Patents Assigned to Hart Metals, Inc.
  • Desulfurizing reagent for hot metal
    Patent number: 4738715
    Abstract: The invention provides an injectable powdered reagent for the desulfurization of hot metal, such as iron external to the blast furnace. The reagent includes a slag-forming component comprising burnt lime, metallurgical fluorspar, and petroleum coke. Magnesium powder is combined with the slag-forming component to form a powdered reagent which is injected into the hot metal.
    Type: Grant
    Filed: January 2, 1987
    Date of Patent: April 19, 1988
    Assignee: Hart Metals, Inc.
    Inventor: Albert Muller