Patents by Inventor Ming-Hui Liao

Ming-Hui Liao 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 fluorine from a fluorine-containing wastewater
    Patent number: 7329357
    Abstract: A method for removing fluorine from wastewater includes the steps of: adding a fluorine-reactive agent, that comprises a water-soluble sodium compound and a water-soluble aluminum compound, into the wastewater so as to form sodium ions and aluminum ions in the wastewater and so as to precipitate sodium aluminum fluoride by reaction of the sodium ions and the aluminum ions with fluorine ions in the wastewater; and removing the precipitate of sodium aluminum fluoride from the wastewater.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: February 12, 2008
    Inventor: Ming-Hui Liao
  • Method for removing fluorine from a fluorine-containing wastewater
    Publication number: 20060266711
    Abstract: A method for removing fluorine from wastewater includes the steps of: adding a fluorine-reactive agent, that comprises a water-soluble sodium compound and a water-soluble aluminum compound, into the wastewater so as to form sodium ions and aluminum ions in the wastewater and so as to precipitate sodium aluminum fluoride by reaction of the sodium ions and the aluminum ions with fluorine ions in the wastewater; and removing the precipitate of sodium aluminum fluoride from the wastewater.
    Type: Application
    Filed: May 31, 2005
    Publication date: November 30, 2006
    Inventor: Ming-Hui Liao