Title:
【発明の名称】表面積の大なるジルコニア
Document Type and Number:
Japanese Patent JP3251951
Kind Code:
B2
Abstract:
High surface area zirconia, having a surface area after calcination, is obtainable by a process comprising aging zirconium hydroxide in the presence of an acid of an element of Group V or VI of the Periodic Table of Elements and calcining the zirconium material so-obtained. The preferred acid is phosphoric acid, in particular orthophosphoric acid. A high surface area zirconia is provided having a surface area of at least 180m<2>/g after calcination at a temperature of 300 DEG C.
Inventors:
Donald Reinalda
Anke Delking
Anke Delking
Application Number:
JP15735091A
Publication Date:
January 28, 2002
Filing Date:
June 03, 1991
Export Citation:
Assignee:
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BESLOTEN VENNOOTSHAP
International Classes:
B01J21/06; B01J27/16; C01G25/02; C07C1/04; (IPC1-7): C01G25/02
Domestic Patent References:
| JP350121A | ||||
| JP5867785A |
Attorney, Agent or Firm:
Kazuho Kawarada