Process for the preparation of a temperature-stable TiO2/SiO2 mixed-oxide and its use as a catalyst carrier

Preparation of a titanium dioxide/silicone dioxide mixture, their hydrates and/or oxide hydrates comprises adding a titanium compound and/or their hydrolysis product with a silicic acid compound in an aqueous medium and hydrolyzing the titanium compound in presence or absence of the silicic acid compound comprising an aqueous silicic acid sol, where the titanium dioxide/silicone dioxide mixture comprises 0.5-95 wt.% of silicone and the titanium compound is a titanium alcoholate exhibiting at least 1-16C alcoholates. An independent claim is included for the titanium dioxide/silicone dioxide mixture comprising less than 25 wt.% of silicone dioxide and greater than 75, preferably 95 wt.% of the titanium dioxide that is present in titanium dioxide phase, where the titanium dioxide/silicone dioxide mixture exhibits pore volumes of greater than 0.35, preferably 0.50 ml/g and a rutile transformation temperature of greater than 850, preferably 1000[deg]C.