Patents by Inventor Cesare Giosue Ferron

Cesare Giosue Ferron 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).

  • Reduction of lime consumption when treating refractory gold ores or concentrates
    Patent number: 8029751
    Abstract: The present invention is directed to a precious metal recovery process in which basic ferric sulphates and/or jarosites are controlled by a number of mechanisms, including control of the oxidation reaction conditions in the first autoclave compartment, hot curing of the autoclave discharge slurry, and/or contacting of the autoclave feed slurry with the hot cured discharge liquid.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: October 4, 2011
    Assignee: Placer Dome Technical Services Limited
    Inventors: James A. King, Jinxing Ji, Christopher Andrew Fleming, Cesare Giosue Ferron
  • REDUCTION OF LIME CONSUMPTION WHEN TREATING REFRACTORY GOLD ORES OR CONCENTRATES
    Publication number: 20100024603
    Abstract: The present invention is directed to a precious metal recovery process in which basic ferric sulphates and/or jarosites are controlled by a number of mechanisms, including control of the oxidation reaction conditions in the first autoclave compartment, hot curing of the autoclave discharge slurry, and/or contacting of the autoclave feed slurry with the hot cured discharge liquid.
    Type: Application
    Filed: October 13, 2009
    Publication date: February 4, 2010
    Applicant: PLACER DOME TECHNICAL SERVICES LTD.
    Inventors: Jinxing Ji, James A. King, Christopher Andrew Fleming, Cesare Giosue Ferron
  • Reduction of lime consumption when treating refractor gold ores or concentrates
    Patent number: 7604783
    Abstract: The present invention is directed to a precious metal recovery process in which basic ferric sulphates and/or jarosites are controlled by a number of mechanisms, including control of the oxidation reaction conditions in the first autoclave compartment, hot curing of the autoclave discharge slurry, and/or contacting of the autoclave feed slurry with the hot cured discharge liquid.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: October 20, 2009
    Assignee: Placer Dome Technical Services Limited
    Inventors: James A. King, Jinxing Ji, Christopher Andrew Fleming, Cesare Giosue Ferron