公开(公告)号：ES2159804T3

公开(公告)日：2001-10-16

申请号：ES97122267

申请日：1997-12-17

Applicant: BASF AG

Inventor： WULFF-DORING JOACHIM DR ,  STICHERT WOLFRAM ,  SCHUTH FERDI PROF DR

IPC: B01J21/06 ,  B01J23/10 ,  B01J35/00 ,  B01J35/10 ,  B01J37/03 ,  C01G25/00 ,  C01G25/02

Abstract: At least 80 wt.% monoclinic zirconium dioxide comprises a BET surface area of NOTLESS 100 m /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 m /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).