Patents by Inventor Edouard ASSELIN

Edouard ASSELIN 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 for Leaching Metal Sulfides with Reagents Having Thiocarbonyl Functional Groups
    Publication number: 20200181731
    Abstract: This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.
    Type: Application
    Filed: January 15, 2020
    Publication date: June 11, 2020
    Inventors: David DIXON, Oscar OLVERA OLMEDO, Edouard ASSELIN, Ahmad GHAHREMAN, Zihe REN
  • Process for Leaching Metal Sulfides with Reagents Having Thiocarbonyl Functional Groups
    Publication number: 20200181734
    Abstract: This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.
    Type: Application
    Filed: January 15, 2020
    Publication date: June 11, 2020
    Inventors: David DIXON, Oscar OLVERA OLMEDO, Edouard ASSELIN, Ahmad GHAHREMAN, Zihe REN
  • Process for Leaching Metal Sulfides with Reagents Having Thiocarbonyl Functional Groups
    Publication number: 20200181732
    Abstract: This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.
    Type: Application
    Filed: January 15, 2020
    Publication date: June 11, 2020
    Inventors: David DIXON, Oscar OLVERA OLMEDO, Edouard ASSELIN, Ahmad GHAHREMAN, Zihe REN
  • Process for Leaching Metal Sulfides with Reagents Having Thiocarbonyl Functional Groups
    Publication number: 20200181737
    Abstract: This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.
    Type: Application
    Filed: January 21, 2020
    Publication date: June 11, 2020
    Inventors: David DIXON, Oscar OLVERA OLMEDO, Edouard ASSELIN, Ahmad GHAHREMAN, Zihe REN
  • Process for Leaching Metal Sulfides with Reagents Having Thiocarbonyl Functional Groups
    Publication number: 20200181735
    Abstract: This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.
    Type: Application
    Filed: January 16, 2020
    Publication date: June 11, 2020
    Inventors: David DIXON, Oscar OLVERA OLMEDO, Edouard ASSELIN, Ahmad GHAHREMAN, Zihe REN
  • Process for Leaching Metal Sulfides with Reagents Having Thiocarbonyl Functional Groups
    Publication number: 20200149132
    Abstract: This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.
    Type: Application
    Filed: January 15, 2020
    Publication date: May 14, 2020
    Inventors: David DIXON, Oscar OLVERA OLMEDO, Edouard ASSELIN, Ahmad GHAHREMAN, Zihe REN
  • Process for Leaching Metal Sulfides with Reagents Having Thiocarbonyl Functional Groups
    Publication number: 20200149131
    Abstract: This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.
    Type: Application
    Filed: January 15, 2020
    Publication date: May 14, 2020
    Inventors: David DIXON, Oscar OLVERA OLMEDO, Edouard ASSELIN, Ahmad GHAHREMAN, Zihe REN
  • PROCESS FOR LEACHING METAL SULFIDES WITH REAGENTS HAVING THIOCARBONYL FUNCTIONAL GROUPS
    Publication number: 20200048736
    Abstract: This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.
    Type: Application
    Filed: October 19, 2017
    Publication date: February 13, 2020
    Inventors: David DIXON, Edouard ASSELIN, Zihe REN, Nelson MORA HUERTAS