Patents Assigned to A.P.F. AQUA SYSTEM AG
  • Patent number: 9630841
    Abstract: The invention relates to a method for producing an ultrapure, aqueous, long-term- and storage-stable, and thus transportable chlorine dioxide solution, comprising the steps of providing chlorite, providing peroxodisulfate, and combining chlorite and peroxodisulfate in an aqueous system and in a molar ratio of peroxodisulfate to chlorite [S2O82?]/[ClO2?] of greater than 1, forming the aqueous chlorine dioxide solution, wherein no additional buffer is added to produce the aqueous chlorine dioxide solution. The invention further relates to a corresponding chlorine dioxide solution, to the use of said chlorine dioxide solution, and to a device for producing the chlorine dioxide solution.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: April 25, 2017
    Assignee: A.P.F. AQUA SYSTEM AG
    Inventor: Helmut Uhlmann
  • Publication number: 20130287722
    Abstract: The invention relates to a method for producing an ultrapure, aqueous, long-term- and storage-stable, and thus transportable, chlorine dioxide solution, comprising the steps of: providing chlorite, providing peroxodisulfate, and combining chlorite and peroxodisulfate in an aqueous system and in a molar ratio of peroxodisulfate to chlorite [S2O82?]/[ClO2?] of greater than 1, forming the aqueous chlorine dioxide solution, wherein no additional buffer is added to produce the aqueous chlorine dioxide solution. The invention further relates to a corresponding chlorine dioxide solution, to the use of said chlorine dioxide solution, and to a device for producing the chlorine dioxide solution.
    Type: Application
    Filed: December 22, 2011
    Publication date: October 31, 2013
    Applicant: A.P.F. AQUA SYSTEM AG
    Inventor: Helmut Uhlmann