stream B3 comprising predominantly water and additionally formaldehyde and trioxane as a side draw stream; c) feeding the bottom draw stream B2 and, if appropriate, the stream A2 to a trioxane synthesis reactor and allowing them to react to obtain the stream C1 comprising trioxane, water and formaldehyde; d) feeding the stream B1 to a medium-pressure distillation column and distilling at a pressure of from 1.0 to 3.0 bar to obtain a low boiler stream D1 comprising methanol, methylal and methyl formate, and a stream D2 comprising predominantly trioxane and additionally formaldehyde and water; e) feeding the stream D2 to a high-pressure distillation column and distilling at a pressure of from 2.5 to 10.0 bar to obtain the recycle stream E1 comprising trioxane, water and formaldehyde, and a product stream E2 consisting essentially of trioxane; the stream A2 being fed either to the low-pressure distillation column or to the trioxane synthesis reactor or to both.
摘要翻译：一种用于从甲醛制备三恶烷的综合方法，包括以下步骤：a）将包含甲醛和水的进料流A1和主要包含水，再加甲醛和三恶烷的再循环流B3进料至甲醛浓缩装置，并将其分离成甲醛 - 富流A2和基本上由水组成的流A3; b）将包含三恶烷，水和甲醛的产物流C1，包含三恶烷，水和甲醛的循环流E1，以及如果合适的话，将流A2加入到第一低压蒸馏塔中，并在0.1至0.1的压力下蒸馏包括主要为三恶烷，另外为水和甲醛的三恶烷富集流B，主要由甲醛和水组成的底部牵引流B2，主要包含水和另外的甲醛和三恶烷作为侧馏分流的再循环流B3 ; c）将底部牵引流B2和（如果合适的话）将料流A2加入到三恶烷合成反应器中并使其反应以获得包含三恶烷，水和甲醛的料流C1; d）将料流B1加入到中压蒸馏塔中并在1.0-3.0巴的压力下蒸馏，得到包含甲醇，甲缩醛和甲酸甲酯的低沸点物流D1，以及主要包含三恶烷和另外甲醛的物流D2，以及水; e）将料流D2加入到高压蒸馏塔中并在2.5至10.0巴的压力下蒸馏以获得包含三恶烷，水和甲醛的再循环流E1和基本上由三恶烷组成的产物流E2; 流A2被供给至低压蒸馏塔或三恶烷合成反应器或两者。

47. 发明申请

US20080283384A1 Process for Producing Trioxane and at Least One Comonomer 审中-公开
标题翻译：生产三恶烷和至少一种共聚单体的方法
公开(公告)号：US20080283384A1
公开(公告)日：2008-11-20
申请号：US12091976
申请日：2006-10-27
申请人： Neven Lang , Ralf Boehling , Achim Stammer , Jan Oldenburg , Markus Siegert , Eckhard Stroefer
发明人： Neven Lang , Ralf Boehling , Achim Stammer , Jan Oldenburg , Markus Siegert , Eckhard Stroefer
IPC分类号： C08G2/10 , B01D3/34 , C07D317/12 , C07D323/06
CPC分类号： C08G2/10 , C07D317/12 , C07D323/06 , C08G2/20 , Y02P20/127 , Y02P20/582
摘要： The invention relates to a process for preparing trioxane and at least one comonomer for preparing (co)polymers based on trioxane, in which, in a first step, formaldehyde the at least one comonomer reactant are reacted in aqueous solution to give trioxane and comonomer, to obtain a reaction mixture A1 comprising trioxane, comonomer, formaldehyde and water, with or without comonomer reactant. In a second step, the reaction mixture A1 is distilled in a first distillation stage at a first pressure to obtain a stream B1 enriched in trioxane and comonomer and a stream B2 comprising essentially water and formaldehyde, with or without comonomer reactant. In a third step, stream B1 is distilled in a second distillation stage at a pressure which is above the pressure of the first distillation stage to obtain a stream C1 comprising trioxane, comonomer and water and a product stream C2 consisting essentially of comonomer and trioxane.
摘要翻译：本发明涉及一种制备三恶烷和至少一种共聚单体的方法，该共聚单体用于制备基于三恶烷的（共）聚合物，其中在第一步中，甲醛将至少一种共聚单体反应物在水溶液中反应得到三恶烷和共聚单体，得到含有或不含共聚单体反应物的三恶烷，共聚单体，甲醛和水的反应混合物A 1。在第二步中，将反应混合物A 1在第一压力下在第一蒸馏阶段进行蒸馏，以获得富含三恶烷和共聚单体的物流B 1和基本上含有水和甲醛的物流B 2，具有或不含共聚单体反应物。在第三步骤中，在第二蒸馏阶段，在高于第一蒸馏阶段的压力的压力下蒸馏出料流B 1，以获得包含三恶烷，共聚单体和水的料流C 1和基本上由共聚单体组成的产物流C 2 和三恶烷。

48. 发明申请

US20080262263A1 Method For Purifing Residues Containing Isocyanates 有权
标题翻译：纯化含有异氰酸酯的残留物的方法
公开(公告)号：US20080262263A1
公开(公告)日：2008-10-23
申请号：US12067104
申请日：2006-09-21
申请人： Andreas Wolfert , Carsten Knosche , Matthias Klotzer , Hermann Ascherl , Eckhard Stroefer , Heinrich-Josef Blankertz , Michael Schonherr , Martin Karches , Christian Benz
发明人： Andreas Wolfert , Carsten Knosche , Matthias Klotzer , Hermann Ascherl , Eckhard Stroefer , Heinrich-Josef Blankertz , Michael Schonherr , Martin Karches , Christian Benz
IPC分类号： C07C263/20
CPC分类号： C07C263/20 , C07C2601/14 , C07C265/14
摘要： The present invention comprises a process for purifying isocyanate-comprising residues.
摘要翻译：本发明包括用于纯化含异氰酸酯的残留物的方法。

49. 发明申请

US20080255376A1 Method For the Production of Dioxolane 失效
标题翻译：二氧戊环的生产方法
公开(公告)号：US20080255376A1
公开(公告)日：2008-10-16
申请号：US12066093
申请日：2006-09-06
申请人： Markus Siegert , Neven Lang , Eckhard Stroefer , Achim Stammer
发明人： Markus Siegert , Neven Lang , Eckhard Stroefer , Achim Stammer
IPC分类号： C07D317/12
CPC分类号： C07D317/12 , Y02P20/127
摘要： Processes comprising: providing a reactive distillation column having an upper region, a middle region and a lower region; feeding ethylene glycol and an aqueous formaldehyde solution into the reactive distillation column in the middle region of the reactive distillation column; reacting the ethylene glycol and the aqueous formaldehyde solution in the reactive distillation column in the presence of a catalyst to form dioxolane; removing a product stream comprising dioxolane in an amount of at least 75% by weight from the upper region of the reactive distillation column; and removing a bottom stream comprising one or more components having boiling points higher than dioxolane from the lower region of the reactive distillation column.
摘要翻译：方法包括：提供具有上部区域，中间区域和下部区域的反应性蒸馏塔; 将乙二醇和甲醛水溶液进料到反应蒸馏塔的中间区域的反应蒸馏塔中; 在反应蒸馏塔中在催化剂存在下使乙二醇和甲醛水溶液反应形成二氧戊环; 从反应蒸馏塔的上部区域除去包含至少75重量％的二氧戊环的产物流; 并从反应蒸馏塔的下部区域除去包含沸点高于二氧戊环的一种或多种组分的底部物流。

50. 发明授权

US07414159B2 Separation of liquid mixtures in a film evaporator 失效
标题翻译：在薄膜蒸发器中分离液体混合物
公开(公告)号：US07414159B2
公开(公告)日：2008-08-19
申请号：US10547733
申请日：2004-03-03
申请人： Eckhard Stroefer , Neven Lang , Ute Lichtfers , Ulrich Steinbrenner , Hans Hasse
发明人： Eckhard Stroefer , Neven Lang , Ute Lichtfers , Ulrich Steinbrenner , Hans Hasse
IPC分类号： C07C41/18
CPC分类号： B01D1/225 , B01D1/305 , C08G2/08 , C08G2/24
摘要： A liquid mixture comprising at least one readily volatile and at least one sparingly volatile component is separated in a film evaporator by a process in which (i) a continuous stream of a liquid starting material mixture is provided, (ii) a liquid film is produced from the continuous stream and is brought into contact with a heat exchange surface of the Mm evaporator, (ii) the liquid film is partly evaporated, a gas stream enriched with the at least one readily volatile component and a liquid stream enriched with the at least one sparingly volatile component being obtained, wherein (iv) the heat exchange surface is coated with a catalytically active material which (v) catalyzes, in the liquid film, a chemical reaction in which at least one readily volatile component is formed.
摘要翻译：包含至少一种容易挥发的和至少一种微量挥发性组分的液体混合物在膜蒸发器中通过以下方法分离，其中（i）提供液体原料混合物的连续流，（ii）产生液膜从所述连续流中并与所述膜蒸发器的热交换表面接触，（ii）所述液膜部分蒸发，富含所述至少一种易挥发组分的气流和至少富含至少获得一种微量挥发性组分，其中（iv）热交换表面涂覆有催化活性材料，该催化活性材料（v）在液膜中催化形成至少一种容易挥发的组分的化学反应。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式