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Carbon-metal rings

Figure 9-6B. Raschig rings (ceramic, carbon, metal). Figure 9-6B. Raschig rings (ceramic, carbon, metal).
Ring and saddle packings are available in a variety of materials ceramics, metals, plastics and carbon. Metal and plastics (polypropylene) rings are more efficient than ceramic rings, as it is possible to make the walls thinner. [Pg.592]

The mechanism described in Scheme 2 was rejected on the grounds that the steric requirement for the abstraction of a hydrogen atom from -CHD-of species (IV) could not be met. Assuming an atomically flat surface, and sp3 hybridization of the carbon atom bonded to the surface, the plane of the Ce-ring in (IV) is in such a configuration that the hydrogen atom of -CHD- is directed away from the surface, and the deuterium atom toward the surface. Thus, unless the species is adsorbed near a step in the metal lattice, the loss of this hydrogen and the formation of a second carbon-metal bond would require a very considerable distortion of adsorbed species. [Pg.137]

CARBON-SILICON/GERMANIUM-NITROGEN-METAL RINGS... [Pg.479]

See other pages where Carbon-metal rings is mentioned: [Pg.477]    [Pg.360]    [Pg.442]    [Pg.462]    [Pg.477]    [Pg.430]    [Pg.323]    [Pg.477]    [Pg.360]    [Pg.442]    [Pg.462]    [Pg.477]    [Pg.430]    [Pg.323]    [Pg.387]    [Pg.68]    [Pg.138]    [Pg.111]    [Pg.200]    [Pg.340]    [Pg.340]    [Pg.341]    [Pg.341]    [Pg.3]    [Pg.159]    [Pg.145]    [Pg.478]    [Pg.478]    [Pg.479]    [Pg.6]    [Pg.218]    [Pg.387]    [Pg.387]    [Pg.388]    [Pg.604]    [Pg.263]    [Pg.216]    [Pg.98]    [Pg.115]    [Pg.167]    [Pg.25]    [Pg.55]    [Pg.88]    [Pg.268]    [Pg.198]    [Pg.360]    [Pg.361]   


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