Patents by Inventor Mark I. Hoschke

Mark I. Hoschke 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).

  • Process and apparatus for absorption of zinc vapour in molten lead
    Patent number: 5215572
    Abstract: A process and apparatus for absorbing zinc vapour in a molten lead is characterized in that a gas containing zinc vapour is contacted with and then separated form a flowing stream of molten lead in a cyclone.
    Type: Grant
    Filed: January 23, 1992
    Date of Patent: June 1, 1993
    Assignee: Pasminco Australia Limited
    Inventor: Mark I. Hoschke
  • Zinc smelting process using oxidation zone and reduction zone
    Patent number: 4741770
    Abstract: A smelting process of superior energy efficiency, particularly suitable for the extraction of zinc, but also of lead and copper from raw materials comprising sulphide concentrates, and oxidized metalliferous materials, is carried out by establishing at least one oxidation zone and at least one reduction zone in a furnace, each zone comprising a slag bath and a gas space; the gas spaces of the oxidation and reduction zones being separated by a partition; feeding raw materials comprising metal sulphides, together with fluxes, to the or each oxidation zone, and feeding oxygen or oxygen-rich gas into the slag bath in the or each oxidation zone to oxidize metal compounds therein and produce an off-gas containing SO.sub.
    Type: Grant
    Filed: April 2, 1986
    Date of Patent: May 3, 1988
    Assignee: CRA Services Limited
    Inventors: Barry S. Andrews, James D. Iley, Mark I. Hoschke, Gregorey J. Hardie, Michael J. Hollitt