Patents by Inventor Peter Proplesch

Peter Proplesch 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 for recovering non-ferrous metals from hydro-thermal slime
    Patent number: 4081506
    Abstract: After separating brine from the slime and drying the same with solids therein, dried solids are subjected to roasting in an oxydizing temperature of 350.degree. to 400.degree. C, and then leaching the roasted material with predetermined acid and withdrawing sulfur oxides from waste gases generated during the roasting step.
    Type: Grant
    Filed: July 6, 1976
    Date of Patent: March 28, 1978
    Assignee: Kernforschungsanlage Julich Gesellschaft mit beschrankter Haftung
    Inventors: Peter Proplesch, Erich Zimmer