Patents by Inventor Anis LAKHOUAJA

Anis LAKHOUAJA 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).

  • Patent number: 12221343
    Abstract: Methods for removing heavy metals from a phosphoric acid solution produced in a wet process for manufacturing phosphoric acid, comprising treating the wet-process phosphoric acid solution with a small amount of a solid adsorbing material and a complex reagent to form a heavy metal complex-contaminated solid adsorbing material, and removing the contaminated solid adsorbing material to yield a treated phosphoric acid solution having a low heavy metal content.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: February 11, 2025
    Assignee: JESA TECHNOLOGIES LLC
    Inventors: Stephen Wayne Hilakos, Anis Lakhouaja
  • Publication number: 20230365409
    Abstract: Methods for removing heavy metals from a phosphoric acid solution produced in a wet process for manufacturing phosphoric acid, comprising treating the wet-process phosphoric acid solution with a small amount of a solid adsorbing material and a complex reagent to form a heavy metal complex-contaminated solid adsorbing material, and removing the contaminated solid adsorbing material to yield a treated phosphoric acid solution having a low heavy metal content.
    Type: Application
    Filed: February 24, 2022
    Publication date: November 16, 2023
    Inventors: Stephen Wayne HILAKOS, Anis LAKHOUAJA
  • Patent number: 11667528
    Abstract: Methods for removing cadmium (Cd) from a phosphoric acid solution produced in a wet process for manufacturing phosphoric acid, comprising treating the wet-process phosphoric acid solution with a small amount of a solid adsorbing material and a complex reagent to form a cadmium complex-contaminated solid adsorbing material, and removing the contaminated solid adsorbing material to yield a treated phosphoric acid solution having a low Cd content.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: June 6, 2023
    Assignee: JESA TECHNOLOGIES LLC
    Inventors: Stephen Wayne Hilakos, Anis Lakhouaja
  • Patent number: 11560310
    Abstract: Methods are disclosed for producing a calcium phosphate salt comprising reacting fluorosilicic acid (FSA) with water and a calcium phosphate source to produce phosphoric acid, calcium fluoride, and silicon dioxide; removing residual solids; performing a first stage precipitation wherein the phosphoric acid generated previously is reacted with a calcium source and water to remove residual fluoride; and performing a second stage precipitation wherein the phosphoric acid generated previously is reacted with a calcium source and water to isolate the product calcium phosphate salt, having a low level of impurities.
    Type: Grant
    Filed: February 11, 2022
    Date of Patent: January 24, 2023
    Assignee: JESA TECHNOLOGIES LLC
    Inventors: Stephen Wayne Hilakos, Anis Lakhouaja
  • Publication number: 20220332582
    Abstract: Methods for removing cadmium (Cd) from a phosphoric acid solution produced in a wet process for manufacturing phosphoric acid, comprising treating the wet-process phosphoric acid solution with a small amount of a solid adsorbing material and a complex reagent to form a cadmium complex-contaminated solid adsorbing material, and removing the contaminated solid adsorbing material to yield a treated phosphoric acid solution having a low Cd content.
    Type: Application
    Filed: August 20, 2020
    Publication date: October 20, 2022
    Inventors: Stephen Wayne HILAKOS, Anis LAKHOUAJA