Production of supported particulate catalyst suitable for use in a vapor phase reactor

摘要

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.