Patents by Inventor Karl Rausch
Karl Rausch has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240127046Abstract: In example embodiments, techniques are provided for classifying elements of infrastructure models using a convolutional graph neural network (GNN). Graph-structured data structures are generated from infrastructure models, in which nodes represent elements and edges represent contextual relationships among elements (e.g., based on proximity, functionality, parent-child relationships, etc.). During training, the GNN learns embeddings from the nodes and edges of the graph-structured data structures, the embeddings capturing contextual clues that distinguish between elements that may share similar geometry (e.g., cross section, volume, surface area, etc.), yet serve different purposes.Type: ApplicationFiled: October 11, 2022Publication date: April 18, 2024Inventors: Marc-André Lapointe, Louis-Philippe Asselin, Karl-Alexandre Jahjah, Evan Rausch-Larouche
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Patent number: 9815703Abstract: The present invention relates to a method for operating a phosgene generator for producing phosgene by reacting carbon monoxide with chlorine in the gas phase on an activated carbon catalyst arranged in a reaction chamber, in which method, after a predefinable operating period, the phosgene production is at least temporarily interrupted by shutting down the phosgene generator over a shutdown period and, after a predefinable downtime, is resumed by starting up the phosgene generator over a start-up period, wherein the method is characterized in that the activated carbon catalyst, before the phosgene generator is started up, is freed of chlorine by adding carbon monoxide so that, during the start-up period, a maximum concentration of chlorine in the gas stream immediately downstream of the reaction chamber of 1000 ppmv is not exceeded. The invention also relates to the use of the phosgene thus obtained in the production of polycarbonate and isocyanates.Type: GrantFiled: January 16, 2015Date of Patent: November 14, 2017Assignee: Covestro Deutschland AGInventors: Thomas Knauf, Andreas Karl Rausch, Dirk Manzel, Charles Bjoerndahl, Matthias Ehlers, Carlos Alvarez Herrero, Francisco Munoz Velasco
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Patent number: 9796669Abstract: The invention relates to a method for preparing isocyanates by the phosgenation of the corresponding amines in which problems resulting from the formation of deposits in apparatuses of the reaction segment during activation (starting) and deactivation (termination) of the method can be prevented by processing measures, in particular ensuring that there is a surplus of phosgene relative to the phosgenating amine during the critical starting and termination steps of the method.Type: GrantFiled: March 24, 2015Date of Patent: October 24, 2017Assignee: Covestro Deutschland AGInventors: Thomas Knauf, Andreas Karl Rausch, Charles Bjoerndahl, Matthias Ehlers, Peter Plathen, Carlos Alvarez Herrero, Francisco Munoz Velasco
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Patent number: 9695115Abstract: The invention relates to a method for preparing isocyanates by phosgenating the corresponding amines, wherein low-boiling secondary components, excess phosgene, and the co-product hydrogen chloride are separated from the crude liquid isocyanate stream, which is obtained after the phosgenation has occurred, within a maximum of 60 minutes, and wherein the crude liquid isocyanate stream is not exposed to temperatures above 250° C. until said separation.Type: GrantFiled: September 7, 2016Date of Patent: July 4, 2017Assignee: Covestro Deutschland AGInventors: Rainer Bruns, Wolfgang Lorenz, Andreas Karl Rausch, Stefan Wershofen, Tim Loddenkemper
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Publication number: 20170101368Abstract: The invention relates to a method for preparing isocyanates by the phosgenation of the corresponding amines in which problems resulting from the formation of deposits in apparatuses of the reaction segment during activation (starting) and deactivation (termination) of the method can be prevented by processing measures, in particular ensuring that there is a surplus of phosgene relative to the phosgenating amine during the critical starting and termination steps of the method.Type: ApplicationFiled: March 24, 2015Publication date: April 13, 2017Inventors: Thomas Knauf, Andreas Karl Rausch, Charles Bjoerndahl, Matthias Ehlers, Peter Plathen, Carlos Alvarez Herrero, Francisco Munoz Velasco
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Patent number: 9593075Abstract: The invention relates to a method for preparing isocyanates by phosgenating the corresponding amines, wherein low-boiling secondary components, excess phosgene, and the co-product hydrogen chloride are separated from the crude liquid isocyanate stream, which is obtained after the phosgenation has occurred, within a maximum of 60 minutes, and wherein the crude liquid isocyanate stream is not exposed to temperatures above 250° C. until said separation.Type: GrantFiled: March 15, 2013Date of Patent: March 14, 2017Assignee: Covestro Deutschland AGInventors: Rainer Bruns, Wolfgang Lorenz, Andreas Karl Rausch, Stefan Wershofen, Tim Loddenkemper
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Publication number: 20160376228Abstract: The invention relates to a method for preparing isocyanates by phosgenating the corresponding amines, wherein low-boiling secondary components, excess phosgene, and the co-product hydrogen chloride are separated from the crude liquid isocyanate stream, which is obtained after the phosgenation has occurred, within a maximum of 60 minutes, and wherein the crude liquid isocyanate stream is not exposed to temperatures above 250° C. until said separation.Type: ApplicationFiled: September 7, 2016Publication date: December 29, 2016Inventors: Rainer Bruns, Wolfgang Lorenz, Andreas Karl Rausch, Stefan Wershofen, Tim Loddenkemper
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Publication number: 20160340196Abstract: The present invention relates to a method for operating a phosgene generator for producing phosgene by reacting carbon monoxide with chlorine in the gas phase on an activated carbon catalyst arranged in a reaction chamber, in which method, after a predefinable operating period, the phosgene production is at least temporarily interrupted by shutting down the phosgene generator over a shutdown period and, after a predefinable downtime, is resumed by starting up the phosgene generator over a start-up period, wherein the method is characterized in that the activated carbon catalyst, before the phosgene generator is started up, is freed of chlorine by adding carbon monoxide so that, during the start-up period, a maximum concentration of chlorine in the gas stream immediately downstream of the reaction chamber of 1000 ppmv is not exceeded. The invention also relates to the use of the phosgene thus obtained in the production of polycarbonate and isocyanates.Type: ApplicationFiled: January 16, 2015Publication date: November 24, 2016Inventors: Thomas Knauf, Andreas Karl Rausch, Dirk Manzel, Charles Bjoerndahl, Matthias Ehlers, Carlos Alvarez Herrero, Francisco Munoz Velasco
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Patent number: 9328064Abstract: The invention relates to a process for the preparation of isocyanates by reaction of the corresponding amines with phosgene in the gas phase, wherein a diluent containing between 90.0000% by weight and 99.9999% by weight of substances which are inert in the phosgenation process and between 0.0001% by weight and 10.0000% by weight of oxygen is present during the conversion of the amine into the gas phase and the molar ratio of amine to oxygen (O2) is ?1,000:1.Type: GrantFiled: July 2, 2015Date of Patent: May 3, 2016Assignee: Bayer MaterialScience AGInventors: Rainer Bruns, Wolfgang Lorenz, Andreas Karl Rausch, Stefan Wershofen, Tim Loddenkemper
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Publication number: 20150299111Abstract: The invention relates to a process for the preparation of isocyanates by reaction of the corresponding amines with phosgene in the gas phase, wherein a diluent containing between 90.0000% by weight and 99.9999% by weight of substances which are inert in the phosgenation process and between 0.0001% by weight and 10.0000% by weight of oxygen is present during the conversion of the amine into the gas phase and the molar ratio of amine to oxygen (O2) is ?1,000:1.Type: ApplicationFiled: July 2, 2015Publication date: October 22, 2015Inventors: Rainer BRUNS, Wolfgang LORENZ, Andreas Karl RAUSCH, Stefan WERSHOFEN, Tim LODDENKEMPER
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Publication number: 20150291512Abstract: The invention relates to a method for preparing isocyanates by phosgenating the corresponding amines, wherein low-boiling secondary components, excess phosgene, and the co-product hydrogen chloride are separated from the crude liquid isocyanate stream, which is obtained after the phosgenation has occurred, within a maximum of 60 minutes, and wherein the crude liquid isocyanate stream is not exposed to temperatures above 250° C. until said separation.Type: ApplicationFiled: March 15, 2013Publication date: October 15, 2015Applicant: Bayer Intellectual Property GmbHInventors: Rainer Burns, Wolfgang Orenz, Andreas KArl Rausch, Stefan Wershofen
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Patent number: 9139508Abstract: The present invention relates to a process and a plant for the production, in particular the continuous production, of nitrobenzene by means of adiabatic nitration of benzene with nitric acid in the presence of sulfuric acid, in which, following the nitration, a multi-stage concentration of the sulfuric acid is carried out by means of heating at a pressure that is reduced as compared with ambient pressure, and wherein the heating takes place using the heat generated in the adiabatic nitration of benzene.Type: GrantFiled: January 28, 2013Date of Patent: September 22, 2015Assignee: Bayer Intellectual Property GmbHInventors: Bernd Pennemann, Juergen Munnig, Wulf Dietrich, Andreas Karl Rausch
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Patent number: 9102594Abstract: The invention relates to a process for the preparation of isocyanates by reaction of the corresponding amines with phosgene in the gas phase, wherein a diluent containing between 90.0000% by weight and 99.9999% by weight of substances which are inert in the phosgenation process and between 0.0001% by weight and 10.0000% by weight of oxygen is present during the conversion of the amine into the gas phase and the molar ratio of amine to oxygen (O2) is ?1,000:1.Type: GrantFiled: April 29, 2011Date of Patent: August 11, 2015Assignee: Bayer Intellectual Property GmbHInventors: Rainer Bruns, Wolfgang Lorenz, Andreas Karl Rausch, Stefan Wershofen, Tim Loddenkemper
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Patent number: 9051243Abstract: Isocyanates are produced by reacting a primary amine with phosgene in the gas phase. In this process, the amine is vaporized and then superheated prior to introduction into the reactor. The amine is superheated to a temperature at least 10° C. above dew point before entry into the reactor. A pressure difference between the vaporizer and entry into the reactor of from 1 to 500 mbar is maintained.Type: GrantFiled: July 6, 2010Date of Patent: June 9, 2015Assignee: Bayer MaterialScience AGInventors: Rainer Bruns, Wolfgang Lorenz, Andreas Karl Rausch
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Patent number: 9039904Abstract: The invention relates to a method for treating wastewater containing nitroaromatics and nitrohydroxyaromatics, as for example arises in the production of nitroaromatics or in the production of nitrohydroxyaromatics, by a two-stage method consisting of pre-reduction and wet oxidation.Type: GrantFiled: January 27, 2010Date of Patent: May 26, 2015Assignee: Bayer MaterialScience AGInventors: Andreas Karl Rausch, Christoph Blöcher
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Publication number: 20140357905Abstract: The present invention relates to a process and a plant for the production, in particular the continuous production, of nitrobenzene by means of adiabatic nitration of benzene with nitric acid in the presence of sulfuric acid, in which, following the nitration, a multi-stage concentration of the sulfuric acid is carried out by means of heating at a pressure that is reduced as compared with ambient pressure, and wherein the heating takes place using the heat generated in the adiabatic nitration of benzene.Type: ApplicationFiled: January 28, 2013Publication date: December 4, 2014Inventors: Bernd Pennemann, Juergen Munnig, Wulf Dietrich, Andreas Karl Rausch
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Patent number: 8729309Abstract: The invention relates to a process for the continuous production of nitrobenzene by nitration of benzene with a mixture of nitric acid and sulfuric acid under adiabatic conditions, in which unreacted benzene is separated from the crude product obtained after phase separation before washing thereof, using the adiabatic heat of reaction.Type: GrantFiled: July 26, 2011Date of Patent: May 20, 2014Assignee: Bayer Intellectual Property GmbHInventors: Thomas Knauf, Alexandre Racoes, Andreas Karl Rausch, Dietrich Wulf
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Patent number: 8651264Abstract: A transport device and a method for the transport of articles are disclosed. The transport device is provided with a plurality of single lanes for the single articles having a width (BE). Each single lane is provided with one separating element. Adjacent single lanes are separated by one of the separating elements. The widths (BE) are adjustable with at least one displacing means. At least two adjacent single lanes form a group of lanes with a width (BG). Several of the groups of lanes formed in such a way are slidable to each other. The widths are adjustable with at least a further displacing means.Type: GrantFiled: August 27, 2009Date of Patent: February 18, 2014Assignee: Krones AGInventors: Herbert Spindler, Karl Rausch, Josef Mayer, Martin Bauer, Josef Unterseher
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Patent number: 8558047Abstract: A process is provided for the production of hydrocarbons from synthesis gas wherein the synthesis gas is fed to a reactor in which a catalyst acts on the feed at a temperature of between 160° C. and 400° C. and a pressure of between 1 bar and 5 bar. The feed includes a compound containing one or both nitrogen and phosphorus added to the reactor with the synthesis gas. The compound containing nitrogen typically constitutes at least 1 vol % and preferably of the order of 4 to 20 vol % or more of the feed. The carbonaceous gas may be carbon monoxide with a ratio of hydrogen to carbon monoxide in the synthesis gas of from 0.5:1 to 5:1. The catalyst is preferably a supported cobalt catalyst and may be modified with a promoter. The process produces an enhanced proportion of olefins, in the hydrocarbons produced.Type: GrantFiled: April 15, 2009Date of Patent: October 15, 2013Assignee: University of Cape TownInventors: Michael Christian Maximillian Claeys, Eric Wilhelmus Josephus Van Steen, Frank Roessner, Andreas Karl Rausch
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Publication number: 20130204043Abstract: The present invention relates to a continuous process for the production of nitrobenzene by nitration of benzene with nitric acid or mixtures of nitric acid and sulfuric acid to give a crude nitrobenzene, washing of the crude nitrobenzene by means of at least one of each of an acid, alkaline and neutral washing, there being obtained a pre-purified nitrobenzene which, as well as containing nitrobenzene, at least contains also low boilers, optionally middle boilers as well as high boilers and salts, wherein the pre-purified nitrobenzene is purified further by separating off low boilers in a distillation apparatus by evaporation of the low boilers, and separation of nitrobenzene from the resulting further purified nitrobenzene in a distillation apparatus by partial evaporation of nitrobenzene, wherein pure nitrobenzene is removed from the distillation apparatus in gaseous form and is subsequently condensed, and wherein the non-evaporated portion of the further purified nitrobenzene is fed back into the washing aType: ApplicationFiled: July 26, 2011Publication date: August 8, 2013Applicant: Bayer Intellectual Property GmbH Creative Campus MonheimInventors: Thomas Knauf, Michael Merkel, Andreas Karl Rausch, Peter Lehner, Jürgen Münnig