Patents by Inventor Uwe-Jens Hansen

Uwe-Jens Hansen 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 granulating molten slag
    Patent number: 4909837
    Abstract: A process and apparatus for granulating slag in which molten slag is charged into a drum and is solidified and granulated therein on cooled surfaces. To ensure a rapid cooling at a high thruput rate, the molten slag is applied to the inside surface of a drum, which rotates on a horizontal axis and has a cooled shell, and the solidified film of slag is mechanically detached from the inside surface after about three-quarters of a revolution of the drum and is discharged.
    Type: Grant
    Filed: March 8, 1989
    Date of Patent: March 20, 1990
    Assignee: Norddeutsche Affinerie Aktiengesellschaft
    Inventors: Uwe-Jens Hansen, Werner Marnette
  • Method of treating sulfur-containing metallurgical materials
    Patent number: 4329170
    Abstract: In the processing of sulfur-containing metallurgical intermediates, sulfide ores or ore concentrates at a flame temperature of at least 1500.degree. C. in which sulfur dioxide and a melt are formed, acid sludge from the acid treatment of petroleum and mineral oils is substituted for at least a portion of the fuel. The acid sludge contains at most 85% by weight of inorganic components and is preferably introduced through a lance together with the combustion-sustaining gas and any additional fuel, usually in the form of oil.
    Type: Grant
    Filed: September 11, 1979
    Date of Patent: May 11, 1982
    Assignee: Norddeutsche Affinerie
    Inventors: Anton Schummer, Uwe-Jens Hansen, Michael Kopke