Flame-hydrolytically produced titanium dioxide mixed oxide method of its production and its use
AssigneeDegussa AG
InventorsWerner Hartmann, Helmut Mangold, Dieter Kerner
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Abstract
Flame-hydrolytically produced titanium dioxide mixed oxide having a BET surface of 10 to 150 m.sup.2 /g and 1 to 30% by weight aluminum oxide or 1 to 30% by weight silicon dioxide is produced by evaporating aluminum chloride or silicon tetrachloride, transferring the evaporated aluminum chloride or silicon tetrachloride, together with an inert gas, into the mixing chamber of a burner, mixing them with hydrogen, air and gaseous titanium tetrachloride, burning the resulting 4-component mixture in the reaction chamber of the burner, and separating the titanium dioxide mixed oxide from the gaseous reaction products.
Claims7
A member of the group consisting of catalysts, catalytic carriers, photocatalysts, automobile paints, cosmetic articles and silicone rubbers comprising a flame-hydrolytically produced titanium dioxide mixed oxide having a BET surface of 10 to 150 m.sup.2 /g which contains 1-30% by weight of a member of the group consisting of aluminum oxide and silicon dioxide as a component of the mixed oxide, and a balance of the titanium dioxide and unavoidable impurities.
A silicone rubber comprising a flame-hydrolytically produced titanium dioxide mixed oxide as a heat stabilizer, having a BET surface of 10 to 150 m.sup.2 /g which contains 1 to 30% by weight of a member of the group consisting of aluminum oxide and silicon dioxide as a component of the mixed oxide, and a balance of the titanium dioxide and unavoidable impurities.
Dependencies are inferred from the claim text.