Patents by Inventor Hiwa Salimi

Hiwa Salimi 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).

  • Publication number: 20240150867
    Abstract: Methods for leaching and extraction of precious metals.
    Type: Application
    Filed: August 9, 2021
    Publication date: May 9, 2024
    Inventors: Hiwa SALIMI, Loghman MORADl
  • Patent number: 11814698
    Abstract: The present application relates to methods for the simultaneous leaching and extraction of precious metals. For example, the present application relates to methods of leaching and extracting gold and/or palladium from a substance comprising gold and/or palladium such as a gold and/or palladium-containing ore in one step using a compound of Formula I: (I).
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: November 14, 2023
    Assignee: EXCIR WORKS CORP.
    Inventors: Stephen Foley, Hiwa Salimi, Loghman Moradi
  • Publication number: 20230323505
    Abstract: Solutions and methods for leaching coinage metals. For example, Solutions and methods for leaching copper and/or silver from a substance comprising copper and/or silver (such as a coinage metal-concentrate, or electronic waste) using a water-miscible stabilizer in combination with leaching reagents to form leach solutions.
    Type: Application
    Filed: October 4, 2021
    Publication date: October 12, 2023
    Inventors: Loghman MORADI, Hiwa SALIMI, Shawna Lynn NESDOLY, Jenna Kathleen BRATVOLD
  • Publication number: 20220364201
    Abstract: The present application relates to methods for leaching and extraction of precious metals. For example, the present application relates to methods of leaching gold, palladium and/or platinum from a substance comprising gold, palladium and/or platinum (such as a gold-containing ore or a platinum group metal (PGM) concentrate) using an organic solvent that is water-miscible or partially water-miscible.
    Type: Application
    Filed: June 30, 2022
    Publication date: November 17, 2022
    Inventors: Stephen FOLEY, Hiwa SALIMI, Loghman MORADI
  • Publication number: 20220340998
    Abstract: The present application relates to methods for the simultaneous leaching and extraction of precious metals.
    Type: Application
    Filed: June 30, 2022
    Publication date: October 27, 2022
    Inventors: Stephen FOLEY, Hiwa SALIMI, Loghman MORADI
  • Patent number: 11427886
    Abstract: The present application relates to methods for the simultaneous leaching and extraction of precious metals. For example, the present application relates to methods of leaching and extracting gold and/or palladium from a substance comprising gold and/or palladium such as a gold- and/or palladium-containing ore in one step using a compound of Formula I:(I).
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: August 30, 2022
    Assignee: EXCIR WORKS CORP.
    Inventors: Stephen Foley, Hiwa Salimi, Loghman Moradi
  • Patent number: 11408053
    Abstract: The present application relates to methods for leaching and extraction of precious metals. For example, the present application relates to methods of leaching gold, palladium and/or platinum from a substance comprising gold, palladium and/or platinum (such as a gold-containing ore or a platinum group metal (PGM) concentrate) using an organic solvent that is water-miscible or partially water-miscible.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: August 9, 2022
    Assignee: EXCIR WORKS CORP.
    Inventors: Stephen Foley, Hiwa Salimi, Loghman Moradi
  • Publication number: 20180142322
    Abstract: The present applications relates to methods for the simultaneous leaching and extraction of precious metals. For example, the present application relates to methods of leaching and extracting gold and/or palladium from a substance comprising gold and/or palladium such as a gold- and/or palladium-containing ore in one step using a compound of Formula I:(I).
    Type: Application
    Filed: April 21, 2016
    Publication date: May 24, 2018
    Applicant: University of Saskatchewan
    Inventors: Stephen FOLEY, Hiwa SALIMI, Loghman MORADI
  • Publication number: 20180112289
    Abstract: The present application relates to methods for leaching and extraction of precious metals. For example, the present application relates to methods of leaching gold, palladium and/or platinum from a substance comprising gold, palladium and/or platinum (such as a gold-containing ore or a platinum group metal (PGM) concentrate) using an organic solvent that is water-miscible or partially water-miscible.
    Type: Application
    Filed: April 21, 2016
    Publication date: April 26, 2018
    Applicant: UNIVERSITY OF SASKATCHEWAN
    Inventors: Stephen FOLEY, Hiwa SALIMI, Loghman MORADI
  • Patent number: 8663584
    Abstract: An extraction component enabling the concurrent recovery of gold and/or palladium selectively from a hydrochloric acid media containing the base metals and other contaminants. The disclosed extractant disclosed eliminates the conventional multi-step process for such extraction by providing for an extraction method which uses a single solvent extraction reagent. Further enhancing the conventional multi step process, the conventional scrubbing stage is eliminated by a single stripping stage. The resulting solutions can be obtained from leaching many types of material such as copper anode slimes, the treatment of scrap such as electronic circuit boards and plating effluents, PGM, or refractory gold ores.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: March 4, 2014
    Inventors: Loghman Moradi, Hiwa Salimi, Mohammad Piltan, Issa Yavari
  • Publication number: 20120228151
    Abstract: An extraction component enabling the concurrent recovery of gold and/or palladium selectively from a hydrochloric acid media containing the base metals and other contaminants. The disclosed extractant disclosed eliminates the conventional multi-step process for such extraction by providing for an extraction method which uses a single solvent extraction reagent. Further enhancing the conventional multi step process, the conventional scrubbing stage is eliminated by a single stripping stage. The resulting solutions can be obtained from leaching many types of material such as copper anode slimes, the treatment of scrap such as electronic circuit boards and plating effluents, PGM, or refractory gold ores.
    Type: Application
    Filed: March 7, 2011
    Publication date: September 13, 2012
    Inventors: Loghman Moradi, Hiwa Salimi, Mohammad Piltan, Issa Yavari