Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Patent
1993-01-12
1995-08-29
Achutamurthy, P.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
502305, 502325, 502343, 502349, 427205, 427211, 131334, B01J 3504, B01J 3128, A24D 300
Patent
active
054460034
ABSTRACT:
An improved technique is provided for the expeditious formation of a supported catalyst suitable for use in a vapor phase chemical reaction wherein the catalyst is provided as discrete particles. The support need not be capable of withstanding a highly elevated temperature, and may simply be paper or any other readily available material. A layer of deformable adhesive (preferably an organic adhesive) is provided as a liquid or paste on the surface of the support. Particles of a preformed activated catalyst are dispersed on the outer surface of the adhesive so that only a minor portion of the surfaces of the particles is embedded therein. Next the adhesive is solidified under appropriate conditions while maintaining the exposure of a major portion of the surfaces of the solid preformed catalytic particles to the atmosphere. Throughout the formation process the catalytic activity of the exposed surfaces of the catalytic particles remains substantially unaltered. In preferred embodiments the preformed activated catalyst is capable of accelerating the transformation of carbon monoxide to carbon dioxide (e.g., is a mixed transition metal oxide catalyst) and the resulting supported particulate catalyst is incorporated in a cigarette filter or in a room air purification system.
REFERENCES:
patent: 5258340 (1993-11-01), Augustine et al.
Joe E. Hightower, Studies in Surface Science and Catalysis 1 (Preparation of Catalysts), pp. 615 to 635 (1976).
R. Lacroix, Studies in Surface Science and Catalysis 1 (Preparation of Catalysts), pp. 637 to 647 (1976).
C. J. Wright and G. Butler, Studies in Surface Science and Catalysis 16 (Preparation of Catalysts III), pp. 159 to 167 (1983).
G. J. K. Acres, A. J. Bird, J. W. Jenkins, and F. King, Catalysis (London), vol. 4, pp. 1 to 30 (1981).
Augustine Robert L.
Tanielyan Setrak K.
Achutamurthy P.
Philip Morris Incorporated
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