Patents by Inventor Detlef Kuboth

Detlef Kuboth 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).

  • Use of Copolymers for Reducing Precipitates and Deposits from Inorganic and Organic Impurities in the Bayer Process for the Extraction of Aluminium Hydroxide
    Publication number: 20090008335
    Abstract: Use of water-soluble copolymers, said copolymers composed of monoethylenically unsaturated, acid group-bearing monomers a) and at least one hydrophobic component b) which contains unsaturated double bonds in Bayer process caustic solutions as agents for reducing precipitation and formation of scales by inorganic and organic impurities.
    Type: Application
    Filed: February 28, 2005
    Publication date: January 8, 2009
    Applicant: ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC
    Inventors: Christian FLOCKEN, Detlef KUBOTH, Rainer POESCHMANN
  • Removal of non-water soluble substances from solutions of aqueous metal extracts
    Patent number: 7264736
    Abstract: The invention relates to methods and a device for the removal of non-water soluble substances from solutions of aqueous metal extracts, by addition of at least one water-soluble cationic polyelectrolyte, containing a diallylaminoalkyl(meth)acrylamide, neutralized or quaternised with mineral acid and subsequently polymerized, preferably dimethylaminopropylacrylamide.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: September 4, 2007
    Assignee: Ashland Licensing and Intellectual Property LLC
    Inventor: Detlef Kuboth
  • Removal of non-water soluble substances from solutions of aqueous metal extracts
    Publication number: 20070003462
    Abstract: The invention relates to methods and a device for the removal of non-water soluble substances from solutions of aqueous metal extracts, by addition of at least one water-soluble cationic polyelectrolyte, containing a diallylaminoalkyl(meth)acrylamide, neutralized or quaternised with mineral acid and subsequently polymerized, preferably dimethylaminopropylacrylamide.
    Type: Application
    Filed: July 31, 2006
    Publication date: January 4, 2007
    Applicant: Stockhausen GmbH & Co. KG
    Inventor: Detlef Kuboth
  • Removable of non-water soluble substances from solutions of aqueous metal extracts
    Publication number: 20040131521
    Abstract: The invention relates to methods and a device for the removal of non-water soluble substances from solutions of aqueous metal extracts, by addition of at least one water-soluble cationic polyelectrolyte, containing a diallylaminoalkyl(meth)acrylamide, neutralised or quaternised with mineral acid and subsequently polymerised, preferably dimethylaminopropylacrylamide.
    Type: Application
    Filed: October 20, 2003
    Publication date: July 8, 2004
    Inventor: Detlef Kuboth
  • Formation of crystals containing hydrated aluminum oxide from caustic mother liquors
    Publication number: 20040131539
    Abstract: The invention relates to a method for the production of aluminium oxide hydrate containing crystals, whereby a liquid aluminium oxide hydrate phase is brought into contact with an auxiliary agent phase containing an organic auxiliary agent having at least one of the following properties:
    Type: Application
    Filed: March 4, 2004
    Publication date: July 8, 2004
    Inventors: Detlef Kuboth, Norbert Ingenhoven, Andreas Peist