Patents Assigned to The Carbide/Graphite Group, Inc.
  • Powdered desulfurizing reagent and process of use
    Patent number: 5284504
    Abstract: A reagent for desulfurizing molten iron comprising calcium carbide and/or lime and an asphaltite. The reagent may contain, in addition, magnesium which is either uniformly distributed within the reagent mixture, or stored separately and added to the mixture during fluidized transport of the reagent just prior to injection to vary the addition of magnesium for any given injection.
    Type: Grant
    Filed: October 26, 1992
    Date of Patent: February 8, 1994
    Assignee: The Carbide/Graphite Group, Inc.
    Inventors: Bruce J. Barker, Brian M. Kinsman, Ian A. Cameron