Patents by Inventor Christopher Greet

Christopher Greet 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 a copper sulfide concentrate from an ore containing an iron sulfide
    Patent number: 9839917
    Abstract: In a method for recovering a copper sulfide concentrate by froth flotation from an ore containing an iron sulfide, wet grinding of the ore with grinding media made of high chromium cast iron alloy having a chromium content of from 10 to 35% by weight is combined with an addition of hydrogen peroxide to the conditioned mineral pulp before or during flotation in order to improve concentrate grade and recovery of copper sulfides.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: December 12, 2017
    Assignees: Evonik Degussa GmbH, Magotteaux International S.A.
    Inventors: Christopher Greet, Gerhard Arnold, Ingo Hamann, Alan Hitchiner
  • METHOD FOR RECOVERING A COPPER SULFIDE CONCENTRATE FROM AN ORE CONTAINING AN IRON SULFIDE
    Publication number: 20160144381
    Abstract: In a method for recovering a copper sulfide concentrate by froth flotation from an ore containing an iron sulfide, wet grinding of the ore with grinding media made of high chromium cast iron alloy having a chromium content of from 10 to 35% by weight is combined with an addition of hydrogen peroxide to the conditioned mineral pulp before or during flotation in order to improve concentrate grade and recovery of copper sulfides.
    Type: Application
    Filed: July 11, 2014
    Publication date: May 26, 2016
    Applicants: Evonik Degussa GmbH, Magotteaux International S.A.
    Inventors: Christopher Greet, Gerhard Arnold, Ingo Hamann, Alan Hitchiner