Bridge/lamellar metallic oxides

Details Bridge/lamellar metallic oxides Bridge/lamellar metallic oxides

1989-06-12

1991-12-17

Rosenberg, Peter D.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C01F 100

Patent

active

050733605

ABSTRACT:
Bridged/lamellar metallic oxides, e.g., those of vanadium, molybdenum, tungsten and titanium, which have large and stable specific surfaces and are well adopted as catalysts, are prepared by (a) intimately admixing a gel of a metallic oxide having a lamellar structure with a cationic solution, (b) adding a solution of a spheroidal cationic species, e.g., a polyoxocation of aluminum, chromium, zirconium, nickel, molybdenum, niobium or tantalum, to the reaction medium thus produced, and then (c) aging the reaction medium for such period of time as to exchange the spheroidal cationic species for the cations introduced in step (a).

REFERENCES:
patent: 3056647 (1962-10-01), Amplett
patent: 4389385 (1983-06-01), Ramsay
patent: 4724135 (1988-02-01), Cirjak
patent: 4731234 (1988-03-01), Wada
Mario L. Occelli, Catalytic Cracking with an Interlayered Clay, A Two-Dimensional Molecular Sieve, 1983, vol. 22, No. 4, pp. 553-558.
Pierre Aldebert et al., V.sub.2 O.sub.5 Gels: A Versatile Host Structure for Intercalation, May 1982, pp. 484-495.

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