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公开(公告)号：US09682917B2
公开(公告)日：2017-06-20
申请号：US14397914
申请日：2013-04-29
IPC分类号： C07C209/84
CPC分类号： C07C209/84 , C07C211/46 , C07C211/50
摘要： The present invention relates to a method for treating a substance mixture comprising an aromatic amine, wherein the aromatic amine is aniline or 2,4-diaminotoluene, preferably aniline. The substance mixture comprises an aromatic amine and compounds having a higher boiling point than the aromatic amine. The method for treating the substance mixture requires I) separating the first substance mixture by means of distillation in a first distillation unit (110, 1130), to at least partially remove some of the aromatic amine in the process, and to obtain a first bottom product which is removed from the first distillation unit (110, 1130). After removal from the first distillation unit (110, 1130), the bottom product is diluted with a condensed top product from a distillation unit that is different from the first distillation unit and/or with a composition that comprises methanol.
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2.发明申请METHOD FOR STARTING A REACTION DURING THE PRODUCTION OF AROMATIC AMINES FROM NITROAROMATICS 有权在硝基菌生产芳族氨基酸期间开始反应的方法公开(公告)号：US20150080611A1
公开(公告)日：2015-03-19
申请号：US14394139
申请日：2013-04-12
IPC分类号： C07C209/36
CPC分类号： C07C209/36 , C07C209/84 , Y02P20/584 , C07C211/46 , C07C211/47
摘要： The present invention relates to a method of producing aromatic amines by hydrogenation of aromatic nitro compounds. This method comprises the steps: A) making a reactor containing a hydrogenation catalyst available; B) supplying aromatic nitro compounds and hydrogen to the reactor and contacting them with a hydrogenation catalyst, with at least the hydrogen which is supplied to the reactor is by means of a compressor and the compressor contains an operating fluid which at least partially contacts the hydrogen; and C) regenerating the hydrogenation catalyst by heating and contacting it with oxygen. After step C), steps D1) and/or D2) are carried out. Step D1) removes at least some of any fluids that are present in the reactor and/or in parts of the installation which are fluidically connected to the reactor downstream, with the fluids having been at least partially present in the reactor and/or in these parts of the installation during C).Step D2) at least partially replaces the operating fluid of the compressor which was present in the compressor and/or in recirculation devices connected to the compressor during step C) by an operating fluid which was not present in the compressor and/or in recirculation devices connected to the compressor during step C).
摘要翻译： 本发明涉及通过芳族硝基化合物的氢化生产芳族胺的方法。 该方法包括以下步骤：A）制备含有氢化催化剂的反应器; B）将芳基硝基化合物和氢气供应到反应器中并使其与氢化催化剂接触，至少提供给反应器的氢气是借助于压缩机，并且压缩机包含至少部分地接触氢气的工作流体 ; 和C）通过加热和使其与氧接触来再生氢化催化剂。 在步骤C）之后，执行步骤D1）和/或D2）。 步骤D1）除去反应器和/或在装置的流体连接到反应器下游的部分中的至少一些流体，其中流体至少部分地存在于反应器和/或这些 C）部分安装。 在步骤C）期间，步骤D2）至少部分地替换存在于压缩机中的压缩机的工作流体和/或在步骤C）期间连接到压缩机的再循环装置中的压缩机的工作流体，该工作流体不存在于压缩机和/或再循环装置 在步骤C）中连接到压缩机。
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3.发明授权Method for stopping a reaction during the production of aromatic amines from nitroaromatics 有权在硝基芳族化合物生产芳香胺期间停止反应的方法公开(公告)号：US09469594B2
公开(公告)日：2016-10-18
申请号：US14394142
申请日：2013-04-12
IPC分类号： C07C209/36 , C07C209/84
CPC分类号： C07C209/36 , C07C209/84 , C07C211/46 , C07C211/47
摘要： The present invention relates to a method for producing aromatic amines by the hydrogenation of aromatic nitro compounds. This method supplies aromatic nitro compounds and hydrogen to a reactor and contacts them with a hydrogenation catalyst; and stops the supply of aromatic nitro compounds and hydrogen to the reactor. The supply of aromatic nitro compounds and hydrogen to the reactor is stopped to ensure safe shutdown of the reactor.
摘要翻译： 本发明涉及通过芳族硝基化合物的氢化生产芳族胺的方法。 该方法将芳香族硝基化合物和氢气供给反应器，并与氢化催化剂接触; 并停止向反应器供应芳族硝基化合物和氢气。 停止向反应器供应芳族硝基化合物和氢气，以确保反应器的安全关闭。
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4.发明申请METHOD FOR STOPPING A REACTION DURING THE PRODUCTION OF AROMATIC AMINES FROM NITROAROMATICS 有权在硝基菌生产芳族氨基酸期间停止反应的方法公开(公告)号：US20150087862A1
公开(公告)日：2015-03-26
申请号：US14394142
申请日：2013-04-12
IPC分类号： C07C209/36
CPC分类号： C07C209/36 , C07C209/84 , C07C211/46 , C07C211/47
摘要： The present invention relates to A method for producing aromatic amines by the hydrogenation of aromatic nitro compounds. This method comprises: A) supplying aromatic nitro compounds and hydrogen to a reactor and contacting them with a hydrogenation catalyst; and B) stopping the supply of aromatic nitro compounds and hydrogen to the reactor. In addition, B) is carried out by: B1) stopping the supply of aromatic nitro compounds to the reactor such that any remaining aromatic nitro compounds present in the reactor and/or in parts of the installation that are fluidically connected to the reactor upstream react with the hydrogen that is still being supplied to the reactor, and B2) stopping the supply of hydrogen after a predetermined time interval and/or after the concentration of aromatic nitro compounds in the gas flow entering the reactor falls below a predetermined value.
摘要翻译： 本发明涉及芳香族硝基化合物的氢化制造芳香胺的方法。 该方法包括：A）将芳香族硝基化合物和氢气供给反应器，并与氢化催化剂接触; 和B）停止向反应器供应芳族硝基化合物和氢气。 此外，B）通过以下方式进行：B1）停止向反应器供应芳族硝基化合物，使得存在于反应器中的任何剩余的芳族硝基化合物和/或流体连接到反应器上游的部分设备反应 其中仍然供应到反应器的氢气，以及B2）在预定时间间隔之后和/或在进入反应器的气流中的芳族硝基化合物的浓度之后停止氢气供应降低到预定值以下。
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5.发明授权Method for starting a reaction during the production of aromatic amines from nitroaromatics 有权在硝基芳族化合物制备芳香胺期间开始反应的方法公开(公告)号：US09290438B2
公开(公告)日：2016-03-22
申请号：US14394139
申请日：2013-04-12
IPC分类号： C07C209/36 , C07C209/84
CPC分类号： C07C209/36 , C07C209/84 , Y02P20/584 , C07C211/46 , C07C211/47
摘要： The present invention relates to a method of producing aromatic amines by hydrogenation of aromatic nitro compounds. This method provides a reactor containing a hydrogenation catalyst; supplies aromatic nitro compounds and hydrogen to the reactor and contacts them with a hydrogenation catalyst, in which the hydrogen which is supplied to the reactor is by a compressor and the compressor contains an operating fluid which at least partially contacts the hydrogen; and regenerates the hydrogenation catalyst by heating and contacting it with oxygen. Particular operating liquids are subsequently exchanged.
摘要翻译： 本发明涉及通过芳族硝基化合物的氢化生产芳族胺的方法。 该方法提供含有氢化催化剂的反应器; 向反应器中提供芳族硝基化合物和氢气，并与氢化催化剂接触，氢化催化剂中，通过压缩机供给反应器的氢气，压缩机含有至少部分接触氢气的工作流体; 并通过加热和与氧接触来再生氢化催化剂。 随后更换特殊的操作液体。
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6.发明申请METHOD FOR TREATING A SUBSTANCE MIXTURE COMPRISING AN AROMATIC AMINE, IN PARTICULAR A SUBSTANCE MIXTURE OF RAW ANILINE 有权用于处理包含芳香胺的物质混合物的方法，特别是原料的物质混合物公开(公告)号：US20150094493A1
公开(公告)日：2015-04-02
申请号：US14397914
申请日：2013-04-29
IPC分类号： C07C209/84
CPC分类号： C07C209/84 , C07C211/46 , C07C211/50
摘要： The present invention relates to a method for treating a substance mixture comprising an aromatic amine, wherein the aromatic amine is aniline or 2,4-diaminotoluene, preferably aniline. The substance mixture comprises an aromatic amine and compounds having a higher boiling point than the aromatic amine. The method for treating the substance mixture requires I) separating the first substance mixture by means of distillation in a first distillation unit (110, 1130), to at least partially remove some of the aromatic amine in the process, and to obtain a first bottom product which is removed from the first distillation unit (110, 1130). After removal from the first distillation unit (110, 1130), the bottom product is diluted with a condensed top product from a distillation unit that is different from the first distillation unit and/or with a composition that comprises methanol.
摘要翻译： 本发明涉及一种处理包含芳族胺的物质混合物的方法，其中芳族胺是苯胺或2,4-二氨基甲苯，优选苯胺。 物质混合物包含芳族胺和沸点高于芳族胺的化合物。 用于处理物质混合物的方法需要I）在第一蒸馏单元（110,1130）中通过蒸馏分离第一物质混合物，以至少部分地除去该方法中的一些芳族胺，并获得第一底部 从第一蒸馏单元（110,1130）除去的产物。 从第一蒸馏单元（110,1130）中除去后，用不同于第一蒸馏单元的蒸馏单元和/或包含甲醇的组合物的冷凝顶部产物稀释底部产物。
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