Patents Examined by Peter C. Hruskoci
  • Method for removing a cyanide contaminant from refinery waste water streams
    Patent number: 5415785
    Abstract: A method for reducing cyanide contaminants in refinery waste waters prior to reuse or release into the environment comprising adding to the waters a cyanide reactive scavenger comprising at least one amine-aldehyde reaction product.
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: May 16, 1995
    Assignee: Nalco Chemical Company
    Inventors: Michael L. Braden, Veronica K. Braden, Manian Ramesh, Everett C. Phillips