Apparatus for the preparation of semiconducting pyropolymeric inorganic refractory oxide materials
AssigneeUop LLC
InventorGeorge L. Hervert
Life of this patent
Estimating the term…
Abstract
Semiconducting carbonaceous pyropolymeric inorganic refractory oxide materials are prepared by utilizing a continuous semi-fluidized bed system comprising a laterally disposed tubular reaction section, a stabilizing section and a cooling section in axial alignment with one another, means for introducing an inorganic refractory oxide into said reaction section and means for introducing a gaseous hydrocarbon pyropolymeric precursor into the reaction section whereby said oxide is contacted with a precursor while maintaining said oxide in a semi-fluidized state.
Claims11
A continuous semi-fluidized bed system for preparing a semiconducting carbonaceous pyropolymeric inorganic refractory oxide material which comprises in combination, a horizontally disposed stationary tubular reaction section, means for introducing an inorganic refractory oxide into one end of said reaction section and means for withdrawing carbonaceous pyropolymeric inorganic refractory oxide material from the other end thereof, means for introducing a gaseous hydrocarbon pyropolymeric precursor into said reaction section at horizontally spaced points whereby said inorganic refractory oxide material is maintained in at least a semi-fluidized state during passage through said reaction section, means for withdrawing residual gaseous hydrocarbon, heating means substantially encompassing said reaction section for maintaining a pyrolyzing temperature in said reaction section, and means for maintaining a lateral movement of said contacted inorganic refractory oxide material through said reaction section.
Dependencies are inferred from the claim text.