Process for the continuous production of high purity,...

Details Process for the continuous production of high purity,... Process for the continuous production of high purity,...

C - Chemistry, Metallurgy

01

B

23/223

C01B 21/072 (2006.01) B01J 8/18 (2006.01)

Patent

CA 1310171

ABSTRACT A process for the manufacture of high purity, ultra-fine aluminum nitride powder by the carbo-nitridization of alumina. Agglomerates uniform in both size, chemical composition and porosity are formed containing a stoichiometric mixture of alumina and carbon with the addition of a small amount of catalyst. The agglomerates are furnaced in a controlled manner in a well-mixed reaction vessel to achieve a uniform and consistent level of conversion. Milling of the as-reacted agglomerates under a controlled atmosphere will produce high purity, micron sized aluminum nitride powder.

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