Patents by Inventor Theodore F. Munday

Theodore F. Munday 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: 5989509
    Abstract: A process for purifying elemental phosphorus that contains antimony using an oxidizer, such as hydrogen peroxide, peroxymonosulfate, peroxydisulfate, or a hypochlorite, in a two phase system containing water and phosphorus as the two liquids. A purified elemental phosphorus having 200 ppb or less antimony content.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: November 23, 1999
    Assignee: EMC Corporation
    Inventors: Louis T. Gunkel, John Crosby, Theodore F. Munday, Paul J. Beck
  • Patent number: 5368741
    Abstract: Aqueous phosphorus wastes from the electric furnace production of phosphors and containing heavy metal bearing particulates are treated with lime whereby the phosphorus is converted into useful phosphorus compounds and the heavy metals rendered sufficiently non-leachable to permit their release into the environment. The treatment is conducted above about C. at a pH of between about 11.0 to 12.5.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: November 29, 1994
    Assignee: FMC Corporation
    Inventors: Theodore F. Munday, Jay R. Brummer, Paul J. Beck
  • Patent number: 5002745
    Abstract: A process is described for the separation and recovery of phosphorus from phosphorus-dirt mixtures by adding a quaternary ammonium compound to the mixture, while it is under an aqueous cover, agitating same, and separating a lower phosphorus phase from an upper dirt phase. The mixtures are treated prior to addition of the quaternary ammonium compound, where required, by lowering their dirt to phosphorus levels sufficiently low to permit them to be destabilized.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: March 26, 1991
    Assignee: FMC Corporation
    Inventors: Alan S. Michaels, Wayne H. Lee, Theodore F. Munday
  • Patent number: 4990179
    Abstract: The excessive wear and formation of ring-like cavities in carbon crucibles used to contain iron-based compositions that are heated in a plasma furnace to a temperature of from about C. to aboout C. are reduced or eliminated by adding carbon particles to the crucible in amounts of at least about 6 weight percent of the melt, and preferably in amounts exceeding the solubility of carbon in the heated melt.
    Type: Grant
    Filed: April 23, 1990
    Date of Patent: February 5, 1991
    Assignee: FMC Corporation
    Inventors: Theodore F. Munday, Richard A. Mohr
  • Patent number: 4806325
    Abstract: Ferrophos is treated in a plasma furnace by maintaining an electric arc between a cathode and at least one point on the surface of the ferrophos which serves as the anode in the presence of an inert plasma gas, maintaining the average temperature of the ferrophos at about 2, C. to about 2, C., evolving gaseous phosphorus from the ferrophos until it contains less than about 7% by weight phosphorus, removing a purified phosphorus gas as one product and a metal concentrate having a reduced phosphorus content as a coproduct.
    Type: Grant
    Filed: July 14, 1988
    Date of Patent: February 21, 1989
    Assignee: FMC Corporation
    Inventors: Theodore F. Munday, Richard A. Mohr
  • Patent number: 4289739
    Abstract: In the production of SALP tetrahydrate wherein sodium carbonate and aluminum hydroxide are added to aqueous phosphoric acid, the viscous reactive mixture is agitated with water to free the SALP tetrahydrate crystals from the gelatinous matrix. The crystals are recovered by filtration or centrifugation.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: September 15, 1981
    Assignee: FMC Corporation
    Inventors: John S. Chiang, Theodore F. Munday, Joseph M. Ilardi
  • Patent number: 4185079
    Abstract: A method for removing small concentrations of phosphine contained in a carbon monoxide gas mixture by preferentially oxidizing the phosphine, in which the phosphine is oxidized with air at a temperature of from C. to C. to form phosphorus pentoxide, which is recovered from the gas mixture preferably as phosphoric acid.
    Type: Grant
    Filed: June 8, 1978
    Date of Patent: January 22, 1980
    Assignee: FMC Corporation
    Inventors: Theodore F. Munday, David Goldstein, John Walden
  • Patent number: 4175111
    Abstract: Off gases from electric furnace production of phosphorus, consisting essentially of carbon monoxide and phosphine, are heated to C. to decompose the phosphine to red phosphorus and hydrogen; the red phosphorus is separated from the gas--most desirably by passing the gas through aqueous hydrogen peroxide which oxidizes the phosphorus to phosphoric acid,--to obtain a clean gas which can be used as a fuel.
    Type: Grant
    Filed: December 14, 1977
    Date of Patent: November 20, 1979
    Assignee: FMC Corporation
    Inventors: Theodore F. Munday, John Walden