Method for producing monoclinic zirconium dioxide having a large surface area

摘要

At least 80 wt.% monoclinic zirconium dioxide comprises a BET surface area of NOTLESS 100 m2/g. Also claimed are: (a) at least 80 wt.% monoclinic sulphated dioxide with a sulphate content of 0.05-10 wt.%, calculated as SO4, and BET surface area of NOTLESS 100 m2/g; (b) methods of preparing the dioxides; (c) zirconium dioxide prepared by these methods; (d) mouldings containing zirconium dioxide of these types; (e) the production of mouldings by pressing the zirconium dioxide; and (f) a catalyst with a support of zirconium dioxide of these types, doped with 0.1-20 wt.% catalytically active metal(s).