Patents by Inventor David E. Busby

David E. Busby 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).

  • Purification of bisphenols by removing residual solvent
    Patent number: 4533764
    Abstract: Occluded organic solvent is removed from bisphenol crystals by placing in water maintained at a temperature sufficient to form a molten water-bisphenol phase, holding at that temperature for a time sufficient to transfer the organic solvent to the water phase, flash distilling the organic solvent, cooling molten water-bisphenol phase to produce crystallization and thereafter recovering the bisphenol.
    Type: Grant
    Filed: March 29, 1984
    Date of Patent: August 6, 1985
    Assignee: The Dow Chemical Company
    Inventors: Feng-Chih Chang, David E. Busby, Susan A. Wernl
  • Combustion of halogenated hydrocarbons
    Patent number: 4195596
    Abstract: Halogenated hydrocarbon materials are burned in an internally-fired horizontal fire-tube boiler and the heat of combustion directly produces saturated steam. Halogen values may be recovered from the combustion gases, e.g., by being absorbed in water. Thus halogenated hydrocarbon material which may need to be disposed of, is beneficially converted to energy and useful product.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: April 1, 1980
    Assignee: The Dow Chemical Company
    Inventors: John C. Scheifley, Clark R. Shields, David E. Busby
  • Combustion of halogenated hydrocarbons
    Patent number: 4125593
    Abstract: Halogenated hydrocarbon materials are burned in an internally-fired horizontal fire-tube boiler and the heat of combustion directly produces saturated steam. Halogen values may be recovered from the combustion gases, e.g., by being absorbed in water. Thus halogenated hydrocarbon material which may need to be disposed of, is beneficially converted to energy and useful product.
    Type: Grant
    Filed: August 2, 1976
    Date of Patent: November 14, 1978
    Assignee: The Dow Chemical Company
    Inventors: John C. Scheifley, Clark R. Shields, David E. Busby
  • Method of removing acetylene from anhydrous-hydrogen chloride
    Patent number: 4035473
    Abstract: Small amounts of acetylene in anhydrous hydrogen chloride can be reduced by heating the gas to a temperature within the range of about 300.degree. C to 500.degree. C in the presence of oxygen, said oxygen being in molar excess to that of the acetylene present. The process converts up to 99+% of the acetylene to vinyl chloride, carbon monoxide, other oxidation and chlorinated products with minimal production of chlorine which is an undesirable by-product.
    Type: Grant
    Filed: July 16, 1976
    Date of Patent: July 12, 1977
    Assignee: The Dow Chemical Company
    Inventors: German R. Urioste, David E. Busby, Garnet E. McConchie, Jimmy D. Orr