High surface area zirconia

Details High surface area zirconia High surface area zirconia

1991-03-13

1995-02-21

Niebling, John

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ivb metal

423 84, 423 85, C01G 2502

Patent

active

053913620

ABSTRACT:
The invention relates to a high surface area zirconia, having a surface area of above 125 m.sup.2 /g and preferably of above 200 m.sup.2 /g after calcination. The high surface area zirconia product of the invention can be prepared by mixing a zirconium salt solution with an alkali or ammonium compound, the zirconium hydroxide precipitate being aged in the presence of an oxygen acid of an element of group 5 or 6 of the Periodic Table of Elements and subsequently being calcined, optionally after a washing step. The preferred acid is phosphoric acid.

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patent: 4746497 (1988-05-01), Jenkins et al.
patent: 4822575 (1989-04-01), Ngian et al.
Grant and Hackn, "Chemical Dictionary", McGraw-Hill, N.Y., 1987, 5th Ed, p. 289.

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