Patents Assigned to Tri-Brothers Chemical Corporation
  • Method to dissolve hydrated aluminum hydroxide gel in potable hot water heaters
    Patent number: 4789407
    Abstract: A method of dissolving aluminum hydroxide gel formed in situ in water heaters having aluminum anode rods therein, comprising contacting the aluminum hydroxide gel with phosphoric acid, said phosphoric acid being present in the range of from about 9% to about 35% by volume at a temperature in the range of from about 138.degree. F. to about 160.degree. F.
    Type: Grant
    Filed: September 10, 1987
    Date of Patent: December 6, 1988
    Assignee: Tri-Brothers Chemical Corporation
    Inventor: Robert S. Boiko