Patents by Inventor Agnieszka Wojtalewicz-Kasprzak

Agnieszka Wojtalewicz-Kasprzak 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).

  • Method for recovery of rare earths from fluorescent lamps
    Patent number: 8628734
    Abstract: Method of recovery of rare earths from fluorescent lamps. The method comprises six steps. The individual process steps are: Mechanical separation of coarse components. Separation of the halophosphate. Extraction in acids of easily soluble rare-earth fluorescent substances (mainly Y, Eu-oxide) Extraction in acids of rare earth fluorescent substances which dissolve with difficulty (for example rare-earth phosphates) Breakdown of the remaining components which contain rare earths (for example rare-earth-aluminates) Final treatment.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: January 14, 2014
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventors: Robert Otto, Agnieszka Wojtalewicz-Kasprzak
  • METHOD FOR RECOVERY OF RARE EARTHS FROM FLUORESCENT LAMPS
    Publication number: 20120027651
    Abstract: Method of recovery of rare earths from fluorescent lamps. The method comprises six steps. The individual process steps are: Mechanical separation of coarse components. Separation of the halophosphate. Extraction in acids of easily soluble rare-earth fluorescent substances (mainly Y, Eu-oxide) Extraction in acids of rare earth fluorescent substances which dissolve with difficulty (for example rare-earth phosphates) Breakdown of the remaining components which contain rare earths (for example rare-earth-aluminates) Final treatment.
    Type: Application
    Filed: July 11, 2011
    Publication date: February 2, 2012
    Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
    Inventors: Robert Otto, Agnieszka Wojtalewicz-Kasprzak
  • Method for recovery of rare earths from fluorescent lamps
    Patent number: 7976798
    Abstract: Method for recovery of rare earths from fluorescent lamps. The method comprises six steps. •The individual process steps are: Mechanical separation of coarse components. •Separation of the halophosphate. •Extraction in acids of easily soluble rare-earth fluorescent substances (mainly Y, Eu-oxide) •Extraction in acids of rare-earth fluorescent substances which dissolve with difficulty (for example rare-earth phosphates) •Breakdown of the remaining components which contain rare earths (for example rare-earth-aluminates) •Final treatment.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: July 12, 2011
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventors: Robert Otto, Agnieszka Wojtalewicz-Kasprzak
  • Method for Recovery of Rare Earths from Fluorescent Lamps
    Publication number: 20090162267
    Abstract: Method for recovery of rare earths from fluorescent lamps. The method comprises six steps. The individual process steps are: Mechanical separation of coarse components. Separation of the halophosphate. Extraction in acids of easily soluble rare-earth fluorescent substances (mainly Y, Eu-oxide) Extraction in acids of rare-earth fluorescent substances which dissolve with difficulty (for example rare-earth phosphates) Breakdown of the remaining components which contain rare earths (for example rare-earth-aluminates) Final treatment.
    Type: Application
    Filed: May 31, 2007
    Publication date: June 25, 2009
    Applicant: OSRAM Gesellschaft mit beschrankter Haftung
    Inventors: Robert Otto, Agnieszka Wojtalewicz-Kasprzak