Patents Assigned to Titanium Technology N.V.
  • Process for removing chemisorbed and interstitial chlorine and chlorides from a hot titanium dioxide beneficiate-carbon mixture
    Patent number: 4081507
    Abstract: This invention relates to a process for removing hydrogen chloride, chlorine, chlorides, oxychlorides and metal chlorides from a beneficiate produced by contacting a titaniferous ore with chlorine at high temperatures preferably in the presence of carbon wherein the beneficiate mixed with carbon is contacted at temperatures of about 1000.degree. C. with steam, moist air or moist inert gas. The beneficiate which is essentially titanium dioxide is useful as a starting material for the manufacture of titanium dioxide pigments.
    Type: Grant
    Filed: October 3, 1975
    Date of Patent: March 28, 1978
    Assignee: Titanium Technology N.V.
    Inventor: Wendell E. Dunn, Jr.
  • Fluidized bed cooler
    Patent number: 3960203
    Abstract: In the process of beneficiating ilmenite ore by the chloride method the improvement wherein the beneficiate is cooled without oxidation hot finely divided particles comprising using the principle of film boiling to effect volatilization of a non-oxidizing liquid to both fluidize and cool the hot particles.
    Type: Grant
    Filed: April 9, 1973
    Date of Patent: June 1, 1976
    Assignee: Titanium Technology N.V.
    Inventor: Wendell E. Dunn, Jr.