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1. 发明授权

US06271414B1 Process for the isomeric separation of isocyanates 失效
标题翻译：异氰酸酯异构体分离方法
公开(公告)号：US06271414B1
公开(公告)日：2001-08-07
申请号：US09297350
申请日：1999-04-29
申请人： Rüdiger Drope , Dieter Grenner , Hartmut Hetzel , Hans-Peter Schal , Gerhard Wegener
发明人： Rüdiger Drope , Dieter Grenner , Hartmut Hetzel , Hans-Peter Schal , Gerhard Wegener
IPC分类号： C07C25100
CPC分类号： C07C263/20 , C07C265/14
摘要： A process is described for obtaining pure isocyanate isomers from a mixture of isocyanate isomers by suspension crystallization and the isolation of isomerically pure crystals, which is characterized in that, prior to the isolation of the crystals, 5 to 40% by weight of the crystals produced are remelted while simultaneously increasing the temperature of the crystal slurry by 4.5 to 9° C.
摘要翻译：描述了通过悬浮结晶和异构纯晶体的分离从异氰酸酯异构体的混合物中获得纯异氰酸酯异构体的方法，其特征在于，在分离晶体之前，产生5至40重量％的晶体重熔，同时将结晶浆料的温度同时提高4.5至9℃。

2. 发明授权

US5817211A Process and device for continuous evaporation to dryness of viscous solutions and suspensions with a tendency to stick 失效
标题翻译：用于连续蒸发至具有粘滞倾向的粘稠溶液和悬浮液的干燥装置
公开(公告)号：US5817211A
公开(公告)日：1998-10-06
申请号：US760937
申请日：1996-12-06
申请人： Clemens Casper , Dieter Grenner , Hartmut Hetzel
发明人： Clemens Casper , Dieter Grenner , Hartmut Hetzel
IPC分类号： B01D1/00 , B01D1/02 , B01D1/16 , B01D1/22 , B01D3/06 , B01D3/08 , B01D3/34
CPC分类号： B01D1/02 , B01D3/06 , B01D3/08 , B01D3/343
摘要： The viscosity of a fluid liquid substance is first increased in a multiphase coil in the presence of a gas phase flowing at high speed and then, with separation of the gas phase, the substance is applied to a stirred bed consisting of a solid granular material where it is converted into a solid substance.
摘要翻译：流体液体物质的粘度首先在高速流动的气相存在下在多相线圈中增加，然后在分离气相的同时，将物质施加到由固体颗粒材料组成的搅拌床上，它被转化为固体物质。

3. 发明授权

US5609735A Process and a device for separating a solid residue from its solution in a stirred bed of material 失效
标题翻译：方法和用于在搅拌的材料床中从其溶液中分离固体残余物的装置
公开(公告)号：US5609735A
公开(公告)日：1997-03-11
申请号：US518092
申请日：1995-08-22
申请人： Hartmut Hetzel , Dieter Grenner , Wolfgang Ebner , Klaus Biskup
发明人： Hartmut Hetzel , Dieter Grenner , Wolfgang Ebner , Klaus Biskup
IPC分类号： F26B5/04 , B01D1/00 , B01D1/24 , B01D3/08 , B01D3/10 , B01F15/00 , B01F15/06 , C07B63/00 , C07C263/18 , C07C263/20 , C07C265/14 , F26B17/22 , B01D3/34
CPC分类号： B01D3/10 , B01D3/08 , C07C263/20 , Y10S203/90
摘要： A process and a device are described for separating a solid residue, after separation, from a solution of the residue in evaporable materials and/or solvents with the addition of up to 20% by weight of high-boiling hydrocarbons that are inert under evaporation conditions of the evaporable materials, heating the mixture to evaporation temperature under vacuum, whereby the evaporable materials evaporate, are drawn off and condensed, and the residue is obtained as a free-flowing solid, the residue solution being introduced onto a stirred bed of granular solid material kept at the evaporation temperature.
摘要翻译：描述了一种方法和装置，用于在蒸发的材料和/或溶剂中将固体残余物从残留物的溶液中分离出来，加入高达20重量％的在蒸发条件下是惰性的高沸点烃的蒸发材料，将混合物在真空下加热至蒸发温度，由此蒸发的材料蒸发，被抽出并冷凝，并且残余物作为自由流动的固体获得，将残余物溶液引入搅拌的颗粒状固体床材料保持在蒸发温度。

4. 发明授权

US5563296A Continuous process for preparing aromatic amines 失效
标题翻译：制备芳香胺的连续工艺
公开(公告)号：US5563296A
公开(公告)日：1996-10-08
申请号：US268407
申请日：1994-06-30
申请人： Uwe J. Zarnack , Fritz Pohl , Dieter Grenner , Hartmut Hetzel , Helmut Judat
发明人： Uwe J. Zarnack , Fritz Pohl , Dieter Grenner , Hartmut Hetzel , Helmut Judat
IPC分类号： B01J25/00 , B01J8/00 , B01J19/00 , B01J19/24 , B01J19/26 , C07B61/00 , C07C209/36 , C07C211/50
CPC分类号： B01J8/006 , B01J19/0006 , B01J19/2465 , B01J19/26 , C07C209/36 , B01J2219/00103 , B01J2219/0011 , B01J2219/00162 , B01J2219/00164 , B01J2219/00182
摘要： Aromatic diamines and polyamines are produced by a continuous process for the catalytic hydrogenation of the corresponding dinitro and polynitro compounds at elevated temperature. Heat removed from the reaction mixture may be used to produce steam with an overpressure of .gtoreq.2 bar.
摘要翻译：芳族二胺和多胺通过连续方法产生，用于在升高的温度下对相应的二硝基和多硝基化合物的催化氢化。从反应混合物中除去的热量可用于产生> / = 2巴的超压蒸汽。

5. 发明授权

US6156288A Process for purifying and concentrating spent sulfuric acids 有权
标题翻译：净化和浓缩废硫酸的方法
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。

6. 发明授权

US4070405A Process for working up liquid copper-containing catalyst waste from isomerization reactions of dichlorobutene 失效
标题翻译：从二氯丁烯的异构化反应中处理液体含铜催化剂废物的方法
公开(公告)号：US4070405A
公开(公告)日：1978-01-24
申请号：US704792
申请日：1976-07-13
申请人： Rolf Baatz , Gunter Beilstein , Dieter Grenner , Wilfried Keller , Dimitry Steinbach
发明人： Rolf Baatz , Gunter Beilstein , Dieter Grenner , Wilfried Keller , Dimitry Steinbach
IPC分类号： C07C17/392 , C02F11/00 , C07C17/00 , C07C17/358 , C07C21/09 , C07C67/00 , C07C21/00
CPC分类号： C07C17/358
摘要： Improved working up of the waste from an isomerization reaction of dichlorobutene by precipitating the copper catalyst used in said process by adding a polar solvent and removing the resulting precipitate by filtration.
摘要翻译：通过加入极性溶剂并通过过滤除去所得沉淀物，通过沉淀所述方法中使用的铜催化剂来改进二氯丁烯异构化反应中的废物的处理。

7. 发明授权

US5395995A Process for the preparation and purification of nitroaromatics 失效
标题翻译：硝基芳族化合物的制备和纯化方法
公开(公告)号：US5395995A
公开(公告)日：1995-03-07
申请号：US059783
申请日：1993-05-10
申请人： Dieter Grenner , Thomas Schieb , Gerhard Wiechers
发明人： Dieter Grenner , Thomas Schieb , Gerhard Wiechers
IPC分类号： C07C201/08 , C07C201/16 , C07C205/06
CPC分类号： C07C201/16 , C07C201/08
摘要： A process for the preparation and purification of nitroaromatics by nitration of the corresponding aromatics and subsequent melt crystallization. The residual melts which occur are recycled.
摘要翻译：通过硝化相应的芳族化合物和随后的熔融结晶来制备和纯化硝基芳族化合物的方法。发生的残余熔体被回收。

8. 发明授权

US6048508A Process for obtaining carbon monoxide and hydrogen 失效
标题翻译：获得一氧化碳和氢气的方法
公开(公告)号：US6048508A
公开(公告)日：2000-04-11
申请号：US878309
申请日：1997-06-18
申请人： Hans-Ulrich Dummersdorf , Hans-Joachim Muller , Dieter Grenner , Gerhard Moormann
发明人： Hans-Ulrich Dummersdorf , Hans-Joachim Muller , Dieter Grenner , Gerhard Moormann
IPC分类号： C01B3/48 , C01B3/50 , C01B3/52 , C01B3/56 , C01B32/40 , C10K1/00 , B01D47/00 , B01J8/00 , C01B3/00 , C01B3/26
CPC分类号： C10K1/00 , C01B3/48 , C01B3/50 , C01B3/52 , C01B3/56 , C01B31/18 , C01B2203/0233 , C01B2203/0244 , C01B2203/0288 , C01B2203/0415 , C01B2203/043 , C01B2203/0445 , C01B2203/047 , C01B2203/0475 , C01B2203/0495 , C01B2203/068 , C01B2203/0811 , C01B2203/0844 , C01B2203/0866 , C01B2203/1241 , C01B2203/127 , C01B2203/143 , C01B2203/145 , C01B2203/146 , C01B2203/147 , C01B2203/82
摘要： The present invention is directed to a process for simultaneously obtaining pure carbon monoxide and pure hydrogen in a steam reformer plant for hydrogen or ammonia generation, having a primary reformer, a secondary reformer and downstream thereof, a CO conversion stage. A part gas stream of the synthesis gas stream, which is discharged from the secondary reformer having a CO content of between 2 and 20 mol. % and is at a temperature of from 200 to 500.degree. C. and a pressure between 15 and 50 bar, is removed between the secondary reformer and the CO conversion stage. The part gas stream is then is cooled to a temperature below 100.degree. C., thereby condensing out the major part of the steam contained in the gas stream. The remaining raw synthesis gas stream is then guided by way of a multistage gas separation plant in which the gas components H.sub.2, residual steam, CH.sub.4, CO.sub.2 and optionally N.sub.2 are separated, either individually or together, from the CO. The separated gas components are then compressed to a pressure which exceeds the pressure in the CO conversion stage and are recombined to form a mixed gas stream. The mixed gas stream is then guided into the CO conversion stage of the steam reformer after being heated to a temperature of from 200 to 500.degree. C. The remaining pure CO fraction is removed in separate manner and may optionally, be supplied for further processing.
摘要翻译：本发明涉及一种在用于氢或氨生成的蒸汽重整器装置中同时获得纯一氧化碳和纯氢的方法，其具有初级重整器，二次重整器及其下游，CO转化级。合成气流的一部分气流，其从二重转化器排出，CO含量为2-20mol。％，并且在二次重整器和CO转化阶段之间除去在200-500℃的温度和15-50巴之间的压力。然后将部分气体流冷却至低于100℃的温度，从而冷凝出包含在气流中的蒸汽的主要部分。然后剩余的原始合成气流通过多级气体分离装置引导，其中气体组分H2，残余蒸汽，CH4，CO2和任选的N 2分别或者一起从CO分离。分离的气体组分是然后压缩至超过CO转化阶段中的压力的压力，并重新组合以形成混合气流。然后将混合气流在加热到200-500℃的温度之后引导到蒸汽重整器的CO转化阶段。剩余的纯CO部分以分离的方式被去除，并且可以任选地被供应用于进一步处理。

9. 发明授权

US4430156A Process for drying pumpable suspensions 失效
标题翻译：干燥可泵送悬浮液的方法
公开(公告)号：US4430156A
公开(公告)日：1984-02-07
申请号：US290444
申请日：1981-08-06
申请人： Clemens Casper , Dieter Grenner , Gerd-Rudiger Klette , Edzard Tholema
发明人： Clemens Casper , Dieter Grenner , Gerd-Rudiger Klette , Edzard Tholema
IPC分类号： B01D1/00 , B01D1/24 , B01D3/06 , F26B7/00 , B01D1/02
CPC分类号： F26B7/00 , B01D3/06 , Y10S159/13 , Y10S159/40 , Y10S159/901
摘要： In a multiphase flow tube for drying pumpable suspensions to form solids having low residual moisture contents, the process uses brief increases in the pressure of the gas stream to prevent blockages.
摘要翻译：在用于干燥可泵送悬浮液以形成具有低残留水分含量的固体的多相流管中，该方法使用气流的压力的短暂增加以防止堵塞。

10. 发明授权

US4168283A Process for drying copper containing catalyst waste 失效
标题翻译：干燥含铜催化剂废物的方法
公开(公告)号：US4168283A
公开(公告)日：1979-09-18
申请号：US947136
申请日：1978-09-29
申请人： Gunter Beilstein , Clemens Casper , Dieter Grenner , Johannes O. Sajben
发明人： Gunter Beilstein , Clemens Casper , Dieter Grenner , Johannes O. Sajben
IPC分类号： B01J31/00 , C02F11/12 , C07B61/00 , C07C17/00 , C07C17/358 , C07C17/38 , C07C19/01 , C07C21/09 , C07C67/00 , C07C21/00
CPC分类号： C07C17/38 , C07C17/358
摘要： Viscous copper-containing catalyst waste is split up into solid particles and gaseous dichlorobutene along a steadily curved flow path, the liquid film flowing along an inner tube wall being driven along by the gas flowing at a higher rate in the core.
摘要翻译：粘性含铜催化剂废物沿着稳定弯曲的流动路径分成固体颗粒和气态二氯丁烯，沿着内管壁流动的液膜沿着在芯中以较高速率流动的气体驱动。

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