Patents by Inventor Ralf Boehling
Ralf Boehling 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: 20250109037Abstract: The present disclosure is directed to methods and systems for reacting elemental nickel particles with sulfuric acid and hydrogen peroxide solutions to produce nickel sulfate products, for example, nickel sulfate products suitable for battery materials.Type: ApplicationFiled: October 4, 2022Publication date: April 3, 2025Applicant: BASF SEInventors: Sabine Frischhut, Julia Hofinger, Ralf Boehling, Stefan Pichlmair
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Publication number: 20240360001Abstract: The present disclosure is directed to processes and systems for dissolving elemental nickel in sulfuric acid solutions to produce nickel sulfate products, and for example. nickel sulfate products suitable for battery materials production.Type: ApplicationFiled: July 28, 2022Publication date: October 31, 2024Applicant: BASF SEInventors: Stefan Pichlmair, Ralf Boehling, Sabine Frischhut, Vincent Smith
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Patent number: 11897778Abstract: The present invention relates to a process for the preparation of a zeolitic material, as well as to a catalyst per se as obtainable or obtained according to said process. Furthermore, the present invention relates to the use of the zeolitic material, in particular as a catalyst.Type: GrantFiled: November 22, 2018Date of Patent: February 13, 2024Assignee: BASF SEInventors: Christian Riemann, Andrei-Nicolae Parvulescu, Ralf Boehling, Ulrich Mueller, Hans-Juergen Luetzel, Stefanie Clade, Christoph Schappert
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Patent number: 11623868Abstract: Disclosed herein is a continuous process for preparing zeolitic material with a CHA-type framework structure comprising SiO2 and X2O3 and the zeolitic material so-obtained. The processes comprises (i) preparing a mixture comprising one or more sources of SiO2, one or more sources of X2O3, seed crystals, one or more tetraalkylammonium cation R5R6R7R8N+-containing compounds as structure directing agent, and a liquid solvent system; (ii) continuously feeding the mixture prepared in (i) into a continuous flow reactor at a liquid hourly space velocity; and (iii) crystallizing the zeolitic material with a CHA-type framework structure from the mixture in the continuous flow reactor.Type: GrantFiled: August 2, 2019Date of Patent: April 11, 2023Assignee: BASF SEInventors: Hannah Schreyer, Andrei-Nicolae Parvulescu, Ulrich Mueller, Christian Riemann, Ralf Boehling, Christoph Schappert, Bernd Hinrichsen, Stefan Dumser, Stefanie Clade
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Patent number: 11091424Abstract: The present invention relates to a method for preparing acetate compounds using ketene.Type: GrantFiled: December 17, 2018Date of Patent: August 17, 2021Assignee: BASF SEInventors: Volker Hickmann, Sumana Roy, Dominik Herbrecht, Michael Acker, Wolfgang Krause, Ralf Boehling, Timon Stork, Stefan Ruedenauer, Ralf Pelzer
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Patent number: 9834798Abstract: A process for preparing sebacic acid by reacting in a first step (i) linoleic acid with water catalyzed by an oleate hydratase to form 10-hydroxy-12-octadecenoic acid, in a second step (ii) pyrolysing the 10-hydroxy-12-octadecenoic acid to 1-octene and 10-oxo-decanoic acid and in a third step (iii) oxidizing the 10-oxo-decanoic acid to sebacic acid.Type: GrantFiled: September 3, 2013Date of Patent: December 5, 2017Assignee: BASF SEInventors: Andrea Piatesi, Kai-Uwe Baldenius, Klaus Ditrich, Alois Kindler, Marta Zajaczkowski-Fischer, Ralf Boehling, Alwin Rehfinger
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Patent number: 9464029Abstract: The invention relates to a process for preparing nitroalkanes by reaction of at least one alkane with at least one nitrating agent in the gas phase, wherein the nitration is carried out in a microstructured reaction zone having parallel channels having hydraulic diameters of less than 2.5 mm and a total specific internal surface area of more than 1600 m2/m3 and the alkane and the nitrating agent are conveyed under a pressure of from 1 bar to 20 bar through the reaction zone and reacted at a temperature of from 150° C. to 650° C. and the reaction products are cooled downstream of the reaction zone and discharged and the at least one nitrating agent is introduced over from two to ten introduction points along the reaction zone.Type: GrantFiled: April 25, 2014Date of Patent: October 11, 2016Assignee: BASF SEInventors: Ralf Boehling, Michael Hayer, Alwin Rehfinger, Michael Schelper, Johann-Peter Melder, Martin Ernst, Joaquim Henrique Teles
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Patent number: 9321656Abstract: Process for preparing an aqueous cobalt sulfate solution having a pH in the range from 5 to 8, wherein (a) metallic cobalt is dissolved in aqueous sulfuric acid in an atmosphere of low-oxygen air, of hydrogen or of inert gas and (b) the resulting acidic cobalt sulfate solution is purified in an ion exchanger.Type: GrantFiled: July 2, 2013Date of Patent: April 26, 2016Assignee: BASF SEInventors: Simon Schroedle, Peter Dransfeld, Gabriele Iffland, Ralf Boehling
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Patent number: 9249029Abstract: The invention relates to an improved process for vaporizing organic compounds and the further conversion thereof.Type: GrantFiled: January 21, 2011Date of Patent: February 2, 2016Assignee: BASF SEInventors: Ralf Boehling, Michael Schipper, Stefan Birnbach, Peter Petersen, Achim Gritsch, Alois Wellisch, Hermann Luyken, Albert Steiner, Peter Zehner
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Publication number: 20150259713Abstract: A process for preparing sebacic acid by reacting in a first step (i) linoleic acid with water catalyzed by an oleate hydratase to form 10-hydroxy-12-octadecenoic acid, in a second step (ii) pyrolysing the 10-hydroxy-12-octadecenoic acid to 1-octene and 10-oxo-decanoic acid and in a third step (iii) oxidizing the 10-oxo-decanoic acid to sebacic acid.Type: ApplicationFiled: September 3, 2013Publication date: September 17, 2015Applicant: BASF SEInventors: Andrea Piatesi, Kai-Uwe Baldenius, Klaus Ditrich, Alois Kindler, Marta Zajaczkowski-Fischer, Ralf Boehling, Alwin Rehfinger
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Patent number: 9120731Abstract: What is proposed is a process for preparing polyether alcohols by conversion of the following reactants: a) one or more alkylene oxides and optionally carbon dioxide and b) one or more H-functional starter substances, in the presence of a catalyst, to form a liquid reaction mixture, in a reaction unit (1), which is characterized in that the reaction unit (1) has internals (2) which form a multitude of microstructured flow channels which bring about multiple splitting of the liquid reaction mixture into component flow paths and recombination thereof in altered arrangement, the multiple splitting and recombination being repeated several times and the microstructured flow channels having a characteristic dimension which is defined as the greatest possible distance of any particle in the liquid reaction mixture from the wall of a flow channel closest to the particle, in the range from 20 to 10 000 ?m, the result being that the flow profile of the liquid reaction mixture approximates to ideal plug flow as a resultType: GrantFiled: August 8, 2011Date of Patent: September 1, 2015Assignee: BASF SEInventors: Achim Loeffler, Michael Stoesser, Wolfgang Loth, Ralf Boehling, Sirus Zarbakhsh
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Publication number: 20150151981Abstract: Process for preparing an aqueous cobalt sulfate solution having a pH in the range from 5 to 8, wherein (a) metallic cobalt is dissolved in aqueous sulfuric acid in an atmosphere of low-oxygen air, of hydrogen or of inert gas and (b) the resulting acidic cobalt sulfate solution is purified in an ion exchanger.Type: ApplicationFiled: July 2, 2013Publication date: June 4, 2015Applicant: BASF SEInventors: Simon Schroedle, Peter Dransfeld, Gabriele Iffland, Ralf Boehling
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Patent number: 9034293Abstract: Process for preparing hydrocyanic acid by catalytic dehydration of gaseous formamide, wherein the dehydration of formamide is coupled with an exothermic reaction by the reactor used in the dehydration comprising two separate fluid paths which are separated by a common reactor wall, with one fluid path being provided for the dehydration of formamide and the second fluid path being provided for the exothermic reaction.Type: GrantFiled: March 30, 2009Date of Patent: May 19, 2015Assignee: BASF SEInventors: Ralf Boehling, Andreas Deckers, Achim Gritsch, Stefan Kotrel
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Patent number: 8772535Abstract: Process for preparing isocyanates by phosgenation of amines, wherein phosgene and amine are brought into contact in at least 2 mixing chambers connected in parallel.Type: GrantFiled: April 9, 2012Date of Patent: July 8, 2014Assignee: BASF SEInventors: Ralf Boehling, Sven Kueber, Stefan Maixner, Eckhard Stroefer, Jochem Henkelmann, Georg Krug, Werner Bolz
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Patent number: 8487127Abstract: The invention relates to a process for preparing isocyanates by reacting the corresponding amines with phosgene in the gas phase, in the presence or absence of an inert medium, which comprises the following steps: (a) vaporization of the amine in a vaporizer, (b) superheating of the amine, (c) mixing of the gaseous amine with the phosgene and introduction into a reaction zone, (d) reaction of amine and phosgene to give isocyanate in the reaction zone, with a reaction mixture comprising isocyanate and hydrogen chloride being formed, (e) cooling of the reaction mixture comprising isocyanate and hydrogen chloride, wherein the vaporizer comprises a vessel in which tubes through which a heating medium flows are comprised, where number and diameter of the tubes are designed so that the tubes have a specific heat transfer area based on the volume through which the amine flows of at least 300 m2/m3.Type: GrantFiled: February 25, 2011Date of Patent: July 16, 2013Assignee: BASF SEInventors: Torsten Mattke, Ralf Boehling, Carsten Knoesche, Vanessa Simone Lehr
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Publication number: 20130131389Abstract: What is proposed is a process for preparing polyether alcohols by conversion of the following reactants: a) one or more alkylene oxides and optionally carbon dioxide and b) one or more H-functional starter substances, in the presence of a catalyst, to form a liquid reaction mixture, in a reaction unit (1), which is characterized in that the reaction unit (1) has internals (2) which form a multitude of microstructured flow channels which bring about multiple splitting of the liquid reaction mixture into component flow paths and recombination thereof in altered arrangement, the multiple splitting and recombination being repeated several times and the microstructured flow channels having a characteristic dimension which is defined as the greatest possible distance of any particle in the liquid reaction mixture from the wall of a flow channel closest to the particle, in the range from 20 to 10 000 ?m, the result being that the flow profile of the liquid reaction mixture approximates to ideal plug flow as a resultType: ApplicationFiled: August 8, 2011Publication date: May 23, 2013Applicant: BASF SEInventors: Achim Loeffler, Michael Stoesser, Wolfgang Loth, Ralf Boehling, Sirus Zarbakhsh
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Patent number: 8212069Abstract: Process for preparing isocyanates by phosgenation of amines, wherein phosgene and amine are brought into contact in at least 2 mixing chambers connected in parallel.Type: GrantFiled: October 18, 2007Date of Patent: July 3, 2012Inventors: Ralf Boehling, Sven Kueber, Stefan Maixner, Eckhard Stroefer, Jochem Henkelmann, Georg Krug, Werner Bolz
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Patent number: 8034980Abstract: A process for preparing polyether polyols by reaction of the following starting materials: a) one or more alkylene oxides and, if appropriate, carbon dioxide and also b) one or more H-functional starter substances, in the presence of a catalyst, in a reaction unit having a plurality of parallel layers A, B which are microstructured so that each layer has a multiplicity of channels which are arranged parallel to one another and form a continuous flow path from one side of the plate to the opposite side of this, wherein a distribution device for introduction of the starting materials and the catalyst is provided at one end of the channels of the layers A and a collection device for the reaction mixture is provided at the other end of these is proposed.Type: GrantFiled: May 22, 2007Date of Patent: October 11, 2011Assignee: BASF AktiengesellschaftInventors: Achim Loeffler, Wolfgang Loth, Ralf Boehling, Thomas Ostrowski, Michael Stoesser, Hartwig Voss, Axel Schimpf
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Publication number: 20110033363Abstract: Process for preparing hydrocyanic acid by catalytic dehydration of gaseous formamide, wherein the dehydration of formamide is coupled with an exothermic reaction by the reactor used in the dehydration comprising two separate fluid paths which are separated by a common reactor wall, with one fluid path being provided for the dehydration of formamide and the second fluid path being provided for the exothermic reaction.Type: ApplicationFiled: March 30, 2009Publication date: February 10, 2011Applicant: BASE SEInventors: Ralf Boehling, Andreas Deckers, Achim Gritsch, Stefan Kotrel
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Publication number: 20100317889Abstract: Process for preparing isocyanates by phosgenation of amines, wherein phosgene and amine are brought into contact in at least 2 mixing chambers connected in parallel.Type: ApplicationFiled: October 18, 2007Publication date: December 16, 2010Applicant: BASF SEInventors: Ralf Boehling, Sven Kueber, Stefan Maixner, Eckhard Stroefer, Jochem Henkelmann, Georg Krug, Werner Bolz