Patents Examined by Melvyn K. Andrews
  • Fluidized bed direct reduction plant
    Patent number: 5531424
    Abstract: A direct reduction plant for reducing raw iron ore fines in fluidized beds in a virtually closed gas system comprises an ore feed assembly, a preheat assembly, a multi-stage reactor assembly, a compacting/inerting assembly, and a reducing gas assembly, Reducing gases utilized in the plant are produced from externally provided natural gas and recycled reducing gases from said reactor assembly.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: July 2, 1996
    Assignee: Fior de Venezuela
    Inventor: Roy H. Whipp