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。

公开(公告)号：US20060047170A1

公开(公告)日：2006-03-02

申请号：US11211898

申请日：2005-08-25

申请人： Berthold Keggenhoff ,  Heinrich Lokum ,  Jurgen Munnig

发明人： Berthold Keggenhoff ,  Heinrich Lokum ,  Jurgen Munnig

IPC分类号： C07C51/58

CPC分类号： B01J8/0085 ,  B01J8/067 ,  B01J19/002 ,  B01J2208/00221 ,  B01J2208/00522 ,  B01J2208/00539 ,  B01J2208/00849 ,  B01J2208/025 ,  B01J2219/00268 ,  C01B32/80 ,  Y02P20/124

摘要： The invention relates to a process for the production of phosgene, in which chlorine and carbon monoxide are reacted in the presence of an activated charcoal catalyst in a shell-and-tube reactor which contains a plurality of reaction tubes and a coolant space surrounding the reaction tubes, in which a) cooling of the reaction tubes is from the outside through the coolant space with water by evaporative cooling, and b) operation of the reaction tubes is at a pressure above the pressure in the coolant space.

摘要翻译： 本发明涉及一种生产光气的方法，其中氯和一氧化碳在活性炭催化剂存在下在壳管式反应器中反应，其中包含多个反应管和围绕反应的冷却剂空间 管，其中a）通过蒸发冷却将反应管的冷却从外部通过冷却剂空间与水，以及b）反应管的操作处于高于冷却剂空间中的压力的​​压力。

公开(公告)号：US6156288A

公开(公告)日：2000-12-05

申请号：US205672

申请日：1998-12-04

申请人： Heiko Beckhaus ,  Jurgen Munnig ,  Dieter Grenner

发明人： Heiko Beckhaus ,  Jurgen Munnig ,  Dieter Grenner

IPC分类号： C01B17/88 ,  C01B17/90 ,  C01B17/94

CPC分类号： C01B17/94 ,  C01B17/88 ,  C01B17/90

摘要： A process is provided for the purification of sulfuric acid contaminated with impurities, such as nitric acid, nitrosylsulfuric acid, dinitrotoluenes and mononitrotoluenes, wherein this contaminated sulfuric acid was obtained from the production of nitrated toluene using toluene and nitric acid. The contaminated sulfuric acid is preheated to a temperature in the range of 50 to 180.degree. C. in a heat exchanger. The heated, contaminated sulfuric acid is freed from steam-volatile impurities, such as dinitrotoluenes and mononitrotoluenes, and the nitrogen-containing compounds within the sulfuric acid are decomposed by counter currently contacting the contaminated sulfuric acid with steam and vapors from a downstream concentration step in a steam stripper, which is operated at a pressure ranging from 300 to 1,000 mbars. The steam-stripped sulfuric acid is fed into a first concentration stage, which is operated at the same pressure used in the steam stripper. The concentrated sulfur acid is then fed into a vacuum concentration process which produces a sulfuric acid having a concentration of 88 to 97 percent by weight. By using the same pressure that the steam stripper operates at in the first concentration stage, the crystallization of nitroaromatic compounds can be avoided in the condensation system of the concentration stages, along with the concomitant blockage of the condensation system that would have been caused by the crystals.

摘要翻译： 提供了用于净化被杂质污染的硫酸的方法，例如硝酸，亚硝酰基硫酸，二硝基甲苯和一硝基甲苯，其中该受污染的硫酸是使用甲苯和硝酸从硝化甲苯生产得到的。 将污染的硫酸在热交换器中预热至50〜180℃的温度。 受热污染的硫酸不含蒸汽挥发性杂质，例如二硝基甲苯和单硝基甲苯，硫酸中的含氮化合物由目前与污染的硫酸接触的蒸汽和蒸汽从下游浓缩步骤中分解 蒸汽汽提器，其工作压力范围为300至1,000千巴。 将蒸汽汽提的硫酸进料到第一浓缩阶段，其在与汽提塔中相同的压力下运行。 然后将浓硫酸加入到产生浓度为88-97重量％的硫酸的真空浓缩过程中。 通过使用蒸汽汽提器在第一浓缩阶段中操作的相同压力，在浓缩阶段的冷凝系统中可以避免硝基芳族化合物的结晶，同时伴随着会引起凝结系统的堵塞 晶体。

公开(公告)号：US08357827B2

公开(公告)日：2013-01-22

申请号：US13019350

申请日：2011-02-02

申请人： Jurgen Munnig ,  Bernd Pennemann ,  Andreas Karl Rausch

发明人： Jurgen Munnig ,  Bernd Pennemann ,  Andreas Karl Rausch

IPC分类号： C07C205/00

CPC分类号： C07C201/08 ,  C07C205/06

摘要： Nitrobenzene is continuously produced by nitration of benzene with mixed acid under adiabatic conditions. In this process, the pressure upstream of the nitration reactor is from 14 bar to 40 bar above the pressure in the gas phase of the phase separation apparatus used to separate crude nitrobenzene and waste acid.

摘要翻译： 通过在绝热条件下用混合酸硝化苯来连续生产硝基苯。 在该过程中，硝化反应器上游的压力比用于分离粗硝基苯和废酸的相分离装置的气相压力高14巴至40巴。