Patents by Inventor Vincent van Brunt

Vincent van Brunt 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).

  • Process for recovering acetic acid from aqueous acetic acid solutions
    Patent number: 5175357
    Abstract: A process for recovering acetic acid from an aqueous acetic acid solution comprises contacting the solution with a solvent comprising a diluent component and an extractant component. The extractant component is selected from the group consisting of di-2,4,4-trimethylpentyl-n-octyl phosphine oxide, tri-2,4,4-dimethylpenthyl phosphine oxide and mixtures thereof, and the diluent component comprises at least one high molecular weight ketone. This invention is useful in recovering acetic acid from both low concentration and concentrated aqueous acetic acid streams, and is particularly useful in recovering acetic acid from aqueous acetic acid waste streams in processes for the production of terephthalic acid and cellulose acetate.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: December 29, 1992
    Assignee: The University of South Carolina
    Inventor: Vincent Van Brunt
  • Degreasing agent
    Patent number: 5118358
    Abstract: It has now been found that a mixture of methyl acetate, methyl ethyl ketone nd mineral spirits along with a surfactant effectively dissolves fats and greases, and is especially useful for unclogging sewer lines.
    Type: Grant
    Filed: April 11, 1990
    Date of Patent: June 2, 1992
    Assignee: University of South Carolina and the city of Columbia, South Carolina
    Inventors: Vincent van Brunt, Eugene C. McCall, John R. Johnson