Patents by Inventor Theresa STARK

Theresa STARK 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 separating a defined mineral phase of value from a ground ore
    Patent number: 9718066
    Abstract: A defined mineral phase is separated from a ground ore having several chemical phases and being present in a heterogeneous particle size distribution by classifying the ore according to a defined particle diameter into at least two fractions, a first fraction having particles essentially larger than the defined particle diameter and a second fraction having particles essentially smaller than the defined particle diameter, and the defined mineral particles of value being present in both fractions, floating the first fraction having the greater particle diameters and selecting the defined mineral particles of value in a flotation concentrate, selectively admixing the defined mineral particles of value in the fraction having the smaller particle diameters with magnetizable particles, applying a magnetic separation process to the second fraction having smaller particle diameters, and separating a concentrate with an enrichment of the defined mineral phase of value.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: August 1, 2017
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Werner Hartmann, Theresa Stark, Sonja Wolfrum, Hermann Wotruba
  • METHOD FOR SEPARATING A DEFINED MINERAL PHASE OF VALUE FROM A GROUND ORE
    Publication number: 20160008822
    Abstract: A defined mineral phase is separated from a ground ore having several chemical phases and being present in a heterogeneous particle size distribution by classifying the ore according to a defined particle diameter into at least two fractions, a first fraction having particles essentially larger than the defined particle diameter and a second fraction having particles essentially smaller than the defined particle diameter, and the defined mineral particles of value being present in both fractions, floating the first fraction having the greater particle diameters and selecting the defined mineral particles of value in a flotation concentrate, selectively admixing the defined mineral particles of value in the fraction having the smaller particle diameters with magnetizable particles, applying a magnetic separation process to the second fraction having smaller particle diameters, and separating a concentrate with an enrichment of the defined mineral phase of value.
    Type: Application
    Filed: December 15, 2014
    Publication date: January 14, 2016
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Werner HARTMANN, Theresa STARK, Sonja WOLFRUM, Hermann WOTRUBA