Method of producing a composition containing a large amount...

Details Method of producing a composition containing a large amount... Method of producing a composition containing a large amount...

C - Chemistry, Metallurgy

01

B

23/222

C01B 21/06 (2006.01)

Patent

CA 1074531

METHOD OF PRODUCING A COMPOSITION CONTAINING A LARGE AMOUNT OF VANADIUM AND CARBON Abstract of the Disclosure A method for producing a material containing vanadium and nitrogen and less than 2% carbon and oxygen by vacuum furnacing is described which comprises subject stoichiometric proportion of V2O3 and carbon according to the formula: V2O3 + 3C ? 2V + 3CO to a furnace temperature of from 1100°C to 1500°C under a reduced pressure of from 5 mm to 100 mm, maintaining such temperature and pressure until CO is substantially no longer evolved, then maintaining said temperature and introducing nitrogen gas into the furnace to provide a nitrogen atmosphere of at least 0.25 atmosphere pressure and thereafter repeating the above steps until the nitrogen content in the mixture is about 10 to 12% by weight. S P E C I F I C A T I O N

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