Patents Assigned to Delta Chemical Corporation
  • Polyaluminum chlorides and polyaluminum chlorosulfates methods and compositions
    Patent number: 6036935
    Abstract: The present invention is directed to a process for the production of polyaluminum chlorides and polyaluminum chlorosulfates useful as coagulants in water treatment. In addition, the invention is directed to the products made by the disclosed processes.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: March 14, 2000
    Assignee: Delta Chemical Corporation
    Inventor: James M. Dulko
  • Polyaluminum chlorides and polyaluminum chlorosulfates methods and compositions
    Patent number: 5997838
    Abstract: The present invention is directed to a process for the production of polyaluminum chlorides and polyaluminum chlorosulfates useful as coagulants in water treatment. In addition, the invention is directed to the products made by the disclosed processes.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: December 7, 1999
    Assignee: Delta Chemical Corporation
    Inventor: James M. Dulko
  • Polyaluminum chlorides and polyaluminum chlorosulfates methods and compositions
    Patent number: 5985234
    Abstract: The present invention is directed to a process for the production of polyaluminum chlorides and polyaluminum chlorosulfates useful as coagulants in water treatment. In addition, the invention is directed to the products made by the disclosed processes.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: November 16, 1999
    Assignee: Delta Chemical Corporation
    Inventor: James M. Dulko