Patents by Inventor Wolfgang Rohde

Wolfgang Rohde 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).

  • Patent number: 12152287
    Abstract: Process for the recovery of transition metal from spent lithium ion batteries containing nickel, wherein said process comprises the steps of (a) heating a lithium containing transition metal oxide material to a temperature in the range of from 400 to 1200° C., (b) treating said heat-treated material with water, (c) treating the solid residue from step (b) with an acid selected from sulfuric acid, hydrochloric acid, nitric acid, methanesulfonic acid, oxalic acid and citric acid, (d) adjusting the pH value to 2.5 to 8, (e) removing compounds of Al, Cu, Fe, Zn or combinations of at least two of the foregoing from the solution or slurry obtained in step (d).
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: November 26, 2024
    Assignee: BASF SE
    Inventors: Wolfgang Rohde, Torben Adermann, Thomas Michael Ryll, Kerstin Schierle-Arndt, Fabian Seeler, Sabine Weiguny, Michael Zeilinger
  • Patent number: 12134803
    Abstract: Process for the recovery of transition metal from spent lithium ion batteries containing nickel, wherein said process comprises the steps of (a) heating a lithium containing transition metal oxide material to a temperature in the range of from 200 to 900° C. in the presence of H2, (b) treatment of the product obtained in step (a) with an aqueous medium, (c) solid-solid separation for the removal of Ni from the solid residue of step (b), (d) recovery of Li as hydroxide or salt from the solution obtained in step (b), (e) extraction of Ni and, if applicable, Co from the solid Ni-concentrate obtained in step (c).
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: November 5, 2024
    Assignee: BASF SE
    Inventors: Wolfgang Rohde, Torben Adermann, Kerstin Schierle-Arndt, Birgit Gerke
  • Publication number: 20240347801
    Abstract: Disclosed herein are processes for removing lithium from a battery material comprising contacting the battery material with an aqueous medium comprising calcium hypochlorite salts to form a mixture, and separating in the mixture solids from liquids to obtain an aqueous solution comprising lithium ions. Also disclosed are processes for recycling lithium ion battery materials.
    Type: Application
    Filed: July 22, 2022
    Publication date: October 17, 2024
    Applicant: BASF SE
    Inventors: Wolfgang Rohde, Dieter G Von Deak, Birgit Gerke
  • Patent number: 11998929
    Abstract: A process for concentrating desired particles containing a carrier-magnetic-separation with the following steps, providing a feedstock which contains the desired particles; adding hydrophobic magnetic particles to the feedstock which results in a loaded feedstock containing agglomerates of the magnetic particles and the desired particles or of the magnetic particles and the undesired material; separating the agglomerates from the loaded feedstock by a separation method which results in isolated agglomerates, breaking up the isolated agglomerates to obtain a suspension having magnetic particles in de-agglomerated form; and separating the magnetic particles from the suspension obtained in step d) by a separation method and provided that at least one separation method is a magnetic separation, and where the process has at least one further separation and where the further separation is s sorting, electric separation, screening, classification, gravity concentration, and flotation.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: June 4, 2024
    Assignee: BASF SE
    Inventors: Wolfgang Rohde, David Johann Gilbert, Bernhard Schuler, Oliver Kuhn, Michael Mentges
  • Publication number: 20230406717
    Abstract: A process for extracting fluoride from a solution of high pH comprising more than 0.1 mol of alkaline hydroxide and/or alcoholate per liter dissolved in a polar solvent is described. The polar solvent is chosen from water, lower alcohols, and mixtures thereof. The process is characterized in that the solution liquid is contacted with a solid phase adsorbent chosen from a) alkaline earth salts comprising carbonate anions, oxo anions, sulphate anions, or phosphate anions, and alkaline earth salts comprising a mixture of such anions or a mixture of such anions with hydroxyl anions, and b) cation binding resins loaded with one or more 3-valent cations, chosen from 3-valent cations of Al, Ga, In, Fe, Cr, Sc, Y, La and lanthanoides.
    Type: Application
    Filed: November 19, 2021
    Publication date: December 21, 2023
    Inventors: Nils-Olof Joachim Born, Mattia Giacomini, Birgit Gerke, Fabian Seeler, Wolfgang Rohde, Kerstin Schierle-Arndt, Regina Vogelsang
  • Publication number: 20230378428
    Abstract: Described herein is a process for the manufacture of a fluoride doped cathode active material, where said process includes the steps of (a) providing a particulate oxide or (oxy)hydroxide of transition metals (TM), where TM includes nickel and at least one metal selected from cobalt and manganese, and where said particulate oxide or (oxy)hydroxide has an average particle diameter (D50) in a range of from 3 to 16 ?m, (b) providing a source of lithium that includes 0.01 to 2.5% by weight of fluoride uniformly dispersed within said source of lithium, (c) mixing said oxide or (oxy)hydroxide of TM with said fluoride-including source of lithium and, optionally, with an additional source of lithium including less fluoride, and, optionally, with one or more dopants based on at least one metal other than lithium, and (d) treating the mixture obtained from step (c) thermally.
    Type: Application
    Filed: September 16, 2021
    Publication date: November 23, 2023
    Inventors: Christoph ERK, Heino SOMMER, Kathrin MICHEL, Frank RAUSCHER, Nils-Olof Joachim BORN, Wolfgang ROHDE, Carsten SUELING, Birgit GERKE
  • Publication number: 20230155202
    Abstract: The present invention relates to a process for the recovery of transition metals from battery materials comprising (0.1) providing a battery material which comprises oxidic nickel and/or cobalt compounds, (1.1) heating the battery material above 350° C. to yield a reduced material which contains nickel and/or cobalt in elemental form, (2.1) carbonylating the reduced material with carbon monoxide optionally in the presence of a reactive gas to yield a solid carbonylation residue and a volatile carbonyl which comprises nickel and/or cobalt carbonyl containing compounds, and (3.1) separating the volatile carbonyl from the solid carbonylation residue by evaporation.
    Type: Application
    Filed: March 23, 2021
    Publication date: May 18, 2023
    Inventors: Wolfgang ROHDE, Torben ADERMANN, Kerstin SCHIERLE-ARNDT, Nuria HUGUET SUBIELA, Andreas KEMPTER, Birgit GERKE
  • Publication number: 20220402773
    Abstract: A process for the recovery of lithium from waste lithium ion batteries or parts thereof is disclosed. The process comprising the steps of A) providing a crude lithium hydroxide as a solid, which contains fluoride; and (B) dissolving the crude lithium hydroxide solid with a lower alcohol such as methanol or ethanol provides good separation of lithium in high purity.
    Type: Application
    Filed: November 17, 2020
    Publication date: December 22, 2022
    Inventors: Wolfgang ROHDE, Regina VOGELSANG, Kerstin SCHIERLE-ARNDT, Mattias VOGES, Birgit GERKE, Anne-Marie Caroline ZIESCHANG, Matthias RAULS
  • Publication number: 20220352570
    Abstract: A process for the recovery of one or more transition metals and lithium from waste lithium ion batteries or parts thereof is disclosed. The process comprising the steps of (a) providing a particulate material containing a transition metal compound and/or transition metal, wherein the transition metal is selected from the group consisting of Ni and Co, and wherein further at least a fraction of said Ni and/or Co, if present, are in an oxidation state lower than +2, e.g. in the metallic state; which particulate material further contains a lithium salt; (b) treating the material provided in step (a) with a polar solvent and optionally an alkaline earth hydroxide; (c) separating the solids from the liquid, optionally followed by a solid-solid separation step; and (d) treating the solids containing the transition metal in a smelting furnace to obtain a metal melt containing Ni and/or Co provides good separation of transition metal as alloy and of lithium in high purity.
    Type: Application
    Filed: July 24, 2020
    Publication date: November 3, 2022
    Inventors: Wolfgang ROHDE, Birgit GERKE, Kerstin SCHIERLE-ARNDT, Matthias VOGES, Regina VOGELSANG, Fabian SEELER, Gareth SMITH, Torben ADERMANN
  • Publication number: 20220274841
    Abstract: A process for the recovery of lithium from waste lithium ion batteries or parts thereof is disclosed. The process comprising the steps of (a) providing a particulate material containing a transition metal compound and/or transition metal, wherein the transition metal is selected from the group consisting of Mn, Ni and Co, and wherein further at least a fraction of said Ni and/or Co, if present, are in an oxidation state lower than +2, and at least a fraction of said Mn, if present, is manganese(II)oxide; which particulate material further contains a lithium salt and a fluoride salt, and which particulate material optionally contains calcium provided that the element ratio calcium to fluorine is 1.
    Type: Application
    Filed: July 24, 2020
    Publication date: September 1, 2022
    Inventors: Wolfgang ROHDE, Birgit GERKE, Kerstin SCHIERLE-ARNDT, Torben ADERMANN, Matthias VOGES, Regina GELSANG
  • Patent number: 11420874
    Abstract: A process for concentrating graphite particles comprising a) providing a feedstock which contains the graphite particles and an undesired material, b) adding hydrophobic magnetic particles to the feedstock which results in a loaded feedstock containing agglomerates of the magnetic particles and the graphite particles, and c) separating the agglomerates from the loaded feedstock by a magnetic field which results in isolated agglomerates.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: August 23, 2022
    Assignee: BASF SE
    Inventors: Wolfgang Rohde, Andreas Luz, Michael Mentges, Oliver Kuhn, Rodrigo Enrique Munizaga
  • Publication number: 20220251681
    Abstract: A process for the recovery of one or more transition metals and lithium from waste lithium ion batteries or parts thereof is disclosed. The process comprising the steps of (a) providing a particulate material containing a transition metal compound and/or transition metal, wherein the transition metal is selected from the group consisting of Ni and Co, and wherein further at least a fraction of said Ni and/or Co, if present, are in an oxidation state lower than +2, e.g.
    Type: Application
    Filed: July 24, 2020
    Publication date: August 11, 2022
    Inventors: Wolfgang ROHDE, Birgit GERKE, Regina VOGELSANG, Matthias VOGES, Kerstin SCHIERLE-ARNDT, Fabian SEELER, Torben ADERMANN
  • Publication number: 20220136084
    Abstract: Process for the recovery of transition metal from cathode active materials containing nickel and lithium, wherein said process comprises the steps of (a) treating a lithium containing transition metal oxide material with a leaching agent (preferably an acid selected from sulfuric acid, hydrochloric acid, nitric acid, methanesulfonic acid, oxalic acid and citric acid), (b) adjusting the pH value to 2.5 to 8, and (c) treating the solution obtained in step (b)with metallic nickel, cobalt or manganese or a combination of at least two of the foregoing.
    Type: Application
    Filed: December 10, 2018
    Publication date: May 5, 2022
    Inventors: Wolfgang ROHDE, Michael ZEILINGER, Torben ADERMANN, Sabine WEIGUNY, Fabian SEELER, Kerstin SCHIERLE-ARNDT, Thomas Michael RYLL
  • Publication number: 20220010407
    Abstract: The present disclosure relates to a process for the recovery of transition metals from batteries comprising treating a transition metal material with a leaching agent to yield a leach which contains dissolved salts of nickel and/or cobalt, injecting hydrogen gas in the leach at a temperature above 100° C. and a partial pressure above 5 bar to obtain a nickel and/or cobalt precipitate in elemental form, and separating the obtained nickel and/or cobalt precipitate.
    Type: Application
    Filed: November 18, 2019
    Publication date: January 13, 2022
    Inventors: Wolfgang ROHDE, Torben ADERMANN, Birgit GERKE
  • Publication number: 20220013820
    Abstract: The present disclosure relates to a process for the recovery of transition metals from batteries comprising treating a transition metal material with a leaching agent to yield a leach which contains dissolved copper impurities, and depositing the dissolved copper impurities as elemental copper on a particulate deposition cathode by electrolysis of an electrolyte containing the leach.
    Type: Application
    Filed: October 8, 2019
    Publication date: January 13, 2022
    Applicant: BASF SE
    Inventors: Wolfgang ROHDE, Domnik BAYER, Torben ADERMANN
  • Publication number: 20210324495
    Abstract: Process for the recovery of transition metal from spent lithium ion batteries containing nickel, wherein said process comprises the steps of (a) heating a lithium containing transition metal oxide material to a temperature in the range of from 200 to 900° C. in the presence of H2, (b) treatment of the product obtained in step (a) with an aqueous medium, (c) solid-solid separation for the removal of Ni from the solid residue of step (b), (d) recovery of Li as hydroxide or salt from the solution obtained in step (b), (e) extraction of Ni and, if applicable, Co from the solid Ni-concentrate obtained in step (c).
    Type: Application
    Filed: July 9, 2019
    Publication date: October 21, 2021
    Applicant: BASF SE
    Inventors: Wolfgang ROHDE, Torben ADERMANN, Kerstin SCHIERLE-ARNDT, Birgit GERKE
  • Publication number: 20210316316
    Abstract: The present invention relates to a process for concentrating desired particles comprising a carrier-magnetic-separation comprising the following steps a) providing a feedstock which contains the desired particles and an undesired material; b) adding hydrophobic magnetic particles to the feedstock which results in a loaded feedstock containing agglomerates of the magnetic particles and the desired particles or of the magnetic particles and the undesired material; c) separating the agglomerates from the loaded feedstock by a separation method which results in isolated agglomerates, where the separation method is selected from sorting, electric separation, magnetic separation, screening, classification, gravity concentration, and flotation; d) breaking up the isolated agglomerates to obtain a suspension comprising the magnetic particles in desagglomerated form; and e) separating the magnetic particles from the suspension obtained in step d) by a separation method selected from sorting, electric separation, magne
    Type: Application
    Filed: August 6, 2019
    Publication date: October 14, 2021
    Inventors: Wolfgang ROHDE, David Johann GILBERT, Bernhard SCHULER, Oliver KUHN, Michael MENTGES
  • Patent number: 11110468
    Abstract: The present invention relates to a process for separating at least one first material from a mixture comprising this at least one first material, at least one second material and at least one third material, which comprises at least the following steps: (A) providing a mixture comprising at least one first material, at least one second material, at least one third material and at least one hydrocarbon in an amount of more than 0.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: September 7, 2021
    Assignee: BASF SE
    Inventors: David Johann Gilbert, Wolfgang Rohde, Michael Mentges, Rodrigo Enrique Munizaga, Oliver Kuhn, Bernhard Schuler
  • Publication number: 20210147960
    Abstract: Process for the recovery of transition metal from spent lithium ion batteries containing nickel, wherein said process comprises the steps of (a) heating a lithium containing transition metal oxide material to a temperature in the range of from 400 to 1200° C., (b) treating said heat-treated material with water, (c) treating the solid residue from step (b)with an acid selected from sulfuric acid, hydrochloric acid, nitric acid, methanesulfonic acid, oxalic acid and citric acid, (d) adjusting the pH value to 2.5 to 8, (e) removing compounds of Al, Cu, Fe, Zn or combinations of at least two of the foregoing from the solution or slurry obtained in step (d).
    Type: Application
    Filed: April 1, 2019
    Publication date: May 20, 2021
    Inventors: Wolfgang ROHDE, Torben ADERMANN, Thomas Michael RYLL, Kerstin SCHIERLE-ARNDT, Fabian SEELER, Sabine WEIGUNY, Michael ZEILINGER
  • Patent number: 10807100
    Abstract: The present invention relates to a process for the separation of at least one valuable matter containing material from a dispersion comprising said at least one valuable matter containing material and at least one second material. The process according to the present invention comprises at least the steps (A) to (E) and the optional steps (F) to (H) which are described herein.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: October 20, 2020
    Assignee: BASF SE
    Inventors: Igor Shishkov, Wolfgang Rohde, Alexej Michailovski, Andreas Luz, Reinhold Rieger, Petra John, Imme Witte