Patents by Inventor Charles Edward Mackey

Charles Edward Mackey has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for removing silica from evaporator concentrate
    Patent number: 7686079
    Abstract: A method for removing silica from evaporator concentrate to facilitate disposal of the concentrate. An alkaline earth compound is mixed with the concentrate in a crystallizer. Silica in the concentrate reacts with the alkaline earth compound and precipitates from the concentrate as alkaline silicate complexes. The concentrate having the alkaline earth silicate complexes is directed to a separator where the alkaline earth silicate complexes are separated from the concentrate, producing an aqueous solution and slurry. The slurry is directed to a filter where solids are separated from a filtrate. Both the aqueous solution and the filtrate can be disposed of by deep well injection.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: March 30, 2010
    Assignee: HPD, LLC
    Inventors: David E. Gamache, Charles Edward Mackey, Mark D. Patterson
  • METHOD FOR REMOVING SILICA FROM EVAPORATOR CONCENTRATE
    Publication number: 20100038081
    Abstract: A method for removing silica from evaporator concentrate to facilitate disposal of the concentrate. An alkaline earth compound is mixed with the concentrate in a crystallizer. Silica in the concentrate reacts with the alkaline earth compound and precipitates from the concentrate as alkaline silicate complexes. The concentrate having the alkaline earth silicate complexes is directed to a separator where the alkaline earth silicate complexes are separated from the concentrate, producing an aqueous solution and slurry. The slurry is directed to a filter where solids are separated from a filtrate. Both the aqueous solution and the filtrate can be disposed of by deep well injection.
    Type: Application
    Filed: August 18, 2008
    Publication date: February 18, 2010
    Applicant: HPD, LLC
    Inventors: David E. Gamache, Charles Edward Mackey, Mark D. Patterson