Patents by Inventor Petra JOHN

Petra JOHN 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).

  • SOLID-SOLID SEPARATION OF CARBON FROM A HARDLY SOLUBLE ALKALINE EARTH SULFATE
    Publication number: 20260094889
    Abstract: Disclosed herein is a process for recycling carbon and a hardly soluble alkaline earth sulfate from a leaching residue, including the steps of contacting in an alkaline earth metal contacting step a lithium battery material with an alkaline earth metal including material in a solvent yielding an alkaline earth metal contacted lithium battery material: leaching in a leaching step the alkaline earth metal contacted lithium battery material in sulfuric acid yielding a leaching solution and the leaching residue; separating in a solid-liquid separation step the leaching residue from the leaching solution; suspending in a suspension step the leaching residue in a solvent yielding a suspended leaching residue: contacting in a carrier contacting step the suspended leaching residue with a plurality of at least one type of a carrier body; and separating in a solid-solid separation step at least a part of the carrier-body agglomerates from the suspension.
    Type: Application
    Filed: October 12, 2023
    Publication date: April 2, 2026
    Inventors: Wolfgang ROHDE, Dieter ETTMUELLER, Petra JOHN, Nils-Olof Joachim BORN, Kai BACHMANN, Anna VANDERBRUGGEN
  • MAGNETIC SEPARATION OF PARTICLES SUPPORTED BY SPECIFIC SURFACTANTS
    Publication number: 20250276328
    Abstract: The presently claimed invention relates to a process for separation of at least one valuable matter containing material from a dispersion I comprising said at least one valuable matter containing material and at least one second material, wherein the process comprises at least the step (D) of dispersing a magnetic fraction I, which comprises at least one magnetic particle and the at least one valuable matter containing material, in a dispersion medium II, which contains water and a specific surfactant, to obtain a dispersion II, and the step (E) of separating from the dispersion II a non-magnetic fraction II, which comprises the at least one valuable matter containing material.
    Type: Application
    Filed: March 3, 2022
    Publication date: September 4, 2025
    Inventors: Oliver KUHN, Dieter ETTMUELLER, Petra JOHN, Wolfgang ROHDE
  • Concentrate quality
    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
  • IMPROVEMENT OF CONCENTRATE QUALITY
    Publication number: 20170274389
    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: Application
    Filed: November 26, 2015
    Publication date: September 28, 2017
    Inventors: Igor SHISHKOV, Wolfgang ROHDE, Alexej MICHAILOVSKI, Andreas LUZ, Reinhold RIEGER, Petra JOHN, Imme DOMKE