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公开(公告)号：US09102594B2
公开(公告)日：2015-08-11
申请号：US13696195
申请日：2011-04-29
IPC分类号： C07C263/10
CPC分类号： C07C263/10 , C07C265/14
摘要： The invention relates to a process for the preparation of isocyanates by reaction of the corresponding amines with phosgene in the gas phase, wherein a diluent containing between 90.0000% by weight and 99.9999% by weight of substances which are inert in the phosgenation process and between 0.0001% by weight and 10.0000% by weight of oxygen is present during the conversion of the amine into the gas phase and the molar ratio of amine to oxygen (O2) is ≧1,000:1.
摘要翻译： 本发明涉及一种通过相应的胺与气相中的光气反应来制备异氰酸酯的方法，其中包含在光气化过程中为惰性的物质的90.0000重量％至99.9999重量％的稀释剂和0.0001 在胺转化为气相期间存在重量％和10.0000％重量的氧，胺与氧（O 2）的摩尔比为≧1,000:1。
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公开(公告)号：US20130131377A1
公开(公告)日：2013-05-23
申请号：US13696195
申请日：2011-04-29
IPC分类号： C07C263/10
CPC分类号： C07C263/10 , C07C265/14
摘要： The invention relates to a process for the preparation of isocyanates by reaction of the corresponding amines with phosgene in the gas phase, wherein a diluent containing between 90.0000% by weight and 99.9999% by weight of substances which are inert in the phosgenation process and between 0.0001% by weight and 10.0000% by weight of oxygen is present during the conversion of the amine into the gas phase and the molar ratio of amine to oxygen (O2) is ≧1,000:1.
摘要翻译： 本发明涉及一种通过相应的胺与气相中的光气反应来制备异氰酸酯的方法，其中包含在光气化过程中为惰性的物质的90.0000重量％至99.9999重量％的稀释剂和0.0001 在胺转化为气相期间存在重量％和10.0000％（重量）的氧，胺与氧（O 2）的摩尔比≥1000:1。
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公开(公告)号：US09051243B2
公开(公告)日：2015-06-09
申请号：US13383936
申请日：2010-07-06
IPC分类号： C07C263/10
CPC分类号： C07C263/10 , C07C265/14
摘要： Isocyanates are produced by reacting a primary amine with phosgene in the gas phase. In this process, the amine is vaporized and then superheated prior to introduction into the reactor. The amine is superheated to a temperature at least 10° C. above dew point before entry into the reactor. A pressure difference between the vaporizer and entry into the reactor of from 1 to 500 mbar is maintained.
摘要翻译： 异氰酸酯是通过在气相中使伯胺与光气反应来制备的。 在该方法中，胺被蒸发，然后在引入反应器之前过热。 胺在进入反应器之前过热至高于露点至少10℃的温度。 蒸发器和进入反应器的压差保持在1至500毫巴之间。
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公开(公告)号：US20120108845A1
公开(公告)日：2012-05-03
申请号：US13383936
申请日：2010-07-06
IPC分类号： C07C263/10
CPC分类号： C07C263/10 , C07C265/14
摘要： Isocyanates are produced by reacting a primary amine with phosgene in the gas phase. In this process, the amine is vaporized and then superheated prior to introduction into the reactor. The amine is superheated to a temperature at least 10° C. above dew point before entry into the reactor. A pressure difference between the vaporizer and entry into the reactor of from 1 to 500 mbar is maintained.
摘要翻译： 异氰酸酯是通过在气相中使伯胺与光气反应来制备的。 在该方法中，胺被蒸发，然后在引入反应器之前过热。 胺在进入反应器之前过热至高于露点至少10℃的温度。 蒸发器和进入反应器的压差保持在1至500毫巴之间。
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公开(公告)号：US09024057B2
公开(公告)日：2015-05-05
申请号：US12632117
申请日：2009-12-07
申请人： Klaus Biskup , Rainer Bruns , Wolfgang Lorenz , Fritz Pohl , Friedhelm Steffens , Volker Michele
发明人： Klaus Biskup , Rainer Bruns , Wolfgang Lorenz , Fritz Pohl , Friedhelm Steffens , Volker Michele
IPC分类号： C07C263/00 , C07C263/10
CPC分类号： C07C263/10 , C07C265/14
摘要： Aromatic isocyanates are produced by reacting one or more aromatic primary amines with phosgene in the gas phase. The phosgene and primary aromatic amine(s) are reacted at a temperature above the boiling temperature of the amine(s) in a reactor having a reaction space which is essentially rotationally symmetric to the direction of flow. The flow fate, averaged over the cross-section, of the reaction mixture along the axis of the essentially rotationally symmetric reaction space in the section of the reaction space in which the conversion of the amine groups into isocyanate groups is between 4 and 80% is not more than 8 m/sec. The flow rate averaged over the cross-section of the reaction mixture along the axis of the essentially rotationally symmetric reaction space in the section of the reaction space in which the conversion of the amine groups into isocyanate groups is 4 to 80% is always below the flow rate averaged over the cross-section at the start of this section.
摘要翻译： 通过一种或多种芳族伯胺与气相中的光气反应制备芳族异氰酸酯。 光气和伯芳基胺在具有反应空间的反应器中在高于胺的沸点温度的温度下反应，反应空间基本上与流动方向旋转对称。 反应混合物沿着反应空间部分中基本上旋转对称的反应空间轴线的横截面平均流动，其中胺基转化为异氰酸酯基的反应空间为4-80％ 不超过8米/秒。 反应混合物的横截面上的平均流量在反应空间的基本上旋转对称的反应空间的轴上，其中胺基转化为异氰酸酯基团的部分总是低于 在本节开头的横截面上平均流量。
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公开(公告)号：US20120302785A1
公开(公告)日：2012-11-29
申请号：US13382609
申请日：2010-06-26
申请人： Rainer Bruns , Wolfgang Lorenz , Knut Sommer
发明人： Rainer Bruns , Wolfgang Lorenz , Knut Sommer
IPC分类号： C07C263/10
CPC分类号： C07C263/10 , C07C265/14
摘要： An isocyanate is produced by continuously reacting an amine with phosgene in the presence of an inert substance in the gas phase. In this process, a phosgene-containing stream and a stream containing both the amine and the inert substance are fed into a reactor. The molar ratio of the inert substance to the amino groups in the stream is greater than 0 but less than 45 mol %. This molar ratio changes by no more than 99% during a 20 minute period.
摘要翻译： 异氰酸酯是通过在气相中惰性物质存在下使胺与光气连续反应生成的。 在该方法中，将含有光气的物流和含有胺和惰性物质的物流进料到反应器中。 惰性物质与物流中氨基的摩尔比大于0但小于45摩尔％。 该摩尔比在20分钟内变化不超过99％。
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公开(公告)号：US09365503B2
公开(公告)日：2016-06-14
申请号：US12636925
申请日：2009-12-14
申请人： Klaus Biskup , Rainer Bruns , Wolfgang Lorenz , Lars Padeken , Bernd Pennemann , Fritz Pohl , Andreas Rausch , Friedhelm Steffens
发明人： Klaus Biskup , Rainer Bruns , Wolfgang Lorenz , Lars Padeken , Bernd Pennemann , Fritz Pohl , Andreas Rausch , Friedhelm Steffens
IPC分类号： C07C263/10
CPC分类号： C07C263/10 , C07C265/14
摘要： Meta-toluene-diisocyanate is produced by reacting meta-toluenediamine with phosgene in the gas phase. The meta-toluenediamine to be vaporized for use in this phosgenation process must contain less than 0.5 wt. % of toluenediamine residue, a total of less than 0.2 wt. % of ammonia and cycloaliphatic amines, and less than 20 ppm of heavy metals. At least 0.1 wt. % of the liquid meta-toluenediamine being to be vaporized must not be vaporized. This non-vaporized content of the meta-toluenediamine must not be fed to the phosgenation reactor.
摘要翻译： 甲基 - 甲苯二异氰酸酯是通过间苯二甲胺与光气在气相中反应制得的。 要在该光气化过程中使用的待蒸发的间甲苯二胺必须含有小于0.5wt。 ％的甲苯二胺残留物，总计小于0.2wt。 ％的氨和脂环族胺，以及小于20ppm的重金属。 至少0.1wt。 待蒸发的液体间甲苯二胺的％不得蒸发。 间甲苯二胺的这种非汽化含量不得进料到光气化反应器中。
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公开(公告)号：US20100160674A1
公开(公告)日：2010-06-24
申请号：US12636925
申请日：2009-12-14
申请人： Klaus Biskup , Rainer Bruns , Wolfgang Lorenz , Lars Padeken , Bernd Pennemann , Fritz Pohl , Andreas Rausch , Friedhelm Steffens
发明人： Klaus Biskup , Rainer Bruns , Wolfgang Lorenz , Lars Padeken , Bernd Pennemann , Fritz Pohl , Andreas Rausch , Friedhelm Steffens
IPC分类号： C07C263/10
CPC分类号： C07C263/10 , C07C265/14
摘要： Meta-toluene-diisocyanate is produced by reacting meta-toluenediamine with phosgene in the gas phase. The meta-toluenediamine to be vaporized for use in this phosgenation process must contain less than 0.5 wt. % of toluenediamine residue, a total of less than 0.2 wt. % of ammonia and cycloaliphatic amines, and less than 20 ppm of heavy metals. At least 0.1 wt. % of the liquid meta-toluenediamine being to be vaporized must not be vaporized. This non-vaporized content of the meta-toluenediamine must not be fed to the phosgenation reactor.
摘要翻译： 甲基 - 甲苯二异氰酸酯是通过间苯二甲胺与光气在气相中反应制得的。 要在该光气化过程中使用的待蒸发的间甲苯二胺必须含有小于0.5wt。 ％的甲苯二胺残留物，总计小于0.2wt。 ％的氨和脂环族胺，以及小于20ppm的重金属。 至少0.1wt。 待蒸发的液体间甲苯二胺的％不得蒸发。 间甲苯二胺的这种非汽化含量不得进料到光气化反应器中。
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公开(公告)号：US20100152484A1
公开(公告)日：2010-06-17
申请号：US12632117
申请日：2009-12-07
申请人： Klaus Biskup , Rainer Bruns , Wolfgang Lorenz , Fritz Pohl , Friedhelm Steffens , Volker Michele
发明人： Klaus Biskup , Rainer Bruns , Wolfgang Lorenz , Fritz Pohl , Friedhelm Steffens , Volker Michele
IPC分类号： C07C263/10
CPC分类号： C07C263/10 , C07C265/14
摘要： Aromatic isocyanates are produced by reacting one or more aromatic primary amines with phosgene in the gas phase. The phosgene and primary aromatic amine(s) are reacted at a temperature above the boiling temperature of the amine(s) in a reactor having a reaction space which is essentially rotationally symmetric to the direction of flow. The flow fate, averaged over the cross-section, of the reaction mixture along the axis of the essentially rotationally symmetric reaction space in the section of the reaction space in which the conversion of the amine groups into isocyanate groups is between 4 and 80 % is not more than 8 m/sec. The flow rate averaged over the cross-section of the reaction mixture along the axis of the essentially rotationally symmetric reaction space in the section of the reaction space in which the conversion of the amine groups into isocyanate groups is 4 to 80 % is always below the flow rate averaged over the cross-section at the start of this section.
摘要翻译： 通过一种或多种芳族伯胺与气相中的光气反应制备芳族异氰酸酯。 光气和伯芳基胺在具有反应空间的反应器中在高于胺的沸点温度的温度下反应，反应空间基本上与流动方向旋转对称。 反应混合物沿着反应空间部分中基本上旋转对称的反应空间轴线的横截面平均流动，其中胺基转化为异氰酸酯基的反应空间为4-80％ 不超过8米/秒。 反应混合物的横截面上的平均流量在反应空间的基本上旋转对称的反应空间的轴上，其中胺基转化为异氰酸酯基团的部分总是低于 在本节开头的横截面上平均流量。
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公开(公告)号：US08563768B2
公开(公告)日：2013-10-22
申请号：US13382615
申请日：2010-06-26
IPC分类号： C07C263/10
CPC分类号： C07C263/10 , C01B32/80 , C07C265/14
摘要： An isocyanate is produced by reacting an amine with a stoichiometric excess of phosgene in the gas phase. This reaction is carried out at a temperature above the amine's boiling point to obtain a liquid stream containing the isocyanate and a gas stream containing hydrogen chloride and phosgene. The gas stream containing hydrogen chloride and phosgene thus produced is separated into a gas stream containing hydrogen chloride and a liquid stream containing phosgene. At least part of the liquid stream containing phosgene is then converted to a gas stream containing phosgene which gas stream is then recycled. The gaseous phosgene stream is maintained at a higher pressure than the liquid phosgene stream.
摘要翻译： 通过在气相中使胺与化学计量过量的光气反应来制备异氰酸酯。 该反应在高于胺沸点的温度下进行，得到含有异氰酸酯和含有氯化氢和光气的气流的液体流。 将由此产生的含有氯化氢和光气的气流分离成含有氯化氢的气流和含有光气的液体流。 然后将含有光气的液体物流的至少一部分转化成含有光气的气流，然后将气流再循环。 气态光气流保持在比液体光气流更高的压力下。
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