Catalytic support with an oxide base from a metal belonging to the SVI group of the periodic table, its preparation and its uses

Procedure for the preparation of a catalyst support, comprising the following steps:

• (a) from a solution of at least one salt of at least one of zirconium and titanium, precipitating the corresponding metal oxide(s);
• (b) ripening under reflux the precipitate obtained;
• (c) adding silica;
• (d) ripening the mixture, under agitation;
• (e) washing, filtering and then drying the solid obtained from step (d);
• (f) shaping the solid;
• and
• (g) calcining the solid to thereby obtain a catalytic support comprising a quantity of at least one metal oxide selected from the group consisting of zirconia, titanium oxide, and a mixture thereof, in which is incorporated silica, wherein the mass ratio between the quantity of the metal oxide and the quantity of silica it contains ranges between 5 and 70 the metal oxide is in crystalline form, and the specific surface of the support is greater than or equal to 160 m2/q, wherein the support has a pore volume greater than or equal to 0.25 cm3/q and less than or equal to 0.60 cm3/g.