Patents Assigned to Metal Recovery Industries (US) Inc.
  • Process for dezincing galvanized steel
    Patent number: 5779878
    Abstract: A process for removing zinc from galvanized steel. The galvanized steel is immersed in an electrolyte containing at least about 15% by weight of sodium or potassium hydroxide and having a temperature of at least about 75.degree. C. and the zinc is galvanically corroded from the surface of the galvanized steel. The material serving as the cathode is principally a material having a standard electrode potential which is intermediate of the standard electrode potentials of zinc and cadmium in the electrochemical series.
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: July 14, 1998
    Assignee: Metal Recovery Industries (US) Inc.
    Inventors: William A. Morgan, Frederick J. Dudek, Edward J. Daniels