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1. 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。

2. 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。

3. 发明申请

US20060038306A1 Stirring device and process for carrying out a gas-liquid reaction 有权
标题翻译：搅拌装置和进行气液反应的方法
公开(公告)号：US20060038306A1
公开(公告)日：2006-02-23
申请号：US11199697
申请日：2005-08-09
申请人： Rainer Buse , Berthold Keggenhoff , Jurgen Munnig , Friedhelm Steffens , Joachim Ritter
发明人： Rainer Buse , Berthold Keggenhoff , Jurgen Munnig , Friedhelm Steffens , Joachim Ritter
IPC分类号： B01F3/04
CPC分类号： B01F3/04539 , B01F3/2215 , B01F7/00641 , B01F2003/04546 , B01F2003/04567 , B01F2015/061 , B01F2215/0427 , B01F2215/0431 , B01F2215/0472 , B01F2215/0481 , B01J19/0066 , B01J2219/00076
摘要： The invention describes a stirring device made from a gassing stirrer and a liquid mixer or two liquid mixers, which are arranged on a shaft and each have a feed and at least one exit opening, wherein the exit openings of the gassing stirrer and of the liquid mixer or the liquid mixers are at a distance from one another, the ratio, a/d, of the distance, a, between the exit openings to the diameter, d, of the gassing stirrer or liquid mixer being 0.02 to 0.5 and the ratio, b/d, of the distance, b, between the outer edges to the diameter, d, of the gassing stirrer or liquid mixer being 0.01 to 0.4.
摘要翻译：本发明描述了一种由排气搅拌器和液体混合器或两个液体混合器制成的搅拌装置，它们设置在轴上，每个具有进料和至少一个出口，其中排气搅拌器和液体的出口混合器或液体混合器彼此间隔一定距离，排气口与吹气搅拌器或液体混合器的直径d之间的距离a的比值a / d为0.02至0.5， b / d之间的距离b，在外边缘与排气搅拌器或液体混合器的直径d之间的距离b为0.01至0.4。

4. 发明授权

US07322565B2 Stirring device and process for carrying out a gas-liquid reaction 有权
标题翻译：搅拌装置和进行气液反应的方法
公开(公告)号：US07322565B2
公开(公告)日：2008-01-29
申请号：US11199697
申请日：2005-08-09
申请人： Rainer Buse , Berthold Keggenhoff , Jürgen Münnig , Friedhelm Steffens , Joachim Ritter
发明人： Rainer Buse , Berthold Keggenhoff , Jürgen Münnig , Friedhelm Steffens , Joachim Ritter
IPC分类号： B01F3/04
CPC分类号： B01F3/04539 , B01F3/2215 , B01F7/00641 , B01F2003/04546 , B01F2003/04567 , B01F2015/061 , B01F2215/0427 , B01F2215/0431 , B01F2215/0472 , B01F2215/0481 , B01J19/0066 , B01J2219/00076
摘要： The invention describes a stirring device made from a gassing stirrer and a liquid mixer or two liquid mixers, which are arranged on a shaft and each have a feed and at least one exit opening, wherein the exit openings of the gassing stirrer and of the liquid mixer or the liquid mixers are at a distance from one another, the ratio, a/d, of the distance, a, between the exit openings to the diameter, d, of the gassing stirrer or liquid mixer being 0.02 to 0.5 and the ratio, b/d, of the distance, b, between the outer edges to the diameter, d, of the gassing stirrer or liquid mixer being 0.01 to 0.4.
摘要翻译：本发明描述了一种由排气搅拌器和液体混合器或两个液体混合器制成的搅拌装置，它们设置在轴上，每个具有进料和至少一个出口，其中排气搅拌器和液体的出口混合器或液体混合器彼此间隔一定距离，排气口与吹气搅拌器或液体混合器的直径d之间的距离a的比值a / d为0.02至0.5， b / d之间的距离b，在外边缘与排气搅拌器或液体混合器的直径d之间的距离b为0.01至0.4。

5. 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。

6. 发明授权

US08399702B2 Process for the production of aromatic diisocyanates in the gas 有权
标题翻译：在气体中生产芳族二异氰酸酯的方法
公开(公告)号：US08399702B2
公开(公告)日：2013-03-19
申请号：US12313469
申请日：2008-11-20
申请人： Fritz Pohl , Klaus Biskup , Rainer Bruns , Friedhelm Steffens , Lars Padeken
发明人： Fritz Pohl , Klaus Biskup , Rainer Bruns , Friedhelm Steffens , Lars Padeken
IPC分类号： C07C263/00
CPC分类号： C07C263/10 , C07C265/14
摘要： Aromatic diisocyanates are produced by reacting in the gas phase the corresponding primary aromatic diamine with phosgene. The phosgene and the primary aromatic diamine are reacted within a mean residence time of from 0.05 to 15 seconds. The aromatic diamine used contains less than 0.05 mole % overall of aliphatic amine containing no keto groups, per mole of primary amino groups.
摘要翻译：通过在气相中使相应的伯芳族二胺与光气反应来制备芳族二异氰酸酯。光气和主芳族二胺在平均停留时间为0.05至15秒内反应。使用的芳族二胺包含每摩尔伯氨基少于0.05摩尔％的不含酮基的脂族胺的总体。

7. 发明授权

US07615662B2 Process for the preparation of isocyanates in the gas phase 有权
标题翻译：在气相中制备异氰酸酯的方法
公开(公告)号：US07615662B2
公开(公告)日：2009-11-10
申请号：US12001270
申请日：2007-12-11
申请人： Fritz Pohl , Klaus Biskup , Rainer Bruns , Friedhelm Steffens , Herbert Stutz
发明人： Fritz Pohl , Klaus Biskup , Rainer Bruns , Friedhelm Steffens , Herbert Stutz
IPC分类号： C07C263/00
CPC分类号： C07C263/10 , C07C265/14
摘要： Isocyanates are produced by reaction of primary amines with phosgene in the gas phase. In this process, the reaction is terminated by guiding the reaction mixture from the reaction chamber through a cooling stretch into which liquids are injected. Direct cooling takes place in the cooling stretch in one stage in two or more cooling zones connected in series.
摘要翻译：异氰酸酯是通过伯胺与光气在气相中的反应产生的。在该过程中，通过将反应混合物从反应室引导通过其中注入液体的冷却延伸来终止反应。在连续串联的两个或更多个冷却区域中的一个阶段中的冷却拉伸中直接冷却。

8. 发明申请

US20090209784A1 Process for the preparation of isocyanates 有权
标题翻译：异氰酸酯的制备方法
公开(公告)号：US20090209784A1
公开(公告)日：2009-08-20
申请号：US12378508
申请日：2009-02-17
申请人： Wolfgang Lorenz , Matthias Boehm , Richard Adamson , Friedhelm Steffens , Anke Hielscher
发明人： Wolfgang Lorenz , Matthias Boehm , Richard Adamson , Friedhelm Steffens , Anke Hielscher
IPC分类号： C07C263/10
CPC分类号： C01B7/035 , C07C263/10 , C07C263/20 , C07C265/14 , C07C265/12
摘要： The present invention relates to a process for the preparation of isocyanates by reacting the appropriate amines with phosgene, condensing the gas mixture thereby obtained, stripping the liquid phase thereby obtained and returning the solvent so retained in liquid form to the reaction stage. The gaseous constituents are then purified further in an absorption process.
摘要翻译：本发明涉及通过使适当的胺与光气反应制备异氰酸酯的方法，将由此得到的气体混合物冷凝，将由此获得的液相汽提，并使溶剂保持液态返回到反应阶段。然后在吸收过程中进一步纯化气态成分。

9. 发明授权

US07555917B2 Process for purification of anhydrous hydrogen chloride gas 有权
标题翻译：纯化无水氯化氢气体的方法
公开(公告)号：US07555917B2
公开(公告)日：2009-07-07
申请号：US10787608
申请日：2004-02-26
申请人： Bill L. Brady, Jr. , Guenther Weymans , Berthold Keggenhoff , Friedhelm Steffens
发明人： Bill L. Brady, Jr. , Guenther Weymans , Berthold Keggenhoff , Friedhelm Steffens
IPC分类号： F25J3/00
CPC分类号： B01D53/002 , C01B7/0706
摘要： High boiling contaminants such as chloro-aromatic compounds are removed from a gas by compressing the gas containing the contaminant, cooling the compressed gas to reduce the temperature of the gas to at least 20° C. above the outlet temperature of a second cooling stage but above the freezing point of the highest melting compound in the first cooling stage, further cooling the gas in a second cooling stage to at least −20° C., returning cooled gas from the second cooling stage to the first cooling stage, and recovering condensate streams which contain the contaminant compound from the first and second cooling stages. An apparatus suitable for carrying out this process is also disclosed. The process of the present invention is particularly useful for removing chloro-aromatic compounds from anhydrous hydrogen chloride gas.
摘要翻译：通过压缩含有污染物的气体从气体中除去高沸点污染物，例如氯 - 芳族化合物，冷却压缩气体，将气体的温度降低至高于第二冷却阶段的出口温度至少20℃，但是高于第一冷却阶段中最高熔融化合物的凝固点，在第二冷却阶段进一步将气体冷却至至少-20℃，将冷却的气体从第二冷却段返回到第一冷却阶段，并回收冷凝物含有来自第一和第二冷却阶段的污染化合物的物流。还公开了一种适于实施该方法的装置。本发明的方法特别适用于从无水氯化氢气体中除去氯代芳族化合物。

10. 发明授权

US07541487B2 Process for the preparation of isocyanates in the gas phase 有权
标题翻译：在气相中制备异氰酸酯的方法
公开(公告)号：US07541487B2
公开(公告)日：2009-06-02
申请号：US12001235
申请日：2007-12-11
申请人： Fritz Pohl , Klaus Biskup , Rainer Bruns , Friedhelm Steffens , Herbert Stutz
发明人： Fritz Pohl , Klaus Biskup , Rainer Bruns , Friedhelm Steffens , Herbert Stutz
IPC分类号： C07C263/10
CPC分类号： C07C263/10 , C07C2601/14 , C07C265/14
摘要： An isocyanate is produced by reacting a primary amine with phosgene in the gas phase above the boiling point of the amine over an average contact time of 0.05 to 15 seconds under adiabatic conditions.
摘要翻译：在绝热条件下，平均接触时间为0.05〜15秒，通过使伯胺与光气在高于胺沸点的气相中反应来制备异氰酸酯。

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