| 摘要 |
Multicomponent catalysts are produced, for example, in the form of rod-like particles, by forming a slurry of gelatinous precipitates of compounds of elements for forming the desired catalyst components, in a strongly ionic aqueous medium, separating the gelatinous precipitates from the slurry without washing, partially drying the unwashed gelatinous precipitates in the form of subdivided cohesive particles to a controlled moisture content, recombining the partially dried cohesive particles and extruding to form extrudate rods, washing the extrudate rods until essentially free of contaminating ions present in the occluded ionic aqueous medium, and thereafter drying and calcining the washed extrudate rods. Catalysts with a variety of different compositions can be prepared by this same general procedure and can be used in appropriate different hydrocarbon conversion processes.
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