| 摘要 |
Hollow porous microspheres are used as substrates and containers for catalyst to make microsphere catalysts. The hollow porous microspheres are made from dispersed particle compositions. The microspheres have a single central cavity, have substantially uniform diameters and substantially uniform wall thickness and the walls of the microspheres have substantially uniform void content, i.e., interconnecting voids, and have substantially uniform distribution of interconnecting voids. The interconnecting voids in the walls of the microspheres are continuous and extend from the outer wall surface of the microsphere to the inner wall surface of the microsphere. The microsphere catalysts are prepared by coating or impregnating the hollow porous microspheres with a catalyst or by applying a catalyst support to the microspheres and then coating or impregnating the microspheres and catalyst support with a catalyst. The microsphere catalyst can also be prepared by filling the hollow porous microspheres with a catalyst or catalyst and catalyst support. The microsphere catalyst can be treated to immobilize the catalyst and can be treated to provide the microsphere with a selective membrane. The microsphere catalyst can be used for a wide variety of catalyst reactions.
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