Process for producing carbonitride of metal

Details Process for producing carbonitride of metal Process for producing carbonitride of metal

C - Chemistry, Metallurgy

01

C

261/1, 23/33

C01C 3/08 (2006.01) C01B 21/082 (2006.01) C04B 35/56 (2006.01) C04B 35/58 (2006.01)

Patent

CA 1151837

ABSTRACT OF THE DISCLOSURE The carbonitrides of metals of Groups IV, V and VI of the Periodic Table are prepared by calcining a precursor obtained by (i) reacting the reaction product of ammonia and the halide of a metal selected from the group consist- ing of Groups IV, V and VI of the Periodic Table of Elements with polyphenol, or (ii) reacting the reaction product of polyphenol and the halide of a metal selected from the group consisting of Groups IV, V and VI of the Periodic Table of Elements with ammonia, the amount of the polyphenol being within the range defined by the following relationship; Image wherein a is the number of the hydroxyl group contained in one molecule of the polyphenol, b is the number of moles of the polyphenol and c is the number of moles of the metallic halide. The desired metallic carbonitride in the form of finely divided powder having a uniform size and an excellent sintering property can be obtained at low energy consumption.

375533

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