Patents by Inventor Timothy F. Rittoff

Timothy F. Rittoff 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).

  • METHOD FOR PRODUCING POTASSIUM SULFATE AND SODIUM CHLORIDE FROM WASTEWATER
    Publication number: 20200290886
    Abstract: A method of producing potassium sulfate by employing sodium sulfate and potassium chloride sources is disclosed. The method includes a crystallization process that yields a mother liquor containing sulfate, sodium and chloride. The mother liquor is directed to an anion segregation unit that produces a reject or retentate rich in sulfate which is recycled and employed in the production of the potassium sulfate. Further, the anion segregation unit produces a permeate that is depleted in sulfate but includes sodium and chloride and is directed to a sodium chloride crystallizer for producing sodium chloride.
    Type: Application
    Filed: November 22, 2017
    Publication date: September 17, 2020
    Applicant: Veolia Water Technologies, Inc.
    Inventors: Sebastien Bessenet, Jinhai Feng, James F. Rieke, Timothy F. Rittoff
  • Method for producing potassium sulfate and sodium chloride from wastewater
    Patent number: 10773969
    Abstract: A method of producing potassium sulfate by employing sodium sulfate and potassium chloride sources is disclosed. The method includes a crystallization process that yields a mother liquor containing sulfate, sodium and chloride. The mother liquor is directed to an anion segregation unit that produces a reject or retentate rich in sulfate which is recycled and employed in the production of the potassium sulfate. Further, the anion segregation unit produces a permeate that is depleted in sulfate but includes sodium and chloride and is directed to a sodium chloride crystallizer for producing sodium chloride.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: September 15, 2020
    Assignee: Veolia Water Technologies, Inc.
    Inventors: Sebastien Bessenet, Jinhai Feng, James F. Rieke, Timothy F. Rittoff