Patents Assigned to Degussa Aktiegesellschaft
  • Process for the treatment of effluents containing cyanide and other oxidizable substances
    Patent number: 4915849
    Abstract: Treatment of effluent containing cayanide is disclosed wherein a mixture of H.sub.2 SO.sub.4 and H.sub.2 O.sub.2 with between 0.01 and 0.5 moles of H.sub.2 SO.sub.4 per mole of H.sub.2 O.sub.2 is used.
    Type: Grant
    Filed: August 17, 1988
    Date of Patent: April 10, 1990
    Assignee: Degussa Aktiegesellschaft
    Inventors: Andrew Griffiths, M. Quamrul Ahsan, Roy Norcross, Helmut Knorre, Friedrich W. Merz