Patents by Inventor Lindsay E. Roy

Lindsay E. Roy 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).

  • Heavy metal separations using strongly paramagnetic column packings in a nonhomogeneous magnetic field
    Patent number: 10632400
    Abstract: The present invention is directed to a method for the separation of an actinide from another metal. The method comprises the following steps: (a) establishing a non-homogeneous magnetic field across a separation column containing a paramagnetic packing material and (b) providing a fluid containing the actinide and the another metal to the separation column wherein the fluid and the paramagnetic packing material are exposed to the non-homogeneous magnetic field. The non-homogeneous magnetic field is produced by a magnet having a first pole for magnetic interaction with a second pole of the magnet wherein the first pole has a different surface area than the second pole. The non-homogeneous magnetic field has a magnetic field gradient of about 500 lines/cm2/cm or more. In addition, the present invention is also directed to a method for the separation of one heavy metal from another heavy metal.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: April 28, 2020
    Assignee: Savannah River Nuclear Solutions, LLC
    Inventors: Tracy S. Rudisill, Fernando F. Fondeur, Lindsay E. Roy, William E. Daniel, Jr.
  • HEAVY METAL SEPARATIONS USING STRONGLY PARAMAGNETIC COLUMN PACKINGS IN A NONHOMOGENEOUS MAGNETIC FIELD
    Publication number: 20190176056
    Abstract: The present invention is directed to a method for the separation of an actinide from another metal. The method comprises the following steps: (a) establishing a non-homogeneous magnetic field across a separation column containing a paramagnetic packing material and (b) providing a fluid containing the actinide and the another metal to the separation column wherein the fluid and the paramagnetic packing material are exposed to the non-homogeneous magnetic field. The non-homogeneous magnetic field is produced by a magnet having a first pole for magnetic interaction with a second pole of the magnet wherein the first pole has a different surface area than the second pole. The non-homogeneous magnetic field has a magnetic field gradient of about 500 lines/cm2/cm or more. In addition, the present invention is also directed to a method for the separation of one heavy metal from another heavy metal.
    Type: Application
    Filed: December 11, 2017
    Publication date: June 13, 2019
    Inventors: Tracy S. Rudisill, Fernando F. Fondeur, Lindsay E. Roy, William E. Daniel, JR.