Patents by Inventor Kittima Khumsa-Ang

Kittima Khumsa-Ang 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).

  • Preparation of magnetite from ferrous chloride subsequent to replacing sulphate ions with chloride ions
    Patent number: 10513443
    Abstract: A method of preparing magnetite particles may include providing a first solution of substantially ferrous sulphate. The first solution may be converted by replacing sulphate ions with chloride ions to produce a second solution of substantially ferrous chloride. The second solution may be oxidized to produce a third solution of substantially iron oxide. A system for purifying a solution of substantially iron oxide may include a solution reservoir, at least one membrane unit, and at least one pump for circulating the solution between the solution reservoir and the membrane unit. The solution may be delivered from the solution reservoir to an inlet of the membrane unit, and/or the solution may be returned from an outlet of the membrane unit to the solution reservoir.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: December 24, 2019
    Assignee: ATOMIC ENERGY OF CANADA LIMITED/ ÉNERGIE ATOMIQUE DU CANADA LIMITÉE
    Inventors: Kittima Khumsa-Ang, Carl W. Turner, Jing Qian
  • PREPARATION OF MAGNETITE FROM FERROUS CHLORIDE SUBSEQUENT TO SULPHATE REMOVAL BY ION-EXCHANGE
    Publication number: 20180327276
    Abstract: A method of preparing magnetite particles may include providing a first solution of substantially ferrous sulphate. The first solution may be converted by replacing sulphate ions with chloride ions to produce a second solution of substantially ferrous chloride. The second solution may be oxidized to produce a third solution of substantially iron oxide. A system for purifying a solution of substantially iron oxide may include a solution reservoir, at least one membrane unit, and at least one pump for circulating the solution between the solution reservoir and the membrane unit. The solution may be delivered from the solution reservoir to an inlet of the membrane unit, and/or the solution may be returned from an outlet of the membrane unit to the solution reservoir.
    Type: Application
    Filed: November 17, 2016
    Publication date: November 15, 2018
    Applicant: Atomic Énergy of Canada Limited/ Energie Atomique Du Canada Limitée
    Inventors: Kittima Khumsa-Ang, Carl W. Turner, Jing Qian