Titania (TiO.sub.2) support and process for preparation and use of the same

A process for preparing a catalyst support comprising the steps of:

• (a) treating titanium white with sulfuric acid, after hydrolyzing said treated titanium white with crystal seeds, obtaining titanium oxide and mother liquor, removing said mother liquor, washing said titanium oxide to a pH 7.0.+-.0.5, drying said titanium oxide at 110.+-.10.degree. C. for 8 to 14 hours and crushing said titanium oxide to a powder having a particle size less than 160 mesh:
• (b) mixing 60 to 100 parts by weight of the powder obtained by step (a) and 0 to 40 parts by weight of aluminum oxide with 0 to 10 weight percent of a molding additive, 0 to 5 weight percent of a pore-enlarging agent and 0.1 to 0.3 weight percent of a crystal form-converting agent based on the total weight of said titanium oxide and aluminum oxide to obtain a mixture, and after molding, and drying said mixture at a temperature between 80.degree. C. to 120.degree. C. for 8 to 16 hours, then calcining said mixture at 0-50 mmH.sub.2 O, 350-650.degree. C. for 1 to 6 hours.