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).

  • Publication number: 20250109037
    Abstract: 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: Application
    Filed: October 4, 2022
    Publication date: April 3, 2025
    Applicant: BASF SE
    Inventors: Sabine Frischhut, Julia Hofinger, Ralf Boehling, Stefan Pichlmair
  • Publication number: 20240360001
    Abstract: 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: Application
    Filed: July 28, 2022
    Publication date: October 31, 2024
    Applicant: BASF SE
    Inventors: Stefan Pichlmair, Ralf Boehling, Sabine Frischhut, Vincent Smith
  • Patent number: 11897778
    Abstract: 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: Grant
    Filed: November 22, 2018
    Date of Patent: February 13, 2024
    Assignee: BASF SE
    Inventors: Christian Riemann, Andrei-Nicolae Parvulescu, Ralf Boehling, Ulrich Mueller, Hans-Juergen Luetzel, Stefanie Clade, Christoph Schappert
  • Patent number: 11623868
    Abstract: 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: Grant
    Filed: August 2, 2019
    Date of Patent: April 11, 2023
    Assignee: BASF SE
    Inventors: Hannah Schreyer, Andrei-Nicolae Parvulescu, Ulrich Mueller, Christian Riemann, Ralf Boehling, Christoph Schappert, Bernd Hinrichsen, Stefan Dumser, Stefanie Clade
  • Patent number: 11091424
    Abstract: The present invention relates to a method for preparing acetate compounds using ketene.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: August 17, 2021
    Assignee: BASF SE
    Inventors: Volker Hickmann, Sumana Roy, Dominik Herbrecht, Michael Acker, Wolfgang Krause, Ralf Boehling, Timon Stork, Stefan Ruedenauer, Ralf Pelzer
  • Patent number: 9834798
    Abstract: 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: Grant
    Filed: September 3, 2013
    Date of Patent: December 5, 2017
    Assignee: BASF SE
    Inventors: Andrea Piatesi, Kai-Uwe Baldenius, Klaus Ditrich, Alois Kindler, Marta Zajaczkowski-Fischer, Ralf Boehling, Alwin Rehfinger
  • Patent number: 9464029
    Abstract: 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: Grant
    Filed: April 25, 2014
    Date of Patent: October 11, 2016
    Assignee: BASF SE
    Inventors: Ralf Boehling, Michael Hayer, Alwin Rehfinger, Michael Schelper, Johann-Peter Melder, Martin Ernst, Joaquim Henrique Teles
  • Patent number: 9321656
    Abstract: 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: Grant
    Filed: July 2, 2013
    Date of Patent: April 26, 2016
    Assignee: BASF SE
    Inventors: Simon Schroedle, Peter Dransfeld, Gabriele Iffland, Ralf Boehling
  • Patent number: 9249029
    Abstract: The invention relates to an improved process for vaporizing organic compounds and the further conversion thereof.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: February 2, 2016
    Assignee: BASF SE
    Inventors: Ralf Boehling, Michael Schipper, Stefan Birnbach, Peter Petersen, Achim Gritsch, Alois Wellisch, Hermann Luyken, Albert Steiner, Peter Zehner
  • Publication number: 20150259713
    Abstract: 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: Application
    Filed: September 3, 2013
    Publication date: September 17, 2015
    Applicant: BASF SE
    Inventors: Andrea Piatesi, Kai-Uwe Baldenius, Klaus Ditrich, Alois Kindler, Marta Zajaczkowski-Fischer, Ralf Boehling, Alwin Rehfinger
  • Patent number: 9120731
    Abstract: 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 result
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: September 1, 2015
    Assignee: BASF SE
    Inventors: Achim Loeffler, Michael Stoesser, Wolfgang Loth, Ralf Boehling, Sirus Zarbakhsh
  • Publication number: 20150151981
    Abstract: 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: Application
    Filed: July 2, 2013
    Publication date: June 4, 2015
    Applicant: BASF SE
    Inventors: Simon Schroedle, Peter Dransfeld, Gabriele Iffland, Ralf Boehling
  • Patent number: 9034293
    Abstract: 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: Grant
    Filed: March 30, 2009
    Date of Patent: May 19, 2015
    Assignee: BASF SE
    Inventors: Ralf Boehling, Andreas Deckers, Achim Gritsch, Stefan Kotrel
  • Patent number: 8772535
    Abstract: 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: Grant
    Filed: April 9, 2012
    Date of Patent: July 8, 2014
    Assignee: BASF SE
    Inventors: Ralf Boehling, Sven Kueber, Stefan Maixner, Eckhard Stroefer, Jochem Henkelmann, Georg Krug, Werner Bolz
  • Patent number: 8487127
    Abstract: 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: Grant
    Filed: February 25, 2011
    Date of Patent: July 16, 2013
    Assignee: BASF SE
    Inventors: Torsten Mattke, Ralf Boehling, Carsten Knoesche, Vanessa Simone Lehr
  • Publication number: 20130131389
    Abstract: 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 result
    Type: Application
    Filed: August 8, 2011
    Publication date: May 23, 2013
    Applicant: BASF SE
    Inventors: Achim Loeffler, Michael Stoesser, Wolfgang Loth, Ralf Boehling, Sirus Zarbakhsh
  • Patent number: 8212069
    Abstract: 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: Grant
    Filed: October 18, 2007
    Date of Patent: July 3, 2012
    Inventors: Ralf Boehling, Sven Kueber, Stefan Maixner, Eckhard Stroefer, Jochem Henkelmann, Georg Krug, Werner Bolz
  • Patent number: 8034980
    Abstract: 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: Grant
    Filed: May 22, 2007
    Date of Patent: October 11, 2011
    Assignee: BASF Aktiengesellschaft
    Inventors: Achim Loeffler, Wolfgang Loth, Ralf Boehling, Thomas Ostrowski, Michael Stoesser, Hartwig Voss, Axel Schimpf
  • Publication number: 20110033363
    Abstract: 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: Application
    Filed: March 30, 2009
    Publication date: February 10, 2011
    Applicant: BASE SE
    Inventors: Ralf Boehling, Andreas Deckers, Achim Gritsch, Stefan Kotrel
  • Publication number: 20100317889
    Abstract: 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: Application
    Filed: October 18, 2007
    Publication date: December 16, 2010
    Applicant: BASF SE
    Inventors: Ralf Boehling, Sven Kueber, Stefan Maixner, Eckhard Stroefer, Jochem Henkelmann, Georg Krug, Werner Bolz