Patents by Inventor Erich Ottenschlager

Erich Ottenschlager 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).

  • Smelting process for recovering metals from fine-grained non-ferrous metal sulfide ores or concentrates
    Patent number: 4740240
    Abstract: In the smelting process of recovering metal from non-ferrous metal oxide ores or concentrates and/or from fine-grained non-ferrous metal sulfide ores or concentrates, particularly from non-ferrous heavy metal sulfide ores or concentrates, any sulfide ores are initially oxidized. The ores or concentrates are then supplied to a fluidized bed of coal in a melting gasifier (1). A certain particle size is maintained. Sulfide ores are supplied to a melting burner (2), which directs a flame jet into the fluidized bed of coal (FIG. 1).
    Type: Grant
    Filed: August 2, 1985
    Date of Patent: April 26, 1988
    Assignee: Voest-Alpine Aktiengesellschaft
    Inventors: Horst Sulzbacher, Werner Kepplinger, Erich Ottenschlager