Patents by Inventor Heinz-Dieter Pantke

Heinz-Dieter Pantke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of direct reduction of iron ores
    Patent number: 3948646
    Abstract: The direct reduction of iron ore, e.g., in a shaft furnace, uses a pair of reducing-gas generating reformers which are alternately heated and functionally interchanged to produce the reducing gas. Downstream of each of the reformers is an air-preheating heat exchanger and between both reformers and the direct-reduction furnace there is provided a buffer heat exchanger. The combination reduces the fluctuations of the reducing-gas temperature at the inlet to the direct-reduction furnace and is able to maintain a reducing-gas temperature close to the desirable maximum for effective reduction.
    Type: Grant
    Filed: July 16, 1974
    Date of Patent: April 6, 1976
    Assignee: Thyssen Niederrhein AG Hutten- und Walzwerke
    Inventors: Heinz-Dieter Pantke, Ulrich Pohl