Patents Assigned to Ivo International Ltd.
  • Preparation of granular titanate ion exchangers
    Patent number: 6106799
    Abstract: A titanate ion exchanger and method of producing same. Solid hydrous titanium oxide in a slurry is reacted with an alkaline agent, such as NaOH, containing an exchangeable cation. A solids fraction containing the titanate product is settled and separated and a granular titanate ion exchanger product recovered from the solids fraction. The ion exchanger is suitable for the separation of radionuclides, such as those containing radioactive strontium, from nuclear waste solutions.
    Type: Grant
    Filed: December 11, 1996
    Date of Patent: August 22, 2000
    Assignee: Ivo International Ltd.
    Inventors: Jukka Lehto, Heikki Leinonen, Risto Harjula