Patents by Inventor Armin Olbrich

Armin Olbrich 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).

  • Spheroidally agglomerated basic cobalt(II) carbonate and spheroidally agglomerated cobalt(II) hydroxide, a process for producing them and their use
    Publication number: 20040131530
    Abstract: The present invention relates to basic cobalt(II) carbonate, agglomerated from fine primary particles and of general composition Co[(OH)2]a[CO3]1-a, where 0.1≦a≦0.9, and to spherodial cobalt(II) hydroxide, to a process for producing them and to their use.
    Type: Application
    Filed: December 16, 2003
    Publication date: July 8, 2004
    Inventors: Astrid Gorge, Juliane Meese-Marktscheffel, Dirk Naumann, Armin Olbrich, Frank Schrumpf
  • Method for producing nickel hydroxides
    Patent number: 6752918
    Abstract: A process is described for the production of spherical nickel hydroxide by anodic dissolution of a nickel electrode and precipitation of nickel hydroxide in a completely intermixed electrolysis cell, wherein an electrolysis brine is used which has a content of 20 to 50 g/l of chloride ions and 1 to 7 g/l of ammonia with a pH value of 9.5 to 11.5 and a temperature of 45 to 60° C.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: June 22, 2004
    Assignee: H. C. Starck GmbH
    Inventors: Armin Olbrich, Viktor Stoller, Juliane Meese-Marktscheffel, Frank Schrumpf, Josef Schmoll, Gerhard Gille
  • Spheroidally agglomerated basic cobalt(II) carbonate and spheroidally agglomerated cobalt(II) hydroxide, process for their production and their use
    Patent number: 6699453
    Abstract: The present invention relates to basic cobalt(II) carbonate, agglomerated from fine primary particles and of general composition Co[(OH)2]a[CO3]1−a, where 0.1≦a≦0.9, and to spheroidal cobalt(II) hydroxide, to a process for producing them and to their use.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: March 2, 2004
    Assignee: H.C. Starck GmbH & Co KG
    Inventors: Astrid Görge, Juliane Meese-Marktscheffel, Dirk Naumann, Armin Olbrich, Frank Schrumpf
  • Process for the electrochemical decomposition of powders and electrolysis cells suitable therefor
    Publication number: 20030196902
    Abstract: Process for the electrochemical decomposition of precursors in powder form by introducing a powder batch between two electrodes of an electrolysis cell, electrodes being designed to be liquid-permeable, and the electrolyte flowing through the powder batch perpendicularly to the electrode surfaces, and electrolysis cell suitable therefor, which is essentially characterized in that at least one electrode has a structure which consists of a supporting pierced plate (5), an electrode plate (3) provided with perforations, and a filter cloth (4) arranged between the supporting pierced plate (5) and the electrode plate (3), and in that the cathode (6) is shielded from the cell by means of a liquid-permeable separator (7).
    Type: Application
    Filed: April 15, 2003
    Publication date: October 23, 2003
    Inventors: Armin Olbrich, Juliane Meese-Marktscheffel, Gerhard Gille, Viktor Stoller, Wolfgang Mathy
  • Method for producing metal hydroxides or alkaline metal carbonates
    Publication number: 20030141199
    Abstract: The invention relates to a method for producing metal hydroxides or alkaline metal carbonates by anode dissolution of the corresponding metals and precipitation of the hydroxides or alkaline carbonates in an aqueous medium. The anode dissolution of the metal components is carried out in the anode compartment of a three-compartment electrolytic cell. An aqueous auxiliary salt solution is fed to an intermediate compartment that is disposed between the anode compartment and the cathode compartment and that is separated therefrom by a porous membrane. An at least not alkaline metal salt solution is continuously taken from the anode compartment while an alkaline auxiliary salt solution is continuously taken from the cathode compartment. The at least not alkaline metal salt solution and the alkaline auxiliary salt solution are combined outside the electrolytic cell for the purpose of precipitating metal hydroxides or alkaline metal carbonates.
    Type: Application
    Filed: December 13, 2002
    Publication date: July 31, 2003
    Inventors: Armin Olbrich, Astrid Grge, Frank Schrumpf, Juliane Meese-Marktscheffel, Viktor Stoller, Gerhard Gille, Josef Schmoll, Michael Kruft, Dirk Naumann
  • Process for electrochemical decomposition of superalloys
    Publication number: 20030136685
    Abstract: A process for recovery of valuable metals from superalloys by electrochemical decomposition is described, both electrodes being formed by the superalloy and the polarity of the electrolysis current being reversed with a frequency of from 0.005 to 5 Hz.
    Type: Application
    Filed: November 12, 2002
    Publication date: July 24, 2003
    Inventors: Viktor Stoller, Armin Olbrich, Juliane Meese-Marktscheffel, Wolfgang Mathy, Michael Erb, Georg Nietfeld, Gerhard Gille
  • Process for isolating rhenium
    Publication number: 20030089202
    Abstract: A process for elution of rhenium adsorbed on strongly basic ion-exchange resins by means of highly concentrated aqueous hydrochloric acid solution is described, in which the ion-exchange resin is treated with aqueous solution containing an oxidizing agent.
    Type: Application
    Filed: November 6, 2002
    Publication date: May 15, 2003
    Inventors: Juliane Meese-Marktscheffel, Viktor Stoller, Armin Olbrich, Wolfgang Mathy, Michael Erb
  • Cobaltous oxide containing finely-dispersed metallic cobalt, methods of producing the same and use thereof
    Patent number: 6277305
    Abstract: The present invention relates to cobalt(II) oxide containing metallic cobalt, to a process for the production thereof and to the use thereof.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: August 21, 2001
    Assignee: H. C. Starck GmbH & Co. KG
    Inventors: Astrid Görge, Juliane Meese-Marktscheffel, Dirk Naumann, Armin Olbrich, Frank Schrumpf
  • Basic cobaltous carbonates, process for preparing the same and their use
    Patent number: 6183621
    Abstract: The present invention relates to processes for the production of cobalt(II) carbonates corresponding to the general formula Co[(OH)2]a[CO3]1−a, cobalt(II) carbonates and cobalt(II) oxalate carbonates obtainable by the process and the use thereof.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: February 6, 2001
    Assignee: H. C. Stack GmbH & Co. KG
    Inventors: Astrid Görge, Juliane Messe-Marktscheffel, Dirk Naumann, Armin Olbrich, Frank Schrumpf
  • Cobalt(II) oxide containing cobalt metal, a process for producing it and its use
    Patent number: 6096424
    Abstract: The present invention relates to cobalt(II) oxide containing metallic cobalt, to a process for producing it and to its use.
    Type: Grant
    Filed: December 12, 1998
    Date of Patent: August 1, 2000
    Assignee: H. C. Starck, GmbH & Co KG
    Inventors: Astrid Gorge, Katrin Plaga, Armin Olbrich
  • Cobalt metal agglomerates, process for producing the same and their use
    Patent number: 6019813
    Abstract: The present invention relates to cobalt metal agglomerates consisting of peanut-shaped primary particles with average particle sizes in the range from 0.5 to 2 .mu.m, to a process for the production thereof and to the use thereof.
    Type: Grant
    Filed: April 24, 1998
    Date of Patent: February 1, 2000
    Assignee: H.C. Starck GmbH & Co. KG
    Inventors: Astrid Gorge, Katrin Plaga, Armin Olbrich, Dirk Naumann, Wilfried Gutknecht, Josef Schmoll
  • Cobalt metal agglomerates, a method of producing them and their use
    Patent number: 6015447
    Abstract: The present invention relates to cobalt metal agglomerates consisting of peanut-shaped primary particles, to a process for the production thereof and to the use thereof.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: January 18, 2000
    Assignee: H.C. Starck GmbH & Co. KG
    Inventors: Astrid Gorge, Juliane Meese-Marktscheffel, Dirk Naumann, Armin Olbrich, Frank Schrumpf
  • Cobalt (II) oxide containing cobalt metal, a process for producing it and its use
    Patent number: 5972306
    Abstract: The present invention relates to cobalt(II) oxide containing metallic cobalt, to a process for producing it and to its use.
    Type: Grant
    Filed: July 9, 1997
    Date of Patent: October 26, 1999
    Assignee: H.C. Starck, GmbH & Co. KG
    Inventors: Astrid Gorge, Katrin Plaga, Armin Olbrich
  • Method for the decomposition and recovery of metallic constituents from superalloys
    Patent number: 5776329
    Abstract: The present invention relates to a method for the decomposition of superalloys and subsequent recovery of the metallic constituents.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: July 7, 1998
    Assignees: H.C. Starck GmbH & Co, KG, Bayer AG
    Inventors: Ulrich Krynitz, Armin Olbrich, Wolfgang Kummer, Martin Schloh
  • Cobalt/cobalt oxide powder
    Patent number: 5718844
    Abstract: Cobalt/cobalt oxide powder having the composition Co.sub.x (CoO).sub.1-x, where x is from 0.02 to 5, and a process for its production and use in nickel hydroxide electrodes for secondary batteries to enhance capacity.
    Type: Grant
    Filed: September 18, 1995
    Date of Patent: February 17, 1998
    Assignee: H.C. Starck GmbH & Co., KG
    Inventors: Ulrich Krynitz, Dirk Naumann, Bernd Mende, Armin Olbrich, Gerhard Gille
  • Process for the production of pure nickel hydroxide and its use
    Patent number: 5391265
    Abstract: The invention relates to a process for the production of pure nickel hydroxide by anodic oxidation of metallic nickel in aqueous electrolyte solution in the presence of sulfate ions and removal of the nickel hydroxide formed and to the use of the nickel hydroxide thus produced.
    Type: Grant
    Filed: November 16, 1993
    Date of Patent: February 21, 1995
    Assignee: H. C. Starck GmbH & Co. KG
    Inventors: Ulrich Krynitz, Dirk Naumann, Armin Olbrich