Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1997-07-02
1999-08-10
Lewis, Michael
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502263, 502344, 502414, 502415, B01J 2302, B01J 2304, B01J 2004, B01J 2104
Patent
active
059358947
ABSTRACT:
A method of preparing an alumina-based bodies suitable for use as an adsorbent or catalyst, the method comprising providing a source of activated alumina powder for forming into bodies and providing an aqueous solution containing at least two different alkali metals, at least one alkali metal derived from a soluble carboxylic acid alkali metal salt. As said powder is formed into said bodies, the bodies are contacted or sprayed with the aqueous solution to provide composite bodies containing the alumina powder and the alkali metals and the soluble carboxylic acid alkali metal salt. Alternatively, the alumina bodies may be formed first and then contacted, e.g., soaked in the aqueous solution. Or, a viscous slurry of the activated alumina powder and the aqueous solution may be made. The viscous slurry may be made into bodies by extrusion or by the oil drop method. Thereafter, the bodies are thermally treated to activate alumina therein and remove or decompose the organic part, e.g., carboxylic acid, of the soluble carboxylic acid alkali metal salt.
REFERENCES:
patent: 4755499 (1988-07-01), Neal et al.
patent: 4855276 (1989-08-01), Osborne et al.
patent: 5427995 (1995-06-01), Ziebarth et al.
Alexander Andrew
Ghyka Alexander G.
Laroche Industries, Inc.
Lewis Michael
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