Production of ceramic materials by pyrolyzing the reaction...

Details Production of ceramic materials by pyrolyzing the reaction... Production of ceramic materials by pyrolyzing the reaction...

C - Chemistry, Metallurgy

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C01B 31/30 (2006.01) C01B 21/06 (2006.01) C01B 31/36 (2006.01) C01B 33/06 (2006.01) C01B 35/04 (2006.01) C08G 79/10 (2006.01) C01B 21/064 (2006.01) C01B 21/068 (2006.01) C01B 21/076 (2006.01)

Patent

CA 1323976

ABSTRACT A process for the production of a refractory compound, e.g. a carbide or nitride, of a metallic or non-metallic element, by reacting a mixture of a compound of the metallic or non-metallic element having at least two groups reactive with hydroxyl groups and an organic compound having at least two hydroxyl groups to produce an oxygen-containing polymeric product, and pyrolysing the polymeric product, e.g. in an inert atmosphere to produce a carbide or in an atmosphere of reactive nitrogen compound to produce a nitride, in which the reaction mixture contains an aluminium compound containing at least one group reactive with hydroxyl groups. The presence of the aluminium compound in the reaction mixture leads to an increase in the proportion of carbon in the product initially produced by pyrolysis, and to a higher purity in the refractory compound which is ultimately produced.

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