Patents Assigned to Sobin Chlor-Alkali, Inc.
  • Apparatus for removing mercury from waste water
    Patent number: 4098697
    Abstract: A method for removing mercury from water contaminated with mercury comprising contacting water containing metallic mercury with finely divided anthracite coal. The mercury laden water can be first treated with sodium borohydride to reduce dissolved mercury to the metallic form. The water treated with reducing agent, is filtered through a pressure leaf filter coated with a filter aid, contacted with anthracite coal and contacted with chelating resin.
    Type: Grant
    Filed: September 13, 1974
    Date of Patent: July 4, 1978
    Assignee: Sobin Chlor-Alkali, Inc.
    Inventors: Peter DeAngelis, Alfred R. Morris, Alan L. MacMillan