| 摘要 |
A process and apparatus for preparing granular solid products by decomposition of a gaseous reactant to form a solid phase comprising, first preparing at least one bed of particulate solids including relatively small seed particles, the particles within said bed providing a surface on which a solid phase is deposited, The temperature within the vessel and bed are maintained appropriate to the decomposition reaction. Seed particles and the metal carbonyl compound are continuously introduced into the bed. The bed is vibrated so that individual grains move relative to adjacent grains with a slight amplitude and the bed, itself, is continuously turned as the individual grains move generally in a closed circuit. Gaseous byproducts are removed from the bed and granular solids are recovered therefrom.
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