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1. 发明申请

US20070249859A1 Process for the production of isocyanates 有权
标题翻译：生产异氰酸酯的方法
公开(公告)号：US20070249859A1
公开(公告)日：2007-10-25
申请号：US11409940
申请日：2006-04-24
申请人： Matthias Bohm , Wolfgang Lorenz , Bill Brady , Donald Pferdehirt
发明人： Matthias Bohm , Wolfgang Lorenz , Bill Brady , Donald Pferdehirt
IPC分类号： C07C263/10
CPC分类号： C07C263/10 , C01B7/0706 , C01B7/0731 , C07C263/20 , C07C265/14
摘要： Isocyanates are produced by a) reacting at least one amine with phosgene, optionally in the presence of a solvent to produce the corresponding isocyanate and a stream containing hydrogen chloride, phosgene and optionally solvent, low-boiling compounds and inert substances is obtained, b) separating the stream containing hydrogen chloride, phosgene and optionally solvent, low-boiling compounds and inert substances in an at least two-stage sequence of absorption steps that includes (1) at least one isothermal absorption step and (2) at least one adiabatic absorption step, to obtain (i) a hydrogen chloride stream containing phosgene in concentrations of at most 0.5 wt. % (based on the weight of the hydrogen chloride stream) and (ii) a liquid phosgene stream, and c) recycling the liquid phosgene stream (ii) to the reaction of amine with phosgene.
摘要翻译：异氰酸酯通过以下方法制备：a）任选地在溶剂存在下使至少一种胺与光气反应以产生相应的异氰酸酯，并且获得含有氯化氢，光气和任选溶剂的低沸点化合物和惰性物质的流，b）在至少两级的吸收步骤序列中分离含有氯化氢，光气和任选溶剂的低沸点化合物和惰性物质，其包括（1）至少一个等温吸收步骤和（2）至少一个绝热吸收步骤，以获得（i）含有至多0.5重量％浓度的光气的氯化氢料流。％（基于氯化氢流的重量）和（ii）液体光气流，和c）将液体光气流（ii）再循环到胺与光气的反应中。

2. 发明申请

US20080179176A1 Process for the preparation of aromatic amines 有权
标题翻译：芳香胺的制备方法
公开(公告)号：US20080179176A1
公开(公告)日：2008-07-31
申请号：US12001829
申请日：2007-12-13
申请人： Bernd Pennemann , Bill Brady , Rainer Buse
发明人： Bernd Pennemann , Bill Brady , Rainer Buse
IPC分类号： C02F1/04
CPC分类号： C07C209/36 , Y02P20/124 , Y10S203/08 , Y10S203/11 , Y10S203/20 , C07C211/50
摘要： Aromatic amines are produced by catalytic hydrogenation of aromatic nitro compounds. The reaction mixture generated by this hydrogenation is then worked up by distillation in a manner which makes it possible to substantially free the amine of water with increased energy efficiency. Water free of amine and low boilers and the low boiling materials are also obtained.
摘要翻译：芳族胺通过芳族硝基化合物的催化氢化产生。通过该氢化产生的反应混合物然后通过蒸馏来处理，使得可以以增加的能量效率基本上释放水的胺。也可获得不含胺和低沸点的水和低沸点物质。

3. 发明授权

US07575660B2 Process for the distillative separation of aqueous amine solutions 有权
标题翻译：胺水溶液的蒸馏分离方法
公开(公告)号：US07575660B2
公开(公告)日：2009-08-18
申请号：US11138991
申请日：2005-05-26
申请人： Friedhelm Steffens , Rainer Buse , Bill Brady
发明人： Friedhelm Steffens , Rainer Buse , Bill Brady
IPC分类号： B01D3/00 , C07C51/44 , C07C209/84 , C07C209/86
CPC分类号： C07C209/86 , Y10S203/20 , C07C211/47
摘要： The invention relates to an energy efficient process for the distillative working-up of aqueous amine solutions that occur in the catalytic hydrogenation of nitroaromatic compounds. In this process, the amine is freed from water and also the water is obtained free from amine and low-boiling compounds and the concentrated low-boiling compounds are obtained.
摘要翻译：本发明涉及在硝基芳族化合物的催化氢化中发生的胺水溶液的蒸馏处理的能量有效的方法。在该方法中，胺不含水，而且得不含胺和低沸点化合物的水，得到浓缩的低沸点化合物。

4. 发明授权

US08110073B2 Process for the preparation of aromatic amines 有权
标题翻译：芳香胺的制备方法
公开(公告)号：US08110073B2
公开(公告)日：2012-02-07
申请号：US12001829
申请日：2007-12-13
申请人： Bernd Pennemann , Bill Brady , Rainer Buse
发明人： Bernd Pennemann , Bill Brady , Rainer Buse
IPC分类号： B01D3/02 , C07C209/36 , C07C209/86
CPC分类号： C07C209/36 , Y02P20/124 , Y10S203/08 , Y10S203/11 , Y10S203/20 , C07C211/50
摘要： Aromatic amines are produced by catalytic hydrogenation of aromatic nitro compounds. The reaction mixture generated by this hydrogenation is then worked up by distillation in a manner which makes it possible to substantially free the amine of water with increased energy efficiency. Water free of amine and low boilers and the low boiling materials are also obtained.
摘要翻译：芳族胺通过芳族硝基化合物的催化氢化产生。通过该氢化产生的反应混合物然后通过蒸馏来处理，使得可以以增加的能量效率基本上释放水的胺。也可获得不含胺和低沸点的水和低沸点物质。

5. 发明授权

US07307190B2 Process for the preparation of toluenediamine 有权
标题翻译：制备甲苯二胺的方法
公开(公告)号：US07307190B2
公开(公告)日：2007-12-11
申请号：US11482404
申请日：2006-07-07
申请人： Bernd Pennemann , Bill Brady , Rainer Buse , Gerd Greger
发明人： Bernd Pennemann , Bill Brady , Rainer Buse , Gerd Greger
IPC分类号： C07C209/00 , C07C249/00
CPC分类号： C07C209/36
摘要： Toluenediamine is produced and separated from by-products of the reaction by: a) hydrogenating dinitrotoluene in the presence of a catalyst, b) separating the catalyst, water and optionally solvent from the hydrogenation reaction mixture to give crude toluenediamine, and c) separating by distillation the crude toluenediamine in a separating wall column into at least four product streams P1, P2, P3 and P4. The product stream P1 is a stream containing low boilers. The product stream P2 is a stream containing o-toluenediamine. The product stream P3 is a stream containing m-toluenediamine. The product stream P4 is a stream containing high boilers and m-toluenediamine.
摘要翻译：制备甲苯二胺并通过以下方式与反应的副产物分离：a）在催化剂存在下氢化二硝基甲苯，b）从氢化反应混合物中分离催化剂，水和任选的溶剂，得到粗甲苯二胺，和c）通过将分离壁塔中的粗甲苯二胺蒸馏成至少四种产物流P 1，P 2，P 3和P 4。产物流P 1是含有低锅炉的物流。产物流P 2是含有邻甲苯二胺的物流。产物流P 3是含有间甲苯二胺的物流。产物流P 4是含有高锅炉和间甲苯二胺的物流。

6. 发明申请

US20070015940A1 Process for the preparation of toluenediamine 有权
公开(公告)号：US20070015940A1
公开(公告)日：2007-01-18
申请号：US11482404
申请日：2006-07-07
申请人： Bernd Pennemann , Bill Brady , Rainer Buse , Gerd Greger
发明人： Bernd Pennemann , Bill Brady , Rainer Buse , Gerd Greger
IPC分类号： C07C209/36
CPC分类号： C07C209/36
摘要： Toluenediamine is produced and separated from by-products of the reaction by: a) hydrogenating dinitrotoluene in the presence of a catalyst, b) separating the catalyst, water and optionally solvent from the hydrogenation reaction mixture to give crude toluenediamine, and c) separating by distillation the crude toluenediamine in a separating wall column into at least four product streams P1, P2, P3 and P4. The product stream P1 is a stream containing low boilers. The product stream P2 is a stream containing o-toluenediamine. The product stream P3 is a stream containing m-toluenediamine. The product stream P4 is a stream containing high boilers and m-toluenediamine.

7. 发明授权

US07118653B2 Process for the purification of mixtures of toluenediisocyanate incorporating a dividing-wall distillation column 有权
标题翻译：纯化含有分隔壁蒸馏塔的甲苯二异氰酸酯混合物的方法
公开(公告)号：US07118653B2
公开(公告)日：2006-10-10
申请号：US10457307
申请日：2003-06-09
申请人： Bill Brady , Friedhelm Steffens , Berthold Keggenhoff , Kai Verkerk , Gerhard Ruffert
发明人： Bill Brady , Friedhelm Steffens , Berthold Keggenhoff , Kai Verkerk , Gerhard Ruffert
IPC分类号： B01D3/14 , C07C263/20 , C07C263/10 , C07C265/10
CPC分类号： C07C263/20 , C07C263/10 , Y10S203/11 , C07C265/14
摘要： Process for the purification of toluenediisocyanate from a crude distillation feed which includes toluenediisocyanate, an organic solvent and less than 2% by weight phosgene by separating the crude distillation feed in a dividing-wall distillation column into at least four product fractions P1–P4. P1 is a phosgene enriched low-boiler product, P2 is a solvent-enriched product, P3 is a high boiler enriched bottoms and P4 is a toluenediisocyanate product stream.
摘要翻译：通过将分馏壁蒸馏塔中的粗蒸馏进料分离成至少四个产物馏分P 1 -P 4，从粗蒸馏进料中纯化甲苯二异氰酸酯的方法，所述原油蒸馏进料包括甲苯二异氰酸酯，有机溶剂和小于2重量％的光气 P 1是富含光气的低沸点产物，P 2是富含溶剂的产物，P 3是富含高浓度锅炉的塔底物，P 4是甲苯二异氰酸酯产物流。

8. 发明申请

US20050263385A1 Process for the distillative separation of aqueous amine solutions 有权
标题翻译：胺水溶液的蒸馏分离方法
公开(公告)号：US20050263385A1
公开(公告)日：2005-12-01
申请号：US11138991
申请日：2005-05-26
申请人： Friedhelm Steffens , Rainer Buse , Bill Brady
发明人： Friedhelm Steffens , Rainer Buse , Bill Brady
IPC分类号： B01D3/14 , C07B63/00 , C07C209/86 , C07C211/47 , C07C211/50 , C07C51/44 , F25J3/00
CPC分类号： C07C209/86 , Y10S203/20 , C07C211/47
摘要： The invention relates to an energy efficient process for the distillative working-up of aqueous amine solutions that occur in the catalytic hydrogenation of nitroaromatic compounds. In this process, the amine is freed from water and also the water is obtained free from amine and low-boiling compounds and the concentrated low-boiling compounds are obtained.
摘要翻译：本发明涉及在硝基芳族化合物的催化氢化中发生的胺水溶液的蒸馏处理的能量有效的方法。在该方法中，胺不含水，而且得不含胺和低沸点化合物的水，得到浓缩的低沸点化合物。

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