Patents by Inventor Thomas Pierau

Thomas Pierau 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: 20240092651
    Abstract: The invention relates to a feedstock composite comprising a metal oxide fraction and a carbonaceous fraction, a binder composition and the use thereof for obtaining the feedstock composite. Further, the invention refers to a method for obtaining the feedstock composite.
    Type: Application
    Filed: September 19, 2023
    Publication date: March 21, 2024
    Applicant: Kronos International, Inc.
    Inventors: Frank Landwehr, Thomas Pierau, Beawer Barwari, Mitja Medved, Oliver Gnotke
  • Publication number: 20240034638
    Abstract: The invention relates to a method for recovering chlorine from hydrogen chloride generated in carbochlorination processes. Further, the invention refers to the use of this method for recovering chlorine from hydrogen chloride generated in a carbochlorination process.
    Type: Application
    Filed: July 25, 2023
    Publication date: February 1, 2024
    Applicant: Kronos International, Inc.
    Inventors: Thomas Pierau, Mitja Medved
  • Publication number: 20230416107
    Abstract: The invention relates to a method for treating a residue obtained from the chloride process, wherein the residue comprises the components titanium dioxide, coke, an inert metal oxide, and an iron-containing component. Further, the invention refers to the use of this method to separate the components contained in said residue, and to the use of the separated components in the chloride process for obtaining titanium dioxide.
    Type: Application
    Filed: June 23, 2023
    Publication date: December 28, 2023
    Applicant: Kronos International, Inc.
    Inventors: Thomas Pierau, Frank Landwehr, Mitja Medved
  • Patent number: 10905984
    Abstract: The invention is related to a method and vibratory apparatus for the improved solid-liquid filtration of filter cakes, especially for dewatering finely divided thixotropic filter cakes, with the aid of a vibratory apparatus. Further, the invention relates to a filtration apparatus having a vibratory apparatus as described herein, and to the use of the vibratory apparatus for the solid-liquid filtration of filter cakes.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: February 2, 2021
    Inventors: Frank Landwehr, Mitja Medved, Thomas Pierau
  • Publication number: 20180105435
    Abstract: The invention relates to a method for separating valuable metal chlorides, particularly titanium tetrachloride and niobium pentachloride, from solid residues, in particular the filter dust generated during the chlorination of raw materials containing iron and titanium in the production of titanium dioxide using the chloride process.
    Type: Application
    Filed: October 17, 2016
    Publication date: April 19, 2018
    Applicant: Kronos International, Inc.
    Inventors: Mitja Medved, Thomas Pierau
  • Patent number: 9738542
    Abstract: The invention relates to a method for the further processing of iron sulfate heptahydrate into iron sulfate monohydrate. An aqueous solution or suspension of iron sulfate heptahydrate is formed and heated in a pressure vessel to a temperature above its boiling temperature at atmospheric pressure and where solid iron sulfate monohydrate and a solution are formed. The solid iron sulfate monohydrate is separated from the solution and fed into a pressure vessel at a temperature above the boiling temperature of the solution at the pressure in the pressure vessel, which is lower than the pressure during separation.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: August 22, 2017
    Assignee: Kronos International, Inc.
    Inventors: Thomas Pierau, Mitja Medved
  • Publication number: 20170157541
    Abstract: The invention is related to a method and vibratory apparatus for the improved solid-liquid filtration of filter cakes, especially for dewatering finely divided thixotropic filter cakes, with the aid of a vibratory apparatus. Further, the invention relates to a filtration apparatus having a vibratory apparatus as described herein, and to the use of the vibratory apparatus for the solid-liquid filtration of filter cakes.
    Type: Application
    Filed: November 28, 2016
    Publication date: June 8, 2017
    Inventors: Frank Landwehr, Mitja Medved, Thomas Pierau
  • Publication number: 20160159661
    Abstract: The invention relates to a method for the further processing of iron sulfate heptahydrate into iron sulfate monohydrate. An aqueous solution or suspension of iron sulfate heptahydrate is formed and heated in a pressure vessel to a temperature above its boiling temperature at atmospheric pressure and where solid iron sulfate monohydrate and a solution are formed. The solid iron sulfate monohydrate is separated from the solution and fed into a pressure vessel at a temperature above the boiling temperature of the solution at the pressure in the pressure vessel, which is lower than the pressure during separation.
    Type: Application
    Filed: December 3, 2015
    Publication date: June 9, 2016
    Inventors: Thomas Pierau, Mitja Medved