Patents by Inventor Brigitte Kiehling

Brigitte Kiehling 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 partially desalinating water with a weakly acid and strongly basic ion exchanger materials and subsequently regenerating the ion exchanger materials
    Patent number: 4448693
    Abstract: A process for the partial desalination of water with a combination of weakly acid cation exchangers in free acid form and basic anion exchangers in hydrogen carbonate form, both present in aqueous suspensions, and subsequent regeneration of the charged ion exchanger material. The partial desalination is effected with a combination or mixture of a weakly acid cation exchanger material and a basic anion exchanger material. Depending on the combination or mixing ratio of the two exchangers, non-equivalent quantities of neutral salt cations and anions are removed from the water. The regeneration of both exchangers together is effected exclusively with the aid of CO.sub.2.
    Type: Grant
    Filed: January 28, 1982
    Date of Patent: May 15, 1984
    Assignee: Kernforschungszentrum Karlsruhe GmbH
    Inventors: Brigitte Kiehling, Wolfgang Holl