Patents by Inventor Audrone M. Pavilcius

Audrone M. Pavilcius 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).

  • Single addition organic-inorganic blend emulsion breaking composition
    Patent number: 4179396
    Abstract: Single addition organic-inorganic blend emulsion breaking compositions suitable for breaking oil-in-water emulsions are prepared which consist essentially of an aqueous solution of a water soluble acidic aluminum salt and a water soluble quaternized dehydration condensation polymer of triethanolamine or acylated triethanolamine, or mixtures of triethanolamine and acylated triethanolamine, said polymer containing tertiary amino groups of which 20-100% are quaternized.
    Type: Grant
    Filed: February 23, 1978
    Date of Patent: December 18, 1979
    Assignee: Nalco Chemical Company
    Inventors: Robert K. Gabel, William H. Lindenberger, Audrone M. Pavilcius
  • Emulsion breaking
    Patent number: 4141854
    Abstract: A method of resolving water-in-oil emulsions resulting from the organic solvent extraction of uranium from aqueous leach liquors which comprises treating said emulsions with at least 20 parts per million of a water-soluble acrylamide copolymer which contains from 5 - 50% by weight of a lower alkyl substituted tertiary aminoethyl methacrylate and quaternary ammonium salts thereof.
    Type: Grant
    Filed: December 14, 1977
    Date of Patent: February 27, 1979
    Assignee: Nalco Chemical Company
    Inventors: Audrone M. Pavilcius, Mary Ann Latko
  • Method for dewatering coke tar-water mixtures
    Patent number: 4139451
    Abstract: A method for dewatering tar-water mixtures obtained from the coking of coal is disclosed. The method involves adding to the tar from 150 to 3,000 ppm of a di-tri butyl ethoxylated phenol compound dissolved in water, heating the tar-water mixture, and then agitating it to allow contact with the chemical additive. This is followed by allowing the mixture to settle forming an aqueous upper phase and a lower dewatering tar phase.
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: February 13, 1979
    Assignee: Nalco Chemical Company
    Inventors: Audrone M. Pavilcius, William H. Lindenberger