Patents Assigned to Korea Institute of Geosciencie and Mineral Resources and Samhwa Paints Industrial Co., Ltd.
  • Method for producing nanometer-sized ultrafine titanium dioxide powder by chemical reaction using flame
    Publication number: 20020004029
    Abstract: Disclosed is a method for producing nano-sized titanium dioxide (TiO2) ultrafine powder from titanium tetrachloride (TiCl4) in the vapor phase by the gas phase oxidation reaction using flames, in which the method comprises: simultaneously introducing titanium tetrachloride (TiCl4), vapor, argon, oxygen, hydrogen and air into a five-piped flame reactor to form a flame having a temperature of greater than 1,000° C.; and producing nano-sized titanium dioxide ultrafine powder having an average particle size of less than 50 nm.
    Type: Application
    Filed: April 5, 2001
    Publication date: January 10, 2002
    Applicant: Korea Institute of Geosciencie and Mineral Resources and Samhwa Paints Industrial Co., Ltd.
    Inventors: Hee-Dong Jang, Seong-Kil Kim