Patent ID: 6544493
Filing Date: 2003-04-08
Classification: C01G,C01P

Abstract:
A process of producing titanium oxide by oxidizing titanium tetrachloride with an oxidizing gas at a high temperature in a vapor phase process, comprising the steps of preheating a titanium tetrachloride-containing gas and an oxidizing gas to about 500Â° C. or more and supplying the preheated gases into a reaction tube; wherein the oxidizing is a reaction that is performed by supplying the titanium tetrachloride-containing gas and the oxidizing gas, each preheated to about 500Â° C. or more, to a reaction tube each at a velocity of 10 m/sec or more, each gas passing through said reaction tube at an average velocity of about 5 m/sec or more, the titanium tetrachloride-containing gas and the oxidizing gas being supplied into the reaction tube through a coaxial parallel flow nozzle and the inner tube of said coaxial parallel flow nozzle having an inside diameter of 50 mm or less, thereby producing particulates of titanium oxide particulate having a BET specific surface area of from about 3 m2/g to about 200 m2/g.