Apparatus and process for producing nanoscale ceramic powders

Details Apparatus and process for producing nanoscale ceramic powders Apparatus and process for producing nanoscale ceramic powders

C - Chemistry, Metallurgy

04

B

C04B 35/64 (2006.01) B01J 19/24 (2006.01) C01B 13/20 (2006.01) C01B 13/34 (2006.01) C01G 25/02 (2006.01)

Patent

CA 2160367

An apparatus provides high temperature and short residence time conditions for the production of nanoscale ceramic powders. The apparatus includes a confinement structure having multiple inclined surfaces for confining flame located between the surfaces so as to define a flame zone. A burner system employs one or more burners to provide flame to the flame zone. Each burner is located in the flame zone in close proximity to at least one of the inclined surfaces. A delivery system disposed adjacent the flame zone delivers an aerosol, comprising an organic or carbonaceous carrier material and a ceramic precursor, to the flame zone to expose the aerosol to a temperature sufficient to induce combustion of the carrier material and vaporization and nucleation, or diffusion and oxidation, of the ceramic precursor to form pure, crystalline, narrow size distribution, nanophase ceramic particles.

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