Patents by Inventor Ronald S. Herbst

Ronald S. Herbst 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).

  • Methods of removing a constituent from a feed stream using adsorption media
    Patent number: 7947861
    Abstract: A method of producing an adsorption medium to remove at least one constituent from a feed stream. The method comprises dissolving and/or suspending at least one metal compound in a solvent to form a metal solution, dissolving polyacrylonitrile into the metal solution to form a PAN-metal solution, and depositing the PAN-metal solution into a quenching bath to produce the adsorption medium. The at least one constituent, such as arsenic, selenium, or antimony, is removed from the feed stream by passing the feed stream through the adsorption medium. An adsorption medium having an increased metal loading and increased capacity for arresting the at least one constituent to be removed is also disclosed. The adsorption medium includes a polyacrylonitrile matrix and at least one metal hydroxide incorporated into the polyacrylonitrile matrix.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: May 24, 2011
    Assignee: Battelle Energy Alliance, LLC
    Inventors: Troy J. Tranter, Nicholas R. Mann, Terry A. Todd, Ronald S. Herbst
  • High capacity adsorption media and method of producing
    Patent number: 7807606
    Abstract: A method of producing an adsorption medium to remove at least one constituent from a feed stream. The method comprises dissolving and/or suspending at least one metal compound in a solvent to form a metal solution, dissolving polyacrylonitrile into the metal solution to form a PAN-metal solution, and depositing the PAN-metal solution into a quenching bath to produce the adsorption medium. The at least one constituent, such as arsenic, selenium, or antimony, is removed from the feed stream by passing the feed stream through the adsorption medium. An adsorption medium having an increased metal loading and increased capacity for arresting the at least one constituent to be removed is also disclosed. The adsorption medium includes a polyacrylonitrile matrix and at least one metal hydroxide incorporated into the polyacrylonitrile matrix.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: October 5, 2010
    Assignee: Battelle Energy Alliance, LLC
    Inventors: Troy J. Tranter, Nicholas R. Mann, Terry A. Todd, Ronald S. Herbst
  • Extraction processes and solvents for recovery of cesium, strontium, rare earth elements, technetium and actinides from liquid radioactive waste
    Patent number: 6270737
    Abstract: Cesium and strontium are extracted from aqueous acidic radioactive waste containing rare earth elements, technetium and actinides, by contacting the waste with a composition of a complex organoboron compound and polyethylene glycol in an organofluorine diluent mixture. In a preferred embodiment the complex organoboron compound is chlorinated cobalt dicarbollide, the polyethylene glycol has the formula RC6H4(OCH2CH2)nOH, and the organofluorine diluent is a mixture of bis-tetrafluoropropyl ether of diethylene glycol with at least one of bis-tetrafluoropropyl ether of ethylene glycol and bis-tetrafluoropropyl formal. The rare earths, technetium and the actinides (especially uranium, plutonium and americium), are extracted from the aqueous phase using a phosphine oxide in a hydrocarbon diluent, and reextracted from the resulting organic phase into an aqueous phase by using a suitable strip reagent.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: August 7, 2001
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Boris N. Zaitsev, Vyacheslav M. Esimantovskiy, Leonard N. Lazarev, Evgeniy G. Dzekun, Valeriy N. Romanovskiy, Terry A. Todd, Ken N. Brewer, Ronald S. Herbst, Jack D. Law
  • Separation of the isotopes of boron by chemical exchange reactions
    Patent number: 5419887
    Abstract: The isotopes of boron, .sup.10 B and .sup.11 B, are separated by means of a gas-liquid chemical exchange reaction involving the isotopic equilibrium between gaseous BF.sub.3 and a liquid BF.sub.3 . donor molecular addition complex formed between BF.sub.3 gas and a donor chosen from the group consisting of: nitromethane, acetone, methyl isobutyl ketone, or diisobutyl ketone.
    Type: Grant
    Filed: January 25, 1994
    Date of Patent: May 30, 1995
    Assignee: Research & Development Institute, Inc.
    Inventors: Frank P. McCandless, Ronald S. Herbst