Patents by Inventor John William FREIDERICH

John William FREIDERICH 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).

  • Rare earth amide compositions
    Patent number: 11186893
    Abstract: A method for extracting a rare earth element from a rare earth-containing substance, the method comprising mixing the rare earth-containing substance with a protic ionic liquid, such as: wherein R1 is selected from hydrogen atom and hydrocarbon groups containing 1 to 6 carbon atoms; R2 and R3 are independently selected from hydrocarbon groups containing 1 to 12 carbon atoms; and X? is an anionic species; to produce a composition of the formula (RE)(amide)yXz at least partially dissolved in the protic ionic liquid, wherein RE is at least one rare earth element having an atomic number selected from 39, 57-71, and 90-103; y is 2-6; z is a number that charge balances the total positive charge of RE; and the amide is the conjugate base of the cationic portion of the protic ionic liquid of Formula (1) and has the following formula:
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: November 30, 2021
    Assignee: UT-Battelle, LLC
    Inventors: John William Freiderich, Huimin Luo, Bruce A. Moyer, Sheng Dai
  • METHODS FOR LIQUID EXTRACTION OF RARE EARTH METALS USING IONIC LIQUIDS
    Publication number: 20200370144
    Abstract: A method for extracting a rare earth element from a rare earth-containing substance, the method comprising mixing the rare earth-containing substance with a protic ionic liquid, such as: wherein R1 is selected from hydrogen atom and hydrocarbon groups containing 1 to 6 carbon atoms; R2 and R3 are independently selected from hydrocarbon groups containing 1 to 12 carbon atoms; and X? is an anionic species; to produce a composition of the formula (RE)(amide)yXz at least partially dissolved in the protic ionic liquid, wherein RE is at least one rare earth element having an atomic number selected from 39, 57-71, and 90-103; y is 2-6; z is a number that charge balances the total positive charge of RE; and the amide is the conjugate base of the cationic portion of the protic ionic liquid of Formula (1) and has the following formula:
    Type: Application
    Filed: May 22, 2020
    Publication date: November 26, 2020
    Applicant: UT-Battelle, LLC
    Inventors: John William FREIDERICH, Huimin LUO, Bruce A. MOYER, Sheng DAI
  • Methods for liquid extraction of rare earth metals using ionic liquids
    Patent number: 10689727
    Abstract: A method for extracting a rare earth element from a rare earth-containing substance, the method comprising mixing the rare earth-containing substance with a protic ionic liquid, such as: wherein R1 is selected from hydrogen atom and hydrocarbon groups containing 1 to 6 carbon atoms; R2 and R3 are independently selected from hydrocarbon groups containing 1 to 12 carbon atoms; and X? is an anionic species; to produce a composition of the formula (RE)(amide)yXz at least partially dissolved in the protic ionic liquid, wherein RE is at least one rare earth element having an atomic number selected from 39, 57-71, and 90-103; y is 2-6; z is a number that charge balances the total positive charge of RE; and the amide is the conjugate base of the cationic portion of the protic ionic liquid of Formula (1) and has the following formula:
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: June 23, 2020
    Assignee: UT-Battelle, LLC
    Inventors: John William Freiderich, Huimin Luo, Bruce A. Moyer, Sheng Dai
  • METHODS FOR LIQUID EXTRACTION OF RARE EARTH METALS USING IONIC LIQUIDS
    Publication number: 20170306439
    Abstract: A method for extracting a rare earth element from a rare earth-containing substance, the method comprising mixing the rare earth-containing substance with a protic ionic liquid, such as: wherein R1 is selected from hydrogen atom and hydrocarbon groups containing 1 to 6 carbon atoms; R2 and R3 are independently selected from hydrocarbon groups containing 1 to 12 carbon atoms; and X? is an anionic species; to produce a composition of the formula (RE)(amide)yXz at least partially dissolved in the protic ionic liquid, wherein RE is at least one rare earth element having an atomic number selected from 39, 57-71, and 90-103; y is 2-6; z is a number that charge balances the total positive charge of RE; and the amide is the conjugate base of the cationic portion of the protic ionic liquid of Formula (1) and has the following formula:
    Type: Application
    Filed: April 22, 2016
    Publication date: October 26, 2017
    Inventors: John William FREIDERICH, Huimin LUO, Bruce A. MOYER, Sheng DAI