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公开(公告)号:US20050222453A1
公开(公告)日:2005-10-06
申请号:US10513340
申请日:2003-05-19
IPC分类号: C07C263/10 , C07C265/14
CPC分类号: C07C263/10 , C07C265/14
摘要: The present invention relates to a continuous process for preparing isocyanates by reacting primary amines with phosgene, wherein the reaction is carried out in a cascade of at least two tube reactors and the gas phase formed in the reaction is separated off in a phase separator after each reactor and only the liquid phase is passed to the next reactor or to product purification and the reaction volume of the first tube reactor is only a fraction of the total reaction volume.
摘要翻译: 本发明涉及通过使伯胺与光气反应制备异氰酸酯的连续方法,其中反应在至少两个管式反应器的级联中进行,并且在每个反应器中在相分离器中分离反应中形成的气相 反应器,并且只有液相被传送到下一个反应器或产物纯化,并且第一管式反应器的反应体积仅为总反应体积的一部分。
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公开(公告)号:US07112694B2
公开(公告)日:2006-09-26
申请号:US10513340
申请日:2003-05-19
IPC分类号: C07C263/00 , B01J10/00
CPC分类号: C07C263/10 , C07C265/14
摘要: The present invention relates to a continuous process for preparing isocyanates by reacting primary amines with phosgene, wherein the reaction is carried out in a cascade of at least two tube reactors and the gas phase formed in the reaction is separated off in a phase separator after each reactor and only the liquid phase is passed to the next reactor or to product purification and the reaction volume of the first tube reactor is only a fraction of the total reaction volume.
摘要翻译: 本发明涉及通过使伯胺与光气反应制备异氰酸酯的连续方法,其中反应在至少两个管式反应器的级联中进行,并且在每个反应器中在相分离器中分离反应中形成的气相 反应器,并且只有液相被传送到下一个反应器或产物纯化,并且第一管式反应器的反应体积仅为总反应体积的一部分。
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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。
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公开(公告)号:US07851648B2
公开(公告)日:2010-12-14
申请号:US10539802
申请日:2003-12-13
申请人: Martin Sohn , Eckhard Stroefer , Filip Nevejans , Ulrich Penzel , Hans-Juergen Pallasch , Rene Leuthold , Andreas Brodhagen , Andreas Woelfert , Wolfgang Mackenroth , Markus Maurer
发明人: Martin Sohn , Eckhard Stroefer , Filip Nevejans , Ulrich Penzel , Hans-Juergen Pallasch , Rene Leuthold , Andreas Brodhagen , Andreas Woelfert , Wolfgang Mackenroth , Markus Maurer
IPC分类号: C07C249/00
CPC分类号: C07C263/10 , C07C265/14
摘要: The invention relates to a process for preparing polyisocyanates by reacting organic amines with phosgene, wherein the reaction is carried out in at least three stages, with the first stage being carried out in a mixing apparatus, the second stage in at least one residence apparatus and the third stage in at least one separation apparatus and the pressure in each successive stage being lower than that in the previous stage.
摘要翻译: 本发明涉及一种通过使有机胺与光气反应制备多异氰酸酯的方法,其中反应进行至少三个阶段,第一阶段在混合装置中进行,第二阶段在至少一个停留装置中进行, 在至少一个分离装置中的第三阶段,并且每个连续阶段中的压力低于前一阶段的压力。
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公开(公告)号:US20060252960A1
公开(公告)日:2006-11-09
申请号:US10539802
申请日:2003-12-13
申请人: Martin Sohn , Eckhard Stroefer , Filip Nevejans , Ulrich Penzel , Has-Juergen Pallasch , Rene Leuthold , Andreas Brodhagen , Andreas Woelfert , Wolfgang Mackenroth , Markus Maurer
发明人: Martin Sohn , Eckhard Stroefer , Filip Nevejans , Ulrich Penzel , Has-Juergen Pallasch , Rene Leuthold , Andreas Brodhagen , Andreas Woelfert , Wolfgang Mackenroth , Markus Maurer
IPC分类号: C07C263/10
CPC分类号: C07C263/10 , C07C265/14
摘要: The invention relates to a process for preparing polyisocyanates by reacting organic amines with phosgene, wherein the reaction is carried out in at least three stages, with the first stage being carried out in a mixing apparatus, the second stage in at least one residence apparatus and the third stage in at least one separation apparatus and the pressure in each successive stage being lower than that in the previous stage.
摘要翻译: 本发明涉及一种通过使有机胺与光气反应制备多异氰酸酯的方法,其中反应进行至少三个阶段,第一阶段在混合装置中进行,第二阶段在至少一个停留装置中进行, 在至少一个分离装置中的第三阶段,并且每个连续阶段中的压力低于前一阶段的压力。
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公开(公告)号:US20110263894A1
公开(公告)日:2011-10-27
申请号:US13141906
申请日:2009-12-22
IPC分类号: C07C319/02 , B08B3/08 , C07C303/16 , C07C319/08 , C07C303/02 , B08B9/00 , F04D27/02
CPC分类号: C07C319/08 , C07C303/16 , C07C319/24 , C07C321/04 , C07C321/14 , C07C309/04
摘要: A process for compressing a hydrogen-sulfide-comprising gas stream, which comprises (i) compressing the hydrogen-sulfide-comprising gas stream in a compressor, (ii) flushing the compressor with a mixture comprising dialkyl polysulfides, dialkyl disulfides and at least one amine; a process for producing sulfur compounds, selected from the group consisting of alkylmercaptans, dialkyl disulfides and alkanesulfonic acids, which comprises the conversion of hydrogen-sulfide-comprising gas streams, wherein the hydrogen-sulfide-comprising gas streams are compressed according to the process comprising steps i) and ii); and also the use of a mixture comprising dialkyl polysulfides, dialkyl disulfides and at least one amine for removing sulfur deposits which occur in the compression of hydrogen-sulfide-comprising gas streams.
摘要翻译: 一种用于压缩含硫化氢的气流的方法,其包括(i)在压缩机中压缩含硫化氢的气流,(ii)用包含二烷基多硫化物,二烷基二硫化物和至少一种 胺; 一种生产选自烷基硫醇,二烷基二硫化物和烷基磺酸的硫化合物的方法,其包括含硫化氢的气流的转化,其中含硫化氢的气流根据包括 步骤i)和ii); 以及使用包含二烷基多硫化物,二烷基二硫化物和至少一种胺的混合物来除去在含硫化氢的气流的压缩中发生的硫沉积物。
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公开(公告)号:US20100056822A1
公开(公告)日:2010-03-04
申请号:US12447607
申请日:2007-11-06
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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公开(公告)号:US20100041915A1
公开(公告)日:2010-02-18
申请号:US12521878
申请日:2007-12-12
IPC分类号: C07C263/10
CPC分类号: C07C263/10 , C07C265/14
摘要: The present invention relates to a process for preparing diisocyanates from diamines and phosgene in the gas phase.
摘要翻译: 本发明涉及一种在气相中由二胺和光气制备二异氰酸酯的方法。
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公开(公告)号:US07659430B2
公开(公告)日:2010-02-09
申请号:US11574263
申请日:2005-09-10
申请人: Andreas Woelfert , Carsten Knoesche , Hans-Juergen Pallasch , Martin Sesing , Eckhard Stroefer , Hans-Martin Polka , Manfred Heilig
发明人: Andreas Woelfert , Carsten Knoesche , Hans-Juergen Pallasch , Martin Sesing , Eckhard Stroefer , Hans-Martin Polka , Manfred Heilig
CPC分类号: C01B7/0737 , B01D53/1493 , B01D2257/2045 , C01B32/80
摘要: The invention relates to a process for separating hydrogen chloride and phosgene, which comprises bringing a mixture of hydrogen chloride and phosgene into contact with an ionic liquid in which at least part of the hydrogen chloride is dissolved in a step a) and then separating off the hydrogen chloride dissolved in the ionic liquid in a step b).
摘要翻译: 本发明涉及一种分离氯化氢和光气的方法,其中包括使氯化氢和光气的混合物与其中至少部分氯化氢在步骤a)中溶解的离子液体接触,然后分离出 在步骤b)中溶解在离子液体中的氯化氢。
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公开(公告)号:US08580208B2
公开(公告)日:2013-11-12
申请号:US12963827
申请日:2010-12-09
申请人: Andreas Woelfert , Herald Jachow , Heinz Driess
发明人: Andreas Woelfert , Herald Jachow , Heinz Driess
IPC分类号: B01J8/02 , B01J35/02 , B01J19/00 , C01B17/00 , C01B17/02 , C01B17/16 , C01B17/42 , B01D47/00 , B01D53/46 , B01D53/86
CPC分类号: C01B17/162 , B01J8/008 , B01J8/065 , B01J8/067 , B01J10/005 , B01J19/0053 , B01J19/242
摘要: The present invention describes a reactor (1) for continuously preparing hydrogen sulfide H2S from hydrogen and sulfur, comprising a distributor device (15) for distributing gaseous hydrogen in a sulfur melt (9) present at least in a lower part of the reactor. The distributor device (15) is arranged in the sulfur melt (9) and comprises a distributor plate (16) which is arranged in the reactor (1) and has an edge (17) extending downward and, if appropriate, has passage orifices (19). The hydrogen from a hydrogen bubble which forms below the distributor plate (16) is (for example through the passage orifices (19)) distributed in the sulfur melt (9) via the distributor plate (16).
摘要翻译: 本发明描述了一种用于从氢和硫连续制备硫化氢H 2 S的反应器(1),包括用于在至少在反应器的下部存在的硫磺熔体(9)中分配气态氢的分配器装置(15)。 分配器装置(15)布置在硫磺熔体(9)中并且包括布置在反应器(1)中的分配器板(16),并且具有向下延伸的边缘(17),并且如果适当的话具有通道孔 19)。 来自分配器板(16)下方形成的来自氢气泡的氢气(例如通过通道孔口(19))经由分配板(16)分布在硫磺熔体(9)中。
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