Patents by Inventor Jong Gwan Ahn

Jong Gwan Ahn 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).

  • Patent number: 8268232
    Abstract: Provided is an apparatus for dissolving noble metals. A pH adjusting unit controls pH of liquid inside a dissolution reactor in such a manner that a chlorine compound is produced. The noble metal in a noble metal-containing sample introduced into the dissolution reactor is dissolved by the chlorine compound, and the liquid evaporated from an inorganic material extraction unit is recycled to the dissolution reactor.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: September 18, 2012
    Assignee: Korea Institute of Geoscience and Mineral Resources (KIGAM)
    Inventors: Min Seuk Kim, Jong Gwan Ahn
  • Publication number: 20090315232
    Abstract: Provided is an apparatus for dissolving noble metals, including: a sealed dissolution reactor provided with agitators; a sealed electrolysis type chlorine producing unit for supplying chlorine gas produced via electrolysis to the dissolution reactor; a pH adjusting unit for controlling and maintaining pH of the liquid inside the dissolution reactor to convert the chlorine gas supplied to the dissolution reactor into a chlorine compound; and an inorganic material extraction unit for extracting inorganic materials from the liquid received from the dissolution reactor via heating/evaporation, wherein the pH adjusting unit controls pH of the liquid inside the dissolution reactor in such a manner that the chlorine compound is produced, the noble metal in a noble metal-containing sample introduced into the dissolution reactor is dissolved by the chlorine compound, and the liquid evaporated from the inorganic material extraction unit is recycled to the dissolution reactor.
    Type: Application
    Filed: June 23, 2009
    Publication date: December 24, 2009
    Applicant: Korea Institute of Geoscience and Mineral Resources (KIGAM)
    Inventors: Min Seuk Kim, Jong Gwan Ahn