Patents Assigned to Carbontech, LLC
  • Methods of recovering and purifying secondary aluminum
    Patent number: 8002872
    Abstract: The invention provides efficient and effective processes for recovering metals such as aluminum, magnesium and lithium from mixed waste sources such as auto shredder residue, aluminum cans, waste particles of aluminum alloy and municipal waste. The metal-waste source is dissolved in a more noble metal solvent at a temperature at which contaminants do not dissolve. The purified metal is then recovered from the solvent, preferably by electrorefining.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: August 23, 2011
    Assignee: Carbontech, LLC
    Inventor: Paul R. Kruesi
  • METHODS OF RECOVERING AND PURIFYING SECONDARY ALUMINUM
    Publication number: 20090084225
    Abstract: The invention provides efficient and effective processes for recovering metals such as aluminum, magnesium and lithium from mixed waste sources such as auto shredder residue, aluminum cans, waste particles of aluminum alloy and municipal waste. The metal-waste source is dissolved in a more noble metal solvent at a temperature at which contaminants do not dissolve. The purified metal is then recovered from the solvent, preferably by electrorefining.
    Type: Application
    Filed: November 22, 2006
    Publication date: April 2, 2009
    Applicant: CARBONTECH, LLC
    Inventor: Paul R. Kruesi