Patent ID: 8173098

Claim:
A titanium oxide to be used for a catalyst for treating exhaust gases, wherein the BET specific surface area of said titanium oxide is in the range of 85 to 250 m 2 /g and that the ratio [(Ia/Ib)×100] of the intensity of the peak indicating an anatase crystal present in the range of 2θ=24.7° to 2θ=25.7° of powder X-ray diffraction of said titanium oxide [Ia (count)] to the intensity of the peak indicating an anatase crystal present in the range of 2θ=24.7° to 2θ=25.7° of powder X-ray diffraction of a standard sample mixture composed of 15% by mass of pure anatase titanium dioxide and 85% by mass of pure rutile titanium dioxide [Ib (count)], is in the range of 15 to 145%, and the titanium oxide is selected from the group consisting of a titanium dioxide, a composite oxide of elements consisting of titanium and silicon, and a mixture thereof.