Patents Assigned to Stannum Group LLC
  • Process for refining lead bullion
    Patent number: 8500845
    Abstract: A unique pyrometallurgical lead refining process includes adding a Lewis acid component and an Arrhenius base compound to a molten lead bullion. The Lewis acid component and Arrhenius base compound are added in stoichiometric amounts that preferentially remove lighter amphoteric elements from the molten lead bullion, and promote reactions with amphoteric p-block elements in the lead bullion to form over the lead a slag of Lewis bases, thereby forming a slag layer incorporating the metal salts of the amphoteric p-block elements.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: August 6, 2013
    Assignee: Stannum Group LLC
    Inventors: Miguel Pizzuto, Robert Seebeck, Jerry D. Schulz
  • Method for reclaiming lead
    Patent number: 8454722
    Abstract: A method for reducing tin in lead bullion has the steps of adding an Arrhenius base to a kettle containing lead bullion and tin, adding a byproduct of conventional detinning to the kettle, agitating contents of the kettle, and removing a layer of slag from the kettle. The disclosed method removes tin via chemical oxidation, adds lead via chemical reduction of an oxide from the byproduct of conventional detinning, and preserves most of the antimony content of the lead bullion.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: June 4, 2013
    Assignee: Stannum Group LLC
    Inventors: Jerry D. Schulz, Robert E. Seebeck, Lawrence G. Eagan
  • PROCESS FOR REFINING LEAD BULLION
    Publication number: 20120227544
    Abstract: A unique pyrometallurgical lead refining process includes adding a Lewis acid component and an Arrhenius base compound to a molten lead bullion. The Lewis acid component and Arrhenius base compound are added in stoichiometric amounts that preferentially remove lighter amphoteric elements from the molten lead bullion, and promote reactions with amphoteric p-block elements in the lead bullion to form over the lead a slag of Lewis bases, thereby forming a slag layer incorporating the metal salts of the amphoteric p-block elements.
    Type: Application
    Filed: May 23, 2012
    Publication date: September 13, 2012
    Applicant: Stannum Group LLC
    Inventors: Miguel Pizzuto, Robert Seebeck, Jerry D. Schulz
  • Process for refining lead bullion
    Patent number: 8211207
    Abstract: A unique pyrometallurgical lead refining process includes adding a Lewis acid component and an Arrhenius base compound to a molten lead bullion. The Lewis acid component and Arrhenius base compound are added in stoichiometric amounts that preferentially remove lighter amphoteric elements from the molten lead bullion, and promote reactions with amphoteric p-block elements in the lead bullion to form over the lead a slag of Lewis bases, thereby forming a slag layer incorporating the metal salts of the amphoteric p-block elements.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: July 3, 2012
    Assignee: Stannum Group LLC
    Inventors: Miguel Pizzuto, Robert Seebeck, Jerry D. Schulz
  • METHOD FOR RECLAIMING LEAD
    Publication number: 20120111151
    Abstract: A method for reducing tin in lead bullion has the steps of adding an Arrhenius base to a kettle containing lead bullion and tin, adding a byproduct of conventional detinning to the kettle, agitating contents of the kettle, and removing a layer of slag from the kettle. The disclosed method removes tin via chemical oxidation, adds lead via chemical reduction of an oxide from the byproduct of conventional detinning, and preserves most of the antimony content of the lead bullion.
    Type: Application
    Filed: January 20, 2012
    Publication date: May 10, 2012
    Applicant: STANNUM GROUP LLC
    Inventors: Jerry D. Schulz, Robert E. Seebeck, Lawrence G. Eagan
  • Method for reclaiming lead
    Patent number: 8105416
    Abstract: A method for reducing tin in lead bullion has the steps of adding an Arrhenius base to a kettle containing lead bullion and tin, adding a byproduct of conventional detinning to the kettle, agitating contents of the kettle, and removing a layer of slag from the kettle. The disclosed method removes tin via chemical oxidation, adds lead via chemical reduction of an oxide from the byproduct of conventional detinning, and preserves most of the antimony content of the lead bullion.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: January 31, 2012
    Assignee: Stannum Group LLC
    Inventors: Jerry D. Schulz, Robert E. Seebeck, Lawrence G. Eagan
  • PROCESS FOR REFINING LEAD BULLION
    Publication number: 20100229686
    Abstract: A unique pyrometallurgical lead refining process includes adding a Lewis acid component and an Arrhenius base compound to a molten lead bullion. The Lewis acid component and Arrhenius base compound are added in stoichiometric amounts that preferentially remove lighter amphoteric elements from the molten lead bullion, and promote reactions with amphoteric p-block elements in the lead bullion to form over the lead a slag of Lewis bases, thereby forming a slag layer incorporating the metal salts of the amphoteric p-block elements.
    Type: Application
    Filed: July 31, 2009
    Publication date: September 16, 2010
    Applicant: Stannum Group LLC
    Inventors: Miguel Pizzuto, Robert Seebeck, Jerry D. Schulz