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1. 发明申请

US20070265465A1 Process for the production of isocyanates 审中-公开
标题翻译：生产异氰酸酯的方法
公开(公告)号：US20070265465A1
公开(公告)日：2007-11-15
申请号：US11801636
申请日：2007-05-10
申请人： Berthold Keggenhoff , Heinrich Lokum , Matthias Bohm
发明人： Berthold Keggenhoff , Heinrich Lokum , Matthias Bohm
IPC分类号： C07C263/10
CPC分类号： C07C263/10 , C07C265/14
摘要： Isocyanates, preferably diisocyanates and polyisocyanates of the diphenylmethane series (MDI), are produced by reaction of amines dissolved in a solvent with phosgene in the same solvent to form the corresponding isocyanates. Hydrogen chloride and excess phosgene are subsequently removed from the reaction mixture to obtain a crude isocyanate-containing solution. Subsequently, the crude isocyanate-containing solution is separated by distillation into isocyanates and solvent. The solvent is recycled and used for the production of solutions of the amines and of phosgene. The solvent being recycled is treated to reduce the phosgene and diisocyanate contents before being used for the production of the solution of the amine.
摘要翻译：二苯基甲烷系列（MDI）的异氰酸酯，优选二异氰酸酯和多异氰酸酯是通过将溶于溶剂中的胺与光气在相同溶剂中反应形成相应的异氰酸酯而制备的。随后从反应混合物中除去氯化氢和过量的光气，得到粗的含异氰酸酯的溶液。随后，将含粗异氰酸酯的溶液通过蒸馏分离成异氰酸酯和溶剂。将溶剂再循环并用于生产胺和光气的溶液。在用于制备胺溶液之前，处理回收的溶剂以降低光气和二异氰酸酯含量。

2. 发明授权

US07442835B2 Process and apparatus for the production of phosgene 有权
标题翻译：用于生产光气的方法和设备
公开(公告)号：US07442835B2
公开(公告)日：2008-10-28
申请号：US11211898
申请日：2005-08-25
申请人： Berthold Keggenhoff , Heinrich Lokum , Jürgen Münnig
发明人： Berthold Keggenhoff , Heinrich Lokum , Jürgen Münnig
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。

3. 发明申请

US20100298596A1 PROCESS FOR THE PRODUCTION OF ISOCYANATES 审中-公开
标题翻译：生产异氰酸酯的方法
公开(公告)号：US20100298596A1
公开(公告)日：2010-11-25
申请号：US12851604
申请日：2010-08-06
申请人： Berthold Keggenhoff , Heinrich Lokum , Matthias Böhm
发明人： Berthold Keggenhoff , Heinrich Lokum , Matthias Böhm
IPC分类号： C07C263/10
CPC分类号： C07C263/10 , C07C265/14
摘要： Isocyanates, preferably diisocyanates and polyisocyanates of the diphenylmethane series (MDI), are produced by reaction of amines dissolved in a solvent with phosgene in the same solvent to form the corresponding isocyanates. Hydrogen chloride and excess phosgene are subsequently removed from the reaction mixture to obtain a crude isocyanate-containing solution. Subsequently, the crude isocyanate-containing solution is separated by distillation into isocyanates and solvent. The solvent is recycled and used for the production of solutions of the amines and of phosgene. The solvent being recycled is treated to reduce the phosgene and diisocyanate contents before being used for the production of the solution of the amine.
摘要翻译：二苯基甲烷系列（MDI）的异氰酸酯，优选二异氰酸酯和多异氰酸酯是通过将溶于溶剂中的胺与光气在相同溶剂中反应形成相应的异氰酸酯而制备的。随后从反应混合物中除去氯化氢和过量的光气，得到粗的含异氰酸酯的溶液。随后，将含粗异氰酸酯的溶液通过蒸馏分离成异氰酸酯和溶剂。将溶剂再循环并用于生产胺和光气的溶液。在用于制备胺溶液之前，处理回收的溶剂以降低光气和二异氰酸酯含量。

4. 发明申请

US20060047170A1 Process and apparatus for the production of phosgene 有权
标题翻译：用于生产光气的方法和设备
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。

5. 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。

6. 发明授权

US07312362B2 Process for the production of di- and polyamines of the diphenylmethane series 有权
标题翻译：生产二苯甲烷系列二胺和多胺的方法
公开(公告)号：US07312362B2
公开(公告)日：2007-12-25
申请号：US11657338
申请日：2007-01-24
申请人： Berthold Keggenhoff , Richard Adamson , Rudolf Uchdorf , Fritz Pohl
发明人： Berthold Keggenhoff , Richard Adamson , Rudolf Uchdorf , Fritz Pohl
IPC分类号： C07C209/24
CPC分类号： C07C209/78 , C07C209/84 , C07C263/10 , C07C211/50 , C07C265/14
摘要： The present invention relates to a process for the production of mixtures of di- and polyamines of the diphenylmethane series (MDA) containing less than 1,000 ppm of water and less than 200 ppm of aniline by reaction of aniline and formaldehyde in the presence of acid catalysts and subsequent separation of the acid catalyst and subsequent distillative separation of water and aniline in an at least a two-stage distillation including a flash evaporation and subsequent cooling.
摘要翻译：本发明涉及一种在酸催化剂存在下通过苯胺和甲醛的反应生产含有少于1,000ppm水和小于200ppm苯胺的二苯基甲烷系列（MDA）的二胺和多胺的混合物的方法随后分离酸催化剂，随后在包括闪蒸和随后冷却的至少两阶段蒸馏中进行水和苯胺的蒸馏分离。

7. 发明授权

US06719957B2 Process for purification of anhydrous hydrogen chloride gas 有权
公开(公告)号：US06719957B2
公开(公告)日：2004-04-13
申请号：US10124795
申请日：2002-04-17
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： C01B707
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.

8. 发明授权

US06359177B1 Process for separating mixtures of materials having different boiling points 有权
标题翻译：用于分离具有不同沸点的材料的混合物的方法
公开(公告)号：US06359177B1
公开(公告)日：2002-03-19
申请号：US09738297
申请日：2000-12-15
申请人： Bill L. Brady , Guenther Weymans , Berthold Keggenhoff
发明人： Bill L. Brady , Guenther Weymans , Berthold Keggenhoff
IPC分类号： C07C20900
CPC分类号： C07C209/86 , C07C211/50
摘要： A mixture of materials having different boiling points is separated into fractions having different boiling points. The separated fraction containing the desired product is stripped using the vapors of a lower boiling fraction. The process of the present invention is particularly useful for recovering a desired isomer or isomer mixture from a technical mixture obtained during production of an aromatic amine such as toluenediamine. Little or no unwanted isomer or by-product is present in the isomer or isomer mixture product of this process.
摘要翻译：具有不同沸点的材料的混合物被分离成具有不同沸点的级分。使用较低沸点馏分的蒸汽汽提含有所需产物的分离馏分。本发明的方法特别可用于从芳族胺如甲苯二胺制备期间获得的技术混合物中回收所需的异构体或异构体混合物。在该方法的异构体或异构体混合物产物中不存在或不存在不需要的异构体或副产物。

9. 发明授权

US10143987B2 Method for dividing fluid streams 有权
公开(公告)号：US10143987B2
公开(公告)日：2018-12-04
申请号：US12544267
申请日：2009-08-20
申请人： Berthold Keggenhoff , Jeffrey Bolton , Friedhelm Steffens , Marc Seekamp , Gerhard Ruffert , Jürgen Kern , Thomas Runowski
发明人： Berthold Keggenhoff , Jeffrey Bolton , Friedhelm Steffens , Marc Seekamp , Gerhard Ruffert , Jürgen Kern , Thomas Runowski
IPC分类号： B01J8/44 , B01D3/00 , F26B3/08
摘要： One or more fluid streams are uniformly divided into two or more partial fluid streams in chemical apparatuses in a manner such that there is a reduced tendency to form deposits. Division of such stream(s) is achieved by using a distributor device that includes at least one plate having two or more openings which openings are rounded or chamfered on at least one side.

10. 发明授权

US08153838B2 Process for producing isocyanates 有权
标题翻译：异氰酸酯的制备方法
公开(公告)号：US08153838B2
公开(公告)日：2012-04-10
申请号：US12164716
申请日：2008-06-30
申请人： Andreas Bulan , Rainer Weber , Wolfgang Lorenz , Gerhard Moormann , Friedhelm Kämper , Berthold Keggenhoff
发明人： Andreas Bulan , Rainer Weber , Wolfgang Lorenz , Gerhard Moormann , Friedhelm Kämper , Berthold Keggenhoff
IPC分类号： C07C263/00
CPC分类号： C07C263/10 , C07C263/20 , C25B1/26 , C07C265/14
摘要： An isocyanate is produced by: (a) reacting chlorine with carbon monoxide to form phosgene, (b) reacting the phosgene with an organic amine to form an isocyanate and hydrogen chloride, (c) separating the isocyanate and hydrogen chloride, (d) optionally, purifying the hydrogen chloride, (e) preparing an aqueous solution of the hydrogen chloride, (f) optionally, purifying the aqueous solution of hydrogen chloride, (g) subjecting the aqueous hydrogen chloride solution to electrochemical oxidation to form chlorine, and (h) returning at least a portion of the chlorine produced in (g) to (a).
摘要翻译：通过以下方法制备异氰酸酯：（a）使氯与一氧化碳反应以形成光气，（b）使光气与有机胺反应形成异氰酸酯和氯化氢，（c）将异氰酸酯和氯化氢分离，（d），纯化氯化氢，（e）制备氯化氢水溶液，（f）任选地，纯化氯化氢水溶液，（g）使氯化氢水溶液进行电化学氧化形成氯，和（h ）将（g）至（a）中产生的氯的至少一部分返回。

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