Patents by Inventor Dennis J. Burke

Dennis J. Burke 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: 4528101
    Abstract: A process for the separation of a mineral acid from a common ion salt comprises a step of flowing a quantity of the mineral acid and salt in aqueous solution onto a strong base common ion form anion exchange resin bed whereon the mineral acid is retarded with respect to the salt. The salt is removed from the anion exchange resin. An interface cut of the mineral acid and the salt is recirculated from a bottom portion to a top portion of the anion exchange resin for further separation. A quantity of water is flowed through the anion exchange resin bed to elute the mineral acid therefrom. A portion of the elutant fluid is recycled to the top of the anion exchange resin bed.
    Type: Grant
    Filed: September 9, 1983
    Date of Patent: July 9, 1985
    Assignee: Illinois Water Treatment Company
    Inventors: Dennis J. Burke, Robert D. Moore
  • Patent number: 4193817
    Abstract: Bottler's liquid sugar is produced essentially from brown sugar, which is derived from cane sugar and crystallized in one or more intermediate strikes, by remelting the crystallized product of one or more intermediate strikes, filtering the remelted product, and passing the filtered product in contact with chloride form of Type-1 strong-base anion-exchange resin. An array of plural columns, which contain similar resin, is operated in a merry-go-round sequence allowing continuous operation. Countercurrent regeneration is preferred. Regeneration by an aqueous solution of hydrochloric acid followed by an aqueous solution of sodium chloride and sodium hydroxide allows service at 30.degree. C.
    Type: Grant
    Filed: March 22, 1979
    Date of Patent: March 18, 1980
    Assignee: Illinois Water Treatment
    Inventors: Terry R. Dillman, Dennis J. Burke